@article{DoehringSchoenhenseHeinzmann1992, author = {D{\"o}hring, Thorsten and Sch{\"o}nhense, Gerd and Heinzmann, Ulrich}, title = {A circular polariser for the region of windowless VUV radiation}, series = {Measurement Science and Technology}, volume = {3}, journal = {Measurement Science and Technology}, number = {1}, pages = {91 -- 97}, year = {1992}, subject = {Vakuumultraviolett}, language = {en} } @article{OschinowoForchelGruetzmacheretal.1992, author = {Oschinowo, John and Forchel, Alfred and Gr{\"u}tzmacher, Detlev and Stollenwerk, Manfred and Heuken, Michael and Heime, Klaus}, title = {Photoluminescence study of interdiffusion in In0,53Ga0,47/As/InP surface quantum wells}, series = {Applied Physics Letters}, volume = {60}, journal = {Applied Physics Letters}, number = {21}, pages = {2660 -- 2662}, year = {1992}, abstract = {We have investigated the thermal stability and interdiffusion of In0.53Ga0.47As/InP surface quantum wells. In these structures the optically active InGaAs layer is bounded on one side by vacuum and on the other side by InP. We obtain well-defined photoluminescence emission spectra with high intensity. After rapid thermal annealing at temperatures between 500 and 900 °C (annealing time 1 min) we observe strong emission energy shifts of up to 316 meV. By using a simple model of ion intermixing we estimate large interdiffusion coefficients (e.g., 1.7×10-14 cm2 s-1 for T=900 °C) and an activation energy of 1.3 eV for the surface quantum wells.}, subject = {Photolumineszenz}, language = {en} } @article{ShiGruetzmacherStollenwerketal.1992, author = {Shi, Chang-Xin and Gr{\"u}tzmacher, Detlev and Stollenwerk, Manfred and Wang, Qing-Kang and Heime, Klaus}, title = {High-performance undoped InP/n-InP/GaAs MSM photodetectors grown by LP-MOVPE}, series = {IEEE Transactions on Electron Devices}, volume = {39}, journal = {IEEE Transactions on Electron Devices}, number = {5}, publisher = {IEEE}, pages = {1028 -- 1031}, year = {1992}, subject = {Indiumarsenid}, language = {en} } @article{MeyerHardtdegenGruetzmacheretal.1992, author = {Meyer, R. and Hardtdegen, Hilde and Gr{\"u}tzmacher, Detlev and Carius, R. and Stollenwerk, Manfred and Balk, Peter}, title = {Optical and structural properties of MOVPE grown GaxIn1-xAs/InP strained multiple quantum well structures}, series = {Journal of Electronic Materials}, volume = {21}, journal = {Journal of Electronic Materials}, number = {3}, pages = {293 -- 298}, year = {1992}, abstract = {This paper presents a study of the structural and optical properties of strained GaInAs/ InP multiple quantum well (MQW) structures fabricated by LP-MOVPE. The composition of the Ga x In1-x As films ranged fromx = 0.17 tox = 1.0 and was determined by sputtered neutral mass spectrometry (SNMS) on thick layers. The structures of the MQW samples with well widths from 1.5 to 5 nm were investigated by high resolution x-ray diffraction (HR-XRD). Simulations of the diffraction patterns showed that transition layers of approximately 2 monolayer (ML) thickness with high lattice mismatch exist at the interfaces. Photoluminescence (PL) measurements indicate well widths of a multiple of a monolayer with local variations of one monolayer. The PL peak energies vary smoothly with the Ga concentration. These results were confirmed by optical absorption measurements.}, subject = {Galliumarsenid}, language = {en} } @article{OschinowoForchelDreybrodtetal.1992, author = {Oschinowo, John and Forchel, Alfred and Dreybrodt, J{\"o}rg and Emmerling, Monika and Gyuro, Imre and Speier, Peter and Gr{\"u}tzmacher, Detlev and Stollenwerk, Manfred}, title = {Lateral thermal stability modulation for the definition of InGaAs/InP wires}, series = {Microelectronic Engineering}, volume = {17}, journal = {Microelectronic Engineering}, number = {1-4}, pages = {505 -- 508}, year = {1992}, abstract = {We have investigated a novel technique for the definition of semiconductor wires. By the selective local removal of the InP top barrier layer wire patterns in which the top material varies between InP and InGaAs are formed from an InGaAs/InP quantum well. In a subsequent annealing step the top InGaAs layer shows substantially stronger interdiffusion than the InP covered regions (wires). By using luminescence spectroscopy we show that this defectfree enhanced interdiffusion can be used to obtain a lateral energy barrier.}, subject = {Indiumarsenid}, language = {en} } @article{MichaeliTelgenbuescherLeiberetal.1992, author = {Michaeli, Walter and Telgenb{\"u}scher, Klaus and Leiber, J{\"o}rn and Stollenwerk, Manfred}, title = {Plasmapolymerisation zur Veredelung von Kunststoffoberfl{\"a}chen}, series = {D{\"u}nne Schichten}, volume = {1992}, journal = {D{\"u}nne Schichten}, number = {3}, pages = {34 -- 38}, year = {1992}, subject = {Plasmapolymerisation}, language = {de} } @article{MichaeliLeiberTelgenbuescheretal.1992, author = {Michaeli, Walter and Leiber, J{\"o}rn and Telgenb{\"u}scher, Klaus and Stollenwerk, Manfred}, title = {Plasmapolymerisation: Kunststoffe beschichten}, series = {Industrieanzeiger}, volume = {1992}, journal = {Industrieanzeiger}, number = {43}, pages = {58 -- 60}, year = {1992}, subject = {Plasmapolymerisation}, language = {de} } @inproceedings{StollenwerkMichaeliTelgenbuescheretal.1992, author = {Stollenwerk, Manfred and Michaeli, Walter and Telgenb{\"u}scher, Klaus and Leiber, J{\"o}rn and Londschein, Martin}, title = {Verbesserung von Verbundwerkstoffen durch Plasmabehandlung der Verst{\"a}rkungsfasern}, year = {1992}, subject = {Faserverst{\"a}rkter Kunststoff}, language = {de} } @book{DluhoschFreytagKrueger1992, author = {Dluhosch, Barbara and Freytag, Andreas and Kr{\"u}ger, Malte}, title = {Leistungsbilanzsalden und internationale Wettbewerbsf{\"a}higkeit}, publisher = {Institut f{\"u}r Wirtschaftspolitik an der Universit{\"a}t K{\"o}ln}, address = {K{\"o}ln}, pages = {IX, 266 Seiten}, year = {1992}, subject = {Internationale Wettbewerbsf{\"a}higkeit}, language = {de} } @article{Krueger1992, author = {Kr{\"u}ger, Malte}, title = {Was dem EWS geschehen ist}, series = {Wirtschaftsdienst}, volume = {72}, journal = {Wirtschaftsdienst}, number = {10}, pages = {516 -- 519}, year = {1992}, subject = {Europ{\"a}isches W{\"a}hrungssystem}, language = {de} }