Open AccessExciton tunnelling in (CdZnTe,ZnSeTe)/ZnTe complex quantum wells
Author(s) -
Jin Hua,
Liu Shu,
Zhenzhong Zhang,
Ligong Zhang,
Zhong Zheng,
Dezhen Shen
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.6627
Subject(s) - quantum tunnelling , exciton , quantum well , photoluminescence , spectral line , materials science , absorption (acoustics) , condensed matter physics , physics , molecular physics , optoelectronics , optics , quantum mechanics , laser , composite material
A new type of (CdZnTe,ZnSeTe)/ZnTe complex quantum wells was designed. Exciton tunneling process was investigated in this complex structure using absorption spectra, photoluminescence (PL) spectra and pump-probe measurements. The exciton decay time was measured in CdZnTe/ZnTe quantum well layers and ZnSeTe/ZnTe quantum well layers, respectively. And a fast exciton tunneling from CdZnTe/ZnTe quantum well to ZnSeTe/ZnTe quantum well was observed by transient differential trans mission. The tunneling time is 5.5ps.