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• W2303371945 abstract "In this thesis the luminescence properties of highly doped semiconductors are studied with focus on degenerately n-doped InP. It is demonstrated how photoluminescence measurements on degenerately doped semiconductors allow an estimation of the doping concentration without need for electrical contacts. The degenerate doping can furthermore reveal the conduction band structure for energies higher than the bandgap, which is exploited to experimentally support the existence of a theoretically predicted second conductionband minimum in wurtzite InP.Excitation energy dependence measurements reveal band-to-band absorption for photon energies much lower than the Fermi energy. That absorption causes not only downconverted photoluminescence with photon energies lower than the excitation energy, but also upconverted photoluminescence with photon energies higher than the absorbed laser photon. From the results of the detailed study of this novel upconversion mechanism in degenerately n-doped InP nanowires and bulk InP we propose the following explanation:An elevated electron gas temperature in degenerately doped semiconductors allows absorption of photon with energies much lower than the Fermi energy. Band-to-band absorption of photons with energies lower than the Fermi energy excites holes with k-values lower than kF and scattering of the photexcited holes to higher k-values allows k-conserving radiative recombinations with photon energies higher than the energy of the absorbed photon. Similar upconversion luminescence is observed for degenerately n-dopedbulk GaAs and degenerately p-doped GaAs nanowires, which suggest thatsimilar photon upconversion could be observed in many degenerately doped direct band semiconductors. The three most important findings about degenerately doped direct band semiconductors are. There is significant photon upconversion for excitation energies between Eg and EF. The charge carrier recombination rate is higher than, or comparable to the scattering rate of the minority carriers. And, the radiative recombination is strongly dominated by k-conserving vertical transitions in contrast to the common assumption of relaxation of the k-selection rule in degenerately doped material." @default.
• W2303371945 created "2016-06-24" @default.
• W2303371945 creator A5014812020 @default.
• W2303371945 date "2016-01-01" @default.
• W2303371945 modified "2023-09-23" @default.
• W2303371945 title "Photon Upconversion in Heavily Doped Semiconductors" @default.
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• W2303371945 cites W1969602772 @default.
• W2303371945 cites W1972783664 @default.
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• W2303371945 cites W1973841191 @default.
• W2303371945 cites W1977918640 @default.
• W2303371945 cites W1978638905 @default.
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• W2303371945 cites W1989045586 @default.
• W2303371945 cites W1992150010 @default.
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• W2303371945 cites W2031958427 @default.
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• W2303371945 cites W2038668303 @default.
• W2303371945 cites W2042404746 @default.
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• W2303371945 hasPublicationYear "2016" @default.
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