@inproceedings{f29796ed83fb4f76bce2d324a884c9f1,
title = "Diagnosis of GaInAs multiple-quantum-well solar cells with Bragg reflectors via absolute electroluminescence",
abstract = " By using absolute EL measurement, we characterize current-dependent external radiative efficiency of GaInAs/GaAsP multiple-quantum-well (MQW) single-junction solar cells with and without a back distributed Bragg reflector (DBR). We quantified the internal radiative efficiency (η η ) under illuminated condition for analyzing their difference in photovoltaic performances. It was revealed that MQWs showed an advantage of improved qint compared with a bulk layer, and that a back DBR indeed improved conversion efficiency via double-pass absorption of sun light, but improvement via reduction of rear radiative emission loss toward substrate was small. Efficiency add-on via improved material quality, or qint, in the same structures was predicted. ",
keywords = "Absolute electroluminescence, Distributed Bragg reflector, GaAs, Quantum wells, Solar cells",
author = "Lin Zhu and Masahiro Yoshita and Jialing Tsai and Yichin Wang and Chungyu Hong and Guochung Ghi and Changsu Kim and Pei-Chen Yu and Hidefumi Akiyama",
year = "2017",
month = jan,
day = "1",
doi = "10.1109/PVSC.2017.8366257",
language = "English",
series = "2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1--4",
booktitle = "2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017",
address = "United States",
note = "null ; Conference date: 25-06-2017 Through 30-06-2017",
}