Observation of unusual optical transitions in thin-film Cu(In, Ga)Se2solar cells

Yu Kuang Liao; Shou Yi Kuo; Woei Tyng Lin; Fang I. Lai; Dan Hua Hsieh; Min An Tsai; Shih Chen Chen; Ding Wen Chiou; Jen Chuang Chang; Kaung-Hsiung Wu; Shun-Jen Cheng; Hao-Chung Kuo

doi:10.1364/OE.20.00A836

Observation of unusual optical transitions in thin-film Cu(In, Ga)Se₂solar cells

Yu Kuang Liao
, Shou Yi Kuo
, Woei Tyng Lin
, Fang I. Lai
, Dan Hua Hsieh
, Min An Tsai
, Shih Chen Chen
, Ding Wen Chiou
, Jen Chuang Chang
, Kaung-Hsiung Wu
, Shun-Jen Cheng
, Hao-Chung Kuo

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

In this paper, we examine photoluminescence spectra of Cu(In, Ga)Se₂(CIGS) via temperature-dependent and power-dependent photoluminescence (PL). Donor-acceptor pair (DAP) transition, near-band-edge transition were identified by their activation energies. S-shaped displacement of peak position was observed and was attributed to carrier confinement caused by potential fluctuation. This coincides well with the obtained activation energy at low temperature. We also present a model for transition from V_Seto V_Inand to V_Cuwhich illustrates competing mechanisms between DAPs recombinations.

Original language	English
Pages (from-to)	A836-A842
Journal	Optics Express
Volume	20
Issue number	106
DOIs	https://doi.org/10.1364/OE.20.00A836
State	Published - 5 Nov 2012

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title = "Observation of unusual optical transitions in thin-film Cu(In, Ga)Se2solar cells",

abstract = "In this paper, we examine photoluminescence spectra of Cu(In, Ga)Se2(CIGS) via temperature-dependent and power-dependent photoluminescence (PL). Donor-acceptor pair (DAP) transition, near-band-edge transition were identified by their activation energies. S-shaped displacement of peak position was observed and was attributed to carrier confinement caused by potential fluctuation. This coincides well with the obtained activation energy at low temperature. We also present a model for transition from VSeto VInand to VCuwhich illustrates competing mechanisms between DAPs recombinations.",

author = "Liao, \{Yu Kuang\} and Kuo, \{Shou Yi\} and Lin, \{Woei Tyng\} and Lai, \{Fang I.\} and Hsieh, \{Dan Hua\} and Tsai, \{Min An\} and Chen, \{Shih Chen\} and Chiou, \{Ding Wen\} and Chang, \{Jen Chuang\} and Kaung-Hsiung Wu and Shun-Jen Cheng and Hao-Chung Kuo",

year = "2012",

month = nov,

day = "5",

doi = "10.1364/OE.20.00A836",

language = "English",

volume = "20",

pages = "A836--A842",

journal = "Optics Express",

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TY - JOUR

T1 - Observation of unusual optical transitions in thin-film Cu(In, Ga)Se2solar cells

AU - Liao, Yu Kuang

AU - Kuo, Shou Yi

AU - Lin, Woei Tyng

AU - Lai, Fang I.

AU - Hsieh, Dan Hua

AU - Tsai, Min An

AU - Chen, Shih Chen

AU - Chiou, Ding Wen

AU - Chang, Jen Chuang

AU - Wu, Kaung-Hsiung

AU - Cheng, Shun-Jen

AU - Kuo, Hao-Chung

PY - 2012/11/5

Y1 - 2012/11/5

N2 - In this paper, we examine photoluminescence spectra of Cu(In, Ga)Se2(CIGS) via temperature-dependent and power-dependent photoluminescence (PL). Donor-acceptor pair (DAP) transition, near-band-edge transition were identified by their activation energies. S-shaped displacement of peak position was observed and was attributed to carrier confinement caused by potential fluctuation. This coincides well with the obtained activation energy at low temperature. We also present a model for transition from VSeto VInand to VCuwhich illustrates competing mechanisms between DAPs recombinations.

AB - In this paper, we examine photoluminescence spectra of Cu(In, Ga)Se2(CIGS) via temperature-dependent and power-dependent photoluminescence (PL). Donor-acceptor pair (DAP) transition, near-band-edge transition were identified by their activation energies. S-shaped displacement of peak position was observed and was attributed to carrier confinement caused by potential fluctuation. This coincides well with the obtained activation energy at low temperature. We also present a model for transition from VSeto VInand to VCuwhich illustrates competing mechanisms between DAPs recombinations.

UR - https://www.scopus.com/pages/publications/84869075441

U2 - 10.1364/OE.20.00A836

DO - 10.1364/OE.20.00A836

M3 - Article

AN - SCOPUS:84869075441

SN - 1094-4087

VL - 20

SP - A836-A842

JO - Optics Express

JF - Optics Express

IS - 106

ER -

Observation of unusual optical transitions in thin-film Cu(In, Ga)Se₂solar cells

Abstract

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