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Population dynamics and dephasing of excitons and electron-hole pairs in polytype wurtzite/zinc-blende InP nanowires

Gao, Qiang; Tan, Hoe; Jagadish, Chennupati; Wagner, H.P.; Kaveh, M; Langbein, Wolfgang W.


We investigated the dephasing and population dynamics of electron-hole (e-h) pairs and excitons in vapor-liquid-solid grown polytype wurtzite/zinc-blende (WZ/ZB) InP nanowires (NWs) using heterodyne four-wave mixing (HFWM) in three-beam configuration at temperatures from 80 to 270 K. The photon energy of the 100 fs excitation pulses was varied to predominantly excite either mobile excitons and e-h pairs or indirect WZ/ZB excitons. The population dynamics reveal a multiexponential decay with...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Physical Review B
DOI: 10.1103/PhysRevB.95.045305


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