TY - JOUR
T1 - Detailed carrier recombination in lateral composition modulation structure
AU - Park, Kwangwook
AU - Ravindran, Sooraj
AU - Kang, Seokjin
AU - Min, Jung-Wook
AU - Hwang, Hyeong-Yong
AU - Jho, Young-Dahl
AU - Jo, Yong-Ryun
AU - Kim, Bong-Joong
AU - Kim, Jongmin
AU - Lee, Yong-Tak
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We thank Dr. Cheeleong Tan and Dr. Min-Su Park of Northwestern University for assistance in SiO2 deposition as well as helpful discussion.
PY - 2018/8/3
Y1 - 2018/8/3
N2 - Carrier recombination in lateral composition modulation (LCM) GaInP was probed in detail using time-resolved photoluminescence (TR-PL) and transmission electron microscopy (TEM). Upon SiO2 passivation, the time-transient decay of the PL peak was slower, and carrier lifetime was significantly enhanced from 25 to 230 ps for passivated LCM GaInP in comparison with that of bulk GaInP. This is due to the suppressed surface recombination of the irregular and wavy surface of LCM GaInP observed by TEM. Temperature-dependent TR-PL also showed a large decrease in carrier lifetime with an increase in temperature, indicating the dominance of Shockley–Read–Hall recombination due to the nonperiodicity of the LCM structure.
AB - Carrier recombination in lateral composition modulation (LCM) GaInP was probed in detail using time-resolved photoluminescence (TR-PL) and transmission electron microscopy (TEM). Upon SiO2 passivation, the time-transient decay of the PL peak was slower, and carrier lifetime was significantly enhanced from 25 to 230 ps for passivated LCM GaInP in comparison with that of bulk GaInP. This is due to the suppressed surface recombination of the irregular and wavy surface of LCM GaInP observed by TEM. Temperature-dependent TR-PL also showed a large decrease in carrier lifetime with an increase in temperature, indicating the dominance of Shockley–Read–Hall recombination due to the nonperiodicity of the LCM structure.
UR - http://hdl.handle.net/10754/630457
UR - http://iopscience.iop.org/article/10.7567/APEX.11.095801/meta
UR - http://www.scopus.com/inward/record.url?scp=85054300792&partnerID=8YFLogxK
U2 - 10.7567/apex.11.095801
DO - 10.7567/apex.11.095801
M3 - Article
SN - 1882-0778
VL - 11
SP - 095801
JO - Applied Physics Express
JF - Applied Physics Express
IS - 9
ER -