@inproceedings{WiesendangerBischoffJovanovetal.2014, author = {Wiesendanger, Samuel and Bischoff, Thomas and Jovanov, Vladislav and Knipp, Dietmar and Burger, Sven and Lederer, Falk and Rockstuhl, Carsten}, title = {Numerical investigations on the effects of film growth modes on light trapping in silicon thin film solar cells}, booktitle = {Light, Energy and the Environment}, publisher = {OSA}, doi = {10.1364/PV.2014.PF4C.4}, pages = {PF4C.4}, year = {2014}, language = {en} } @misc{HammerschmidtDoepkingBurgeretal.2017, author = {Hammerschmidt, Martin and D{\"o}pking, Sandra and Burger, Sven and Matera, Sebastian}, title = {Field Heterogeneities and their Impact on Photocatalysis: Combining optical and kinetic Monte Carlo Simulations on the Nanoscale}, issn = {1438-0064}, doi = {10.1021/acs.jpcc.9b11469}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-63690}, year = {2017}, abstract = {Gaining insights into the working principles of photocatalysts on an atomic scale is a challenging task. The obviously high complexity of the reaction mechanism involving photo-excited electrons and holes is one reason. Another complicating aspect is that the electromagnetic field, driving photocatalysis, is not homogeneous on a nanoscale level for particle based catalysts as it is influenced by the particle's shape and size. We present a simple model, inspired by the CO2 reduction on titania anatase, which addresses the impact of these heterogeneities on the photocatalytic kinetics by combining kinetic Monte Carlo with electromagnetic wave simulations. We find that average activity and especially efficiency might differ significantly between different particles. Moreover, we find sizable variation of the catalytic activity on a single facet of a nanocrystal. Besides this quantitative heterogeneity, the coverage situation in general changes laterally on this facet and we observe a concomitant change of the rate-determining steps. This heterogeneity on all levels of photocatalytic activity is masked in experimental studies, where only the spatially averaged activity can be addressed. Microkinetic models based on experimental findings might therefore not represent the true micro- scopic behavior, and mechanistic conclusion drawn from these need to be handled with care.}, language = {en} } @inproceedings{JaegerKoeppelHammerschmidtetal.2017, 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}, booktitle = {29th Workshop on Quantum Solar Energy Conversion - (QUANTSOL)}, year = {2017}, language = {en} } @misc{HammerschmidtWeiserSantiagoetal.2017, author = {Hammerschmidt, Martin and Weiser, Martin and Santiago, Xavier Garcia and Zschiedrich, Lin and Bodermann, Bernd and Burger, Sven}, title = {Quantifying parameter uncertainties in optical scatterometry using Bayesian inversion}, issn = {1438-0064}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-64704}, year = {2017}, abstract = {We present a Newton-like method to solve inverse problems and to quantify parameter uncertainties. We apply the method to parameter reconstruction in optical scatterometry, where we take into account a priori information and measurement uncertainties using a Bayesian approach. Further, we discuss the influence of numerical accuracy on the reconstruction result.}, language = {en} } @inproceedings{GregersenRosenkrantzdeLassonHagedornFrandsenetal.2017, author = {Gregersen, Niels and Rosenkrantz de Lasson, Jakob and Hagedorn Frandsen, Lars and H{\"a}yrynen, Teppo and Lavrinenko, Andrei and Moerk, Jesper and Wang, Fengwen and Sigmund, Ole and Kim, Oleksiy S. and Breinbjerg, Olav and Ivinskaya, Aliaksandra and Gutsche, Philipp and Burger, Sven}, title = {Benchmarking five computational methods for analyzing large photonic crystal membrane cavities}, booktitle = {Numerical Simulation of Optoelectronic Devices (NUSOD)}, doi = {10.1109/NUSOD.2017.8010005}, pages = {89}, year = {2017}, language = {en} } @incollection{LedentsovJrShchukinLedentsovJretal.2016, author = {Ledentsov, Jr., Nikolay and Shchukin, Vitaly and Ledentsov, Jr., Nikolay and Kropp, J{\"o}rg-R. and Burger, Sven and Schmidt, Frank}, title = {New Generation of Vertical-Cavity Surface-Emitting Lasers for Optical Interconnects}, booktitle = {Future Trends in Microelectronics: Journey into the Unknown}, publisher = {John Wiley \& Sons}, doi = {10.1002/9781119069225.ch3-5}, year = {2016}, language = {en} } @article{JaegerKoeppelEisenhaueretal.2017, 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}, volume = {10356}, journal = {Proc. SPIE}, doi = {10.1117/12.2273994}, pages = {103560F}, year = {2017}, language = {en} } @inproceedings{NovitskyRosenkrantzdeLassonHagedornFrandsenetal.2017, author = {Novitsky, Andrey and Rosenkrantz de Lasson, Jakob and Hagedorn Frandsen, Lars and Gutsche, Philipp and Burger, Sven and Kim, Oleksiy S. and Breinbjerg, Olav and Ivinskaya, Aliaksandra and Wang, Fengwen and Sigmund, Ole and H{\"a}yrynen, Teppo and Lavrinenko, Andrei and M{\o}rk, Jesper and Gregersen, Niels}, title = {Comparison of five computational methods for computing Q factors in photonic crystal membrane cavities}, booktitle = {19th International Conference on Transparent Optical Networks (ICTON)}, doi = {10.1109/ICTON.2017.8024813}, year = {2017}, language = {en} } @article{BarthRoderBrodoceanuetal.2017, 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}, volume = {111}, journal = {Appl. Phys. Lett.}, arxiv = {http://arxiv.org/abs/1708.06566}, doi = {10.1063/1.4995229}, pages = {031111}, year = {2017}, language = {en} } @article{HammerschmidtWeiserSantiagoetal.2017, author = {Hammerschmidt, Martin and Weiser, Martin and Santiago, Xavier Garcia and Zschiedrich, Lin and Bodermann, Bernd and Burger, Sven}, title = {Quantifying parameter uncertainties in optical scatterometry using Bayesian inversion}, volume = {10330}, journal = {Proc. SPIE}, arxiv = {http://arxiv.org/abs/1707.08467}, doi = {10.1117/12.2270596}, pages = {1033004}, year = {2017}, language = {en} }