@inproceedings{BeckerXavierPreideletal.2013, author = {Becker, Christiane and Xavier, Jolly and Preidel, Veit and Wyss, Philippe and Sontheimer, Tobias and Rech, Bernd and Probst, J{\"u}rgen and H{\"u}lsen, Christoph and L{\"o}chel, Bernd and Erko, Alexei and Burger, Sven and Schmidt, Frank and Back, Franziska and Rudigier-Voigt, Eveline}, title = {Nanophotonic light trapping in polycrystalline silicon thin-film solar cells using periodically nanoimprint-structured glass substrates}, series = {Proc. SPIE}, volume = {8824}, booktitle = {Proc. SPIE}, doi = {10.1117/12.2023871}, pages = {88240D}, year = {2013}, language = {en} } @article{BeckerWyssEisenhaueretal., author = {Becker, Christiane and Wyss, Philippe and Eisenhauer, David and Probst, J{\"u}rgen and Preidel, Veit and Hammerschmidt, Martin and Burger, Sven}, title = {5 x 5 cm2 silicon photonic crystal slabs on glass and plastic foil exhibiting broadband absorption and high-intensity near-fields}, series = {Sci. Rep.}, volume = {4}, journal = {Sci. Rep.}, doi = {10.1038/srep05886}, pages = {5886}, language = {en} } @article{BarthRoderBrodoceanuetal., author = {Barth, Carlo and Roder, Sebastian and Brodoceanu, Daniel and Kraus, Tobias and Hammerschmidt, Martin and Burger, Sven and Becker, Christiane}, title = {Increased fluorescence of PbS quantum dots in photonic crystals by excitation enhancement}, series = {Appl. Phys. Lett.}, volume = {111}, journal = {Appl. Phys. Lett.}, doi = {10.1063/1.4995229}, pages = {031111}, language = {en} } @article{JaegerKoeppelEisenhaueretal., author = {J{\"a}ger, Klaus and K{\"o}ppel, Grit and Eisenhauer, David and Chen, Duote and Hammerschmidt, Martin and Burger, Sven and Becker, Christiane}, title = {Optical simulations of advanced light management for liquid-phase crystallized silicon thin-film solar cells}, series = {Proc. SPIE}, volume = {10356}, journal = {Proc. SPIE}, doi = {10.1117/12.2273994}, pages = {103560F}, language = {en} } @article{HammerschmidtBarthPomplunetal., author = {Hammerschmidt, Martin and Barth, Carlo and Pomplun, Jan and Burger, Sven and Becker, Christiane and Schmidt, Frank}, title = {Reconstruction of photonic crystal geometries using a reduced basis method for nonlinear outputs}, series = {Proc. SPIE}, volume = {9756}, journal = {Proc. SPIE}, doi = {10.1117/12.2212482}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-58187}, pages = {97561R}, abstract = {Maxwell solvers based on the hp-adaptive finite element method allow for accurate geometrical modeling and high numerical accuracy. These features are indispensable for the optimization of optical properties or reconstruction of parameters through inverse processes. High computational complexity prohibits the evaluation of the solution for many parameters. We present a reduced basis method (RBM) for the time-harmonic electromagnetic scattering problem allowing to compute solutions for a parameter configuration orders of magnitude faster. The RBM allows to evaluate linear and nonlinear outputs of interest like Fourier transform or the enhancement of the electromagnetic field in milliseconds. We apply the RBM to compute light-scattering off two dimensional photonic crystal structures made of silicon and reconstruct geometrical parameters.}, language = {en} } @article{JaegerBarthHammerschmidtetal., author = {J{\"a}ger, Klaus and Barth, Carlo and Hammerschmidt, Martin and Herrmann, Sven and Burger, Sven and Schmidt, Frank and Becker, Christiane}, title = {Simulations of sinusoidal nanotextures for coupling light into c-Si thin-film solar cells}, series = {Opt. Express}, volume = {24}, journal = {Opt. Express}, doi = {10.1364/OE.24.00A569}, pages = {A569}, language = {en} } @inproceedings{JaegerHammerschmidtKoeppeletal., author = {J{\"a}ger, Klaus and Hammerschmidt, Martin and K{\"o}ppel, Grit and Burger, Sven and Becker, Christiane}, title = {On Accurate Simulations of Thin-Film Solar Cells With a Thick Glass Superstrate}, series = {Light, Energy and the Environment 2016}, booktitle = {Light, Energy and the Environment 2016}, doi = {10.1364/PV.2016.PM3B.5}, pages = {PM3B.5}, language = {en} } @inproceedings{JaegerKoeppelHammerschmidtetal., author = {J{\"a}ger, Klaus and K{\"o}ppel, Grit and Hammerschmidt, Martin and Burger, Sven and Becker, Christiane}, title = {Accurate optical simulations of periodic nanostructures on a thick glass substrate}, series = {29th Workshop on Quantum Solar Energy Conversion - (QUANTSOL)}, booktitle = {29th Workshop on Quantum Solar Energy Conversion - (QUANTSOL)}, language = {en} } @article{EisenhauerJaegerKoeppeletal., author = {Eisenhauer, David and J{\"a}ger, Klaus and K{\"o}ppel, Grit and Rech, Bernd and Becker, Christiane}, title = {Optical Properties of Smooth Anti-reflective Three-dimensional Textures for Silicon Thin-film Solar Cells}, series = {Energy Procedia}, volume = {102}, journal = {Energy Procedia}, doi = {10.1016/j.egypro.2016.11.314}, pages = {27 -- 35}, language = {en} } @article{EisenhauerKoeppelJaegeretal., author = {Eisenhauer, David and K{\"o}ppel, Grit and J{\"a}ger, Klaus and Chen, Duote and Shargaieva, Oleksandra and Sonntag, Paul and Armkreutz, Daniel and Rech, Bernd and Becker, Christiane}, title = {Smooth anti-reflective three-dimensional textures for liquid phase crystallized silicon thin-film solar cells on glass}, series = {Sci. Rep.}, volume = {7}, journal = {Sci. Rep.}, doi = {10.1038/s41598-017-02874-y}, pages = {2658}, language = {en} } @article{JaegerKoeppelHammerschmidtetal., author = {J{\"a}ger, Klaus and K{\"o}ppel, Grit and Hammerschmidt, Martin and Burger, Sven and Becker, Christiane}, title = {On accurate simulations of thin-film solar cells with a thick glass superstrate}, series = {Opt. Express}, volume = {26}, journal = {Opt. Express}, doi = {10.1364/OE.26.000A99}, pages = {A99}, language = {en} } @article{ChenManleyTockhornetal., author = {Chen, Duote and Manley, Phillip and Tockhorn, Philipp and Eisenhauer, David and K{\"o}ppel, Grit and Hammerschmidt, Martin and Burger, Sven and Albrecht, Steve and Becker, Christiane and J{\"a}ger, Klaus}, title = {Nanophotonic Light Management for Perovskite-Silicon Tandem Solar Cells}, series = {J. Photonics Energy}, volume = {8}, journal = {J. Photonics Energy}, doi = {10.1117/1.JPE.8.022601}, pages = {022601}, language = {en} } @article{BeckerLockauSontheimeretal.2012, author = {Becker, Christiane and Lockau, Daniel and Sontheimer, Tobias and Schubert-Bischoff, Peter and Rudigier-Voigt, Eveline and Bockmeyer, Matthias and Schmidt, Frank and Rech, Bernd}, title = {Large-area 2D periodic crystalline silicon nanodome arrays on nanoimprinted glass exhibiting photonic band structure effects}, series = {Nanotechnology}, volume = {23}, journal = {Nanotechnology}, number = {13}, doi = {10.1088/0957-4484/23/13/135302}, pages = {135302}, year = {2012}, language = {en} } @article{SontheimerRudigierVoigtBockmeyeretal.2012, author = {Sontheimer, Tobias and Rudigier-Voigt, Eveline and Bockmeyer, Matthias and Lockau, Daniel and Klimm, Carola and Becker, Christiane and Rech, Bernd}, title = {Light harvesting architectures for electron beam evaporated solid phase crystallized Si thin film solar cells}, series = {Journal of Non-Crystalline Solids}, volume = {358}, journal = {Journal of Non-Crystalline Solids}, number = {17}, doi = {10.1016/j.jnoncrysol.2011.10.025}, pages = {2303 -- 2307}, year = {2012}, language = {en} } @article{LockauSontheimerBeckeretal.2013, author = {Lockau, Daniel and Sontheimer, Tobias and Becker, Christiane and Rudigier-Voigt, Eveline and Schmidt, Frank and Rech, Bernd}, title = {Nanophotonic light trapping in 3-dimensional thin-film silicon architectures}, series = {Opt. Express}, volume = {21}, journal = {Opt. Express}, doi = {10.1364/OE.21.000A42}, pages = {A42}, year = {2013}, language = {en} } @article{LockauSontheimerPreideletal.2013, author = {Lockau, Daniel and Sontheimer, Tobias and Preidel, Veit and Becker, Christiane and Ruske, Florian and Schmidt, Frank and Rech, Bernd}, title = {Optical properties and Limits of a Large-Area Periodic Nanophotonic Light Trapping Design for Polycrystalline Silicon Thin Film Solar Cells}, series = {MRS Proceedings}, volume = {1493}, journal = {MRS Proceedings}, doi = {10.1557/opl.2013.28}, pages = {59 -- 64}, year = {2013}, language = {en} } @inproceedings{JaegerBarthHammerschmidtetal., author = {J{\"a}ger, Klaus and Barth, Carlo and Hammerschmidt, Martin and Herrmann, Sven and Burger, Sven and Schmidt, Frank and Becker, Christiane}, title = {Sinusoidal Nanotextures for Enhanced Light Management in Thin-Film Solar Cells}, series = {28th Workshop on Quantum Solar Energy Conversion - (QUANTSOL)}, booktitle = {28th Workshop on Quantum Solar Energy Conversion - (QUANTSOL)}, editor = {European Society for Quantum Solar Energy Conversion,}, language = {en} } @article{BarthBurgerBecker, author = {Barth, Carlo and Burger, Sven and Becker, Christiane}, title = {Symmetry-Dependency of Anticrossing Phenomena in Slab-Type Photonic Crystals}, series = {Opt. Express}, volume = {24}, journal = {Opt. Express}, doi = {10.1364/OE.24.010931}, pages = {10931}, language = {en} } @article{BarthProbstHerrmannetal., author = {Barth, Carlo and Probst, J{\"u}rgen and Herrmann, Sven and Hammerschmidt, Martin and Becker, Christiane}, title = {Numerical characterization of symmetry properties for photonic crystals with hexagonal lattice}, series = {Proc. SPIE}, volume = {9885}, journal = {Proc. SPIE}, doi = {10.1117/12.2227094}, pages = {988506}, abstract = {We present a numerical method to characterize the symmetry properties of photonic crystal (PhC) modes based on field distributions, which themselves can be obtained numerically. These properties can be used to forecast specific features of the optical response of such systems, e.g. which modes are allowed to couple to external radiation fields. We use 2D PhCs with a hexagonal lattice of holes in dielectric as an example and apply our technique to reproduce results from analytical considerations. Further, the method is extended to fully vectorial problems in view of 3D PhCs and PhC slabs, its functionality is demonstrated using test cases and, finally, we provide an efficient implementation. The technique can thus readily be applied to output data of all band structure computation methods or even be embedded - gaining additional information about the mode symmetry.}, language = {en} } @article{JaegerKoeppelBarthetal., author = {J{\"a}ger, Klaus and K{\"o}ppel, Grit and Barth, Carlo and Hammerschmidt, Martin and Herrmann, Sven and Burger, Sven and Schmidt, Frank and Becker, Christiane}, title = {Sinusoidal gratings for optimized light management in c-Si thin-film solar cells}, series = {Proc. SPIE}, volume = {9898}, journal = {Proc. SPIE}, doi = {10.1117/12.2225459}, pages = {989808}, language = {en} } @inproceedings{JaegerBarthHammerschmidtetal., author = {J{\"a}ger, Klaus and Barth, Carlo and Hammerschmidt, Martin and Herrmann, Sven and Burger, Sven and Schmidt, Frank and Becker, Christiane}, title = {Sinusoidal Nanotextures for Coupling Light into c-Si Thin-Film Solar Cells}, series = {Light, Energy and the Environement 2015}, booktitle = {Light, Energy and the Environement 2015}, doi = {10.1364/PV.2015.PTu4B.3}, pages = {PTu4B.3}, language = {en} } @inproceedings{BarthJaegerBurgeretal., author = {Barth, Carlo and J{\"a}ger, Klaus and Burger, Sven and Hammerschmidt, Martin and Schmidt, Frank and Becker, Christiane}, title = {Design of Photonic Crystals with Near-Surface Field Enhancement}, series = {Light, Energy and the Environement 2015}, booktitle = {Light, Energy and the Environement 2015}, doi = {10.1364/PV.2015.JTu5A.9}, pages = {JTu5A.9}, language = {en} } @article{PreidelLockauSontheimeretal.2013, author = {Preidel, Veit and Lockau, Daniel and Sontheimer, Tobias and Back, Franziska and Rudigier-Voigt, Eveline and Rech, Bernd and Becker, Christiane}, title = {Analysis of absorption enhancement in tailor-made periodic polycrystalline silicon microarrays}, series = {physica status solidi (RRL)-Rapid Research Letters}, volume = {7}, journal = {physica status solidi (RRL)-Rapid Research Letters}, number = {12}, publisher = {WILEY-VCH Verlag}, doi = {10.1002/pssr.201308098}, pages = {1045 -- 1049}, year = {2013}, language = {en} } @article{BeckerAmkreutzSontheimeretal.2013, author = {Becker, Christiane and Amkreutz, Daniel and Sontheimer, Tobias and Preidel, Veit and Lockau, Daniel and Haschke, Jan and Jogschies, Lisa and Klimm, Carola and Merkel, Janis J. and Plocica, Paul and Steffens, Simon and Rech, Bernd}, title = {Polycrystalline silicon thin-film solar cells: Status and perspectives}, series = {Solar Energy Materials and Solar Cells}, volume = {119}, journal = {Solar Energy Materials and Solar Cells}, doi = {10.1016/j.solmat.2013.05.043}, pages = {112 -- 123}, year = {2013}, language = {en} } @article{SontheimerPreidelLockauetal.2013, author = {Sontheimer, Tobias and Preidel, Veit and Lockau, Daniel and Back, Franziska and Rudigier-Voigt, Eveline and L{\"o}chel, Bernd and Erko, Alexei and Schmidt, Frank and Schnegg, Alexander and Lips, Klaus and Becker, Christiane and Rech, Bernd}, title = {Correlation between structural and opto-electronic characteristics of crystalline Si microhole arrays for photonic light management}, series = {Journal of Applied Physics}, volume = {114}, journal = {Journal of Applied Physics}, number = {17}, publisher = {AIP Publishing}, doi = {10.1063/1.4829008}, pages = {173513}, year = {2013}, language = {en} } @article{LockauSontheimerPreideletal., author = {Lockau, Daniel and Sontheimer, Tobias and Preidel, Veit and Ruske, Florian and Hammerschmidt, Martin and Becker, Christiane and Schmidt, Frank and Rech, Bernd}, title = {Advanced microhole arrays for light trapping in thin film silicon solar cells}, series = {Solar Energy Materials and Solar Cells}, volume = {125}, journal = {Solar Energy Materials and Solar Cells}, doi = {10.1016/j.solmat.2013.11.024}, pages = {298 -- 304}, language = {en} } @article{BarthBecker, author = {Barth, Carlo and Becker, Christiane}, title = {Machine learning classification for field distributions of photonic modes}, series = {Commun. Phys.}, volume = {1}, journal = {Commun. Phys.}, doi = {10.1038/s42005-018-0060-1}, pages = {58}, language = {en} } @inproceedings{JaegerJoštSutteretal., author = {J{\"a}ger, Klaus and Jošt, Marko and Sutter, Johannes and Tockhorn, Philipp and K{\"o}hnen, Eike and Eisenhauer, David and Manley, Phillip and Albrecht, Steve and Becker, Christiane}, title = {Improving Monolithic Perovskite/Silicon Tandem Solar Cells From an Optical Viewpoint}, series = {OSA Advanced Photonics Congress}, booktitle = {OSA Advanced Photonics Congress}, doi = {10.1364/PVLED.2019.PM4C.2}, pages = {PM4C.2}, language = {en} } @article{TockhornSutterColometal., author = {Tockhorn, Philipp and Sutter, Johannes and Colom, R{\´e}mi and Kegelmann, Lukas and Al-Ashouri, Amran and Roß, Marcel and J{\"a}ger, Klaus and Unold, Thomas and Burger, Sven and Albrecht, Steve and Becker, Christiane}, title = {Improved Quantum Efficiency by Advanced Light Management in Nanotextured Solution-Processed Perovskite Solar Cells}, series = {ACS Photonics}, volume = {7}, journal = {ACS Photonics}, doi = {10.1021/acsphotonics.0c00935}, pages = {2589}, language = {en} } @article{ManleyWaldeHagedornetal., author = {Manley, Phillip and Walde, Sebastian and Hagedorn, Sylvia and Hammerschmidt, Martin and Burger, Sven and Becker, Christiane}, title = {Nanopatterned Sapphire Substrates in Deep-UV LEDs: Is there an Optical Benefit?}, series = {Opt. Express}, volume = {28}, journal = {Opt. Express}, doi = {10.1364/OE.379438}, pages = {3619}, language = {en} } @misc{BeckerJaegerBurger, author = {Becker, Christiane and J{\"a}ger, Klaus and Burger, Sven}, title = {Nanophotonics for Solar Energy}, series = {Sol. Energy Mater. Sol. Cells}, volume = {221}, journal = {Sol. Energy Mater. Sol. Cells}, doi = {10.1016/j.solmat.2020.110916}, pages = {110916}, language = {en} } @article{JaegerSutterHammerschmidtetal., author = {J{\"a}ger, Klaus and Sutter, Johannes and Hammerschmidt, Martin and Schneider, Philipp-Immanuel and Becker, Christiane}, title = {Prospects of light management in perovskite/silicon tandem solar cells}, series = {Nanophotonics}, volume = {10}, journal = {Nanophotonics}, doi = {10.1515/nanoph-2020-0674}, pages = {1991}, language = {en} } @article{ManleySegantiniAhibozetal., author = {Manley, Phillip and Segantini, Michele and Ahiboz, Doguscan and Hammerschmidt, Martin and Arnaoutakis, Georgios and MacQueen, Rowan W. and Burger, Sven and Becker, Christiane}, title = {Double-layer metasurface for enhanced photon up-conversion}, series = {APL Photon.}, volume = {6}, journal = {APL Photon.}, doi = {10.1063/5.0040839}, pages = {036103}, language = {en} } @article{WuerthManleyVoigtetal., author = {W{\"u}rth, Christian and Manley, Phillip and Voigt, Robert and Ahiboz, Doguscan and Becker, Christiane and Resch-Genger, Ute}, title = {Metasurface enhanced sensitized photon upconversion: towards highly efficient low power upconversion applications and nano-scale E-field sensors}, series = {Nano Lett.}, volume = {20}, journal = {Nano Lett.}, doi = {10.1021/acs.nanolett.0c02548}, pages = {6682}, language = {en} } @inproceedings{BarthRoderBrodoceanuetal., author = {Barth, Carlo and Roder, Sebastian and Brodoceanu, Daniel and Kraus, Tobias and Burger, Sven and Hammerschmidt, Martin and Schmidt, Frank and Becker, Christiane}, title = {Increased fluorescence of PbS quantum dots on photonic crystal slab structures}, series = {Proc. Europ. Opt. Soc. Ann. Meet. 2016 (EOSAM)}, booktitle = {Proc. Europ. Opt. Soc. Ann. Meet. 2016 (EOSAM)}, isbn = {978-1-5108-4796-5}, pages = {181}, language = {en} } @inproceedings{HammerschmidtBarthBurgeretal., author = {Hammerschmidt, Martin and Barth, Carlo and Burger, Sven and Becker, Christiane and Schmidt, Frank}, title = {Determining 2D photonic crystal geometries from reflectance spectra with a reduced basis method}, series = {Proc. Europ. Opt. Soc. Ann. Meet. 2016 (EOSAM)}, booktitle = {Proc. Europ. Opt. Soc. Ann. Meet. 2016 (EOSAM)}, isbn = {978-1-5108-4796-5}, pages = {281}, language = {en} } @article{BeckerBurgerJaeger, author = {Becker, Christiane and Burger, Sven and J{\"a}ger, Klaus}, title = {Nanooptische Simulationen f{\"u}r optoelektronische Anwendungen}, series = {Photonik: Fachzeitschrift f{\"u}r die optischen Technologien}, volume = {2019}, journal = {Photonik: Fachzeitschrift f{\"u}r die optischen Technologien}, number = {2}, issn = {1432-9778}, pages = {42 -- 45}, language = {de} } @inproceedings{ManleyJaegerTockhornetal., author = {Manley, Phillip and J{\"a}ger, Klaus and Tockhorn, Philipp and Burger, Sven and Albrecht, Steve and Becker, Christiane}, title = {Optimization of nanostructured high efficiency perovskite/c-Si tandem solar cells via numerical simulation}, series = {Proc. SPIE}, volume = {10731}, booktitle = {Proc. SPIE}, doi = {10.1117/12.2321240}, pages = {107310B}, language = {en} } @inproceedings{ManleyHammerschmidtBurgeretal., author = {Manley, Phillip and Hammerschmidt, Martin and Burger, Sven and Becker, Christiane}, title = {Nanophotonic Enhancement of Light Out-Coupling for Deep-UV LEDs}, series = {The 10th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META 2019)}, booktitle = {The 10th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META 2019)}, editor = {Zhoudi, Said and Topa, Antonio}, issn = {2429-1390}, pages = {745}, language = {en} } @inproceedings{BeckerManleyJaegeretal., author = {Becker, Christiane and Manley, Phillip and J{\"a}ger, Klaus and Eisenhauer, David and Sutter, Johannes and Albrecht, Steve and Zheng, Kaibo and Pullerits, Tonu and Burger, Sven}, title = {Nanophotonic enhanced perovskite-silicon solar cell devices}, series = {The 10th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META 2019)}, booktitle = {The 10th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META 2019)}, editor = {Zhoudi, Said and Topa, Antonio}, issn = {2429-1390}, pages = {858}, language = {en} } @article{BeckerBurgerBarthetal., author = {Becker, Christiane and Burger, Sven and Barth, Carlo and Manley, Phillip and J{\"a}ger, Klaus and Eisenhauer, David and K{\"o}ppel, Grit and Chabera, Pavel and Chen, Junsheng and Zheng, Kaibo and Pullerits, T{\"o}nu}, title = {Nanophotonic enhanced two-photon excited photoluminescence of perovskite quantum dots}, series = {ACS Photonics}, volume = {5}, journal = {ACS Photonics}, doi = {10.1021/acsphotonics.8b01199}, pages = {4668}, language = {en} } @inproceedings{JaegerManleyEisenhaueretal., author = {J{\"a}ger, Klaus and Manley, Phillip and Eisenhauer, David and Tockhorn, Philipp and Sutter, Johannes and Hammerschmidt, Martin and Burger, Sven and Albrecht, Steve and Becker, Christiane}, title = {Light management with sinusoidal nanotextures}, series = {Light, Energy and the Environment 2018}, booktitle = {Light, Energy and the Environment 2018}, doi = {10.1364/OSE.2018.OT5C.5}, pages = {OT5C.5}, language = {en} } @article{JaegerManleyChenetal., author = {J{\"a}ger, Klaus and Manley, Phillip and Chen, Duote and Tockhorn, Philipp and Eisenhauer, David and K{\"o}ppel, Grit and Hammerschmidt, Martin and Burger, Sven and Albrecht, Steve and Becker, Christiane}, title = {Antireflective nanotextures for monolithic perovskite-silicon tandem solar cells}, series = {Proc. SPIE}, volume = {10688}, journal = {Proc. SPIE}, doi = {10.1117/12.2306142}, pages = {106880A}, language = {en} } @misc{JaegerSutterSchneideretal., author = {J{\"a}ger, Klaus and Sutter, Johannes and Schneider, Philipp-Immanuel and Hammerschmidt, Martin and Becker, Christiane}, title = {Optical simulations of nanotextured perovskite/silicon tandem solar cell}, series = {HZB Data Service}, journal = {HZB Data Service}, doi = {10.5442/ND000005}, language = {en} } @article{AhibozAndresenManleyetal., author = {Ahiboz, Doguscan and Andresen, Elina and Manley, Phillip and Resch-Genger, Ute and W{\"u}rth, Christian and Becker, Christiane}, title = {Metasurface-Enhanced Photon Upconversion upon 1550 nm Excitation}, series = {Adv. Opt. Mater.}, volume = {9}, journal = {Adv. Opt. Mater.}, doi = {10.1002/adom.202101285}, pages = {2101285}, language = {en} } @article{TockhornSutterCruzetal., author = {Tockhorn, Philipp and Sutter, Johannes and Cruz, Alexandros and Wagner, Philipp and J{\"a}ger, Klaus and Yoo, Danbi and Lang, Felix and Grischek, Max and Li, Bor and Li, Jinzhao and Shargaieva, Oleksandra and Unger, Eva and Al-Ashouri, Amran and K{\"o}hnen, Eike and Stolterfoth, Martin and Neher, Dieter and Schlatmann, Rutger and Rech, Bernd and Stannowski, Bernd and Albrecht, Steve and Becker, Christiane}, title = {Nano-optical designs for high-efficiency monolithic perovskite-silicon tandem solar cells}, series = {Nat. Nanotechnol.}, volume = {17}, journal = {Nat. Nanotechnol.}, doi = {10.1038/s41565-022-01228-8}, pages = {1214}, language = {en} } @misc{HammerschmidtBarthPomplunetal., author = {Hammerschmidt, Martin and Barth, Carlo and Pomplun, Jan and Burger, Sven and Becker, Christiane and Schmidt, Frank}, title = {Reconstruction of photonic crystal geometries using a reduced basis method for nonlinear outputs}, issn = {1438-0064}, doi = {10.1117/12.2212482}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-57249}, abstract = {Maxwell solvers based on the hp-adaptive finite element method allow for accurate geometrical modeling and high numerical accuracy. These features are indispensable for the optimization of optical properties or reconstruction of parameters through inverse processes. High computational complexity prohibits the evaluation of the solution for many parameters. We present a reduced basis method (RBM) for the time-harmonic electromagnetic scattering problem allowing to compute solutions for a parameter configuration orders of magnitude faster. The RBM allows to evaluate linear and nonlinear outputs of interest like Fourier transform or the enhancement of the electromagnetic field in milliseconds. We apply the RBM to compute light-scattering off two dimensional photonic crystal structures made of silicon and reconstruct geometrical parameters.}, language = {en} } @inproceedings{JaegerSutterTockhornetal., author = {J{\"a}ger, Klaus and Sutter, Johannes and Tockhorn, Philipp and Hammerschmidt, Martin and Schneider, Philipp-Immanuel and Albrecht, Steve and Becker, Christiane}, title = {Improving perovskite/silicon tandem solar cells with optical simulations}, series = {Proc. SPIE}, volume = {PC12150}, booktitle = {Proc. SPIE}, doi = {10.1117/12.2621255}, pages = {PC1215001}, language = {en} } @inproceedings{AhibozAndresenManleyetal., author = {Ahiboz, Doguscan and Andresen, Elina and Manley, Phillip and Resch Genger, Ute and W{\"u}rth, Christian and Becker, Christiane}, title = {Enhanced Photon Upconversion Using Erbium-Doped Nanoparticles Interacting with Silicon Metasurfaces}, series = {IEEE 48th Photovoltaic Specialists Conference (PVSC)}, booktitle = {IEEE 48th Photovoltaic Specialists Conference (PVSC)}, doi = {10.1109/PVSC43889.2021.9518495}, pages = {2008 -- 2010}, language = {en} } @article{LopezFraguasBinkowskiBurgeretal., author = {Lopez-Fraguas, Eduardo and Binkowski, Felix and Burger, Sven and Hagedorn, Sylvia and Garcia-Camara, Braulio and Vergaz, Ricardo and Becker, Christiane and Manley, Phillip}, title = {Tripling the light extraction efficiency of a deep ultraviolet LED using a nanostructured p-contact}, series = {Sci. Rep.}, volume = {12}, journal = {Sci. Rep.}, doi = {10.1038/s41598-022-15499-7}, pages = {11480}, language = {en} } @inproceedings{TockhornSutterCruzetal., author = {Tockhorn, Philipp and Sutter, Johannes and Cruz, Alexandros and Wagner, Philipp and J{\"a}ger, Klaus and Yoo, Danbi and Lang, Felix and Grischek, Max and Li, Bor and Al-Ashouri, Amran and K{\"o}hnen, Eike and Stolterfoht, Martin and Neher, Dieter and Schlatmann, Rutger and Rech, Bernd and Stannowski, Bernd and Albrecht, Steve and Becker, Christiane}, title = {Nanooptically Enhanced Perovskite/Silicon Tandem Solar Cells with 29.80\% Power Conversion Efficiency}, series = {OSA Adv. Photonics}, booktitle = {OSA Adv. Photonics}, doi = {10.1364/NOMA.2022.JTu4H.2}, pages = {JTu4H.2}, language = {en} } @article{TillmannBlaesiBurgeretal., author = {Tillmann, Peter and Bl{\"a}si, Benedikt and Burger, Sven and Hammerschmidt, Martin and H{\"o}hn, Oliver and Becker, Christiane and J{\"a}ger, Klaus}, title = {Optimizing metal grating back reflectors for III-V-on-silicon multijunction solar cells}, series = {Opt. Express}, volume = {29}, journal = {Opt. Express}, doi = {10.1364/OE.426761}, pages = {22517}, language = {en} } @article{JaegerTillmannKatzetal., author = {J{\"a}ger, Klaus and Tillmann, Peter and Katz, Eugene A. and Becker, Christiane}, title = {Perovskite/silicon tandem solar cells: Effect of luminescent coupling and bifaciality}, series = {Sol. RRL}, volume = {5}, journal = {Sol. 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