A simple chemical route for composition graded Cu(In,Ga)S2 thin film solar cells: Multi-stage paste coating

Se Jin Park; Hee Sang An; Ji Eun Kim; Hyo Sang Jeon; Sam S. Yoon; Yun Jeong Hwang; Jihyun Kim; Dong Wook Kim; Byoung Koun Min

doi:10.1039/c5ra20751g

A simple chemical route for composition graded Cu(In,Ga)S₂ thin film solar cells: Multi-stage paste coating

Se Jin Park, Hee Sang An, Ji Eun Kim, Hyo Sang Jeon, Sam S. Yoon, Yun Jeong Hwang, Jihyun Kim, Dong Wook Kim, Byoung Koun Min

Department of Physics

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

7 Scopus citations

Abstract

In order to realize the modulation of band-gap profile in low-cost and printable CuIn_xGa_1-xS₂ thin-film solar cells, a simple chemical route, namely a multi-stage paste coating method, was developed. In particular, with this method, multiple coatings with two precursor solution pastes with different compositions were applied. Elemental analysis techniques confirmed the formation of three different graded Ga distributions (front, back, and front-and-back gradient) throughout the absorber films depending on the coating sequence with two different pastes. The back gradient cell showed the largest power conversion efficiency of 7.29%, which was almost two times larger than those of the non-graded cells.

Original language	English
Pages (from-to)	103439-103444
Number of pages	6
Journal	RSC Advances
Volume	5
Issue number	125
DOIs	https://doi.org/10.1039/c5ra20751g
State	Published - 26 Nov 2015

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry.

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10.1039/c5ra20751g

Cite this

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title = "A simple chemical route for composition graded Cu(In,Ga)S2 thin film solar cells: Multi-stage paste coating",

abstract = "In order to realize the modulation of band-gap profile in low-cost and printable CuInxGa1-xS2 thin-film solar cells, a simple chemical route, namely a multi-stage paste coating method, was developed. In particular, with this method, multiple coatings with two precursor solution pastes with different compositions were applied. Elemental analysis techniques confirmed the formation of three different graded Ga distributions (front, back, and front-and-back gradient) throughout the absorber films depending on the coating sequence with two different pastes. The back gradient cell showed the largest power conversion efficiency of 7.29%, which was almost two times larger than those of the non-graded cells.",

author = "Park, {Se Jin} and An, {Hee Sang} and Kim, {Ji Eun} and Jeon, {Hyo Sang} and Yoon, {Sam S.} and Hwang, {Yun Jeong} and Jihyun Kim and Kim, {Dong Wook} and Min, {Byoung Koun}",

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T1 - A simple chemical route for composition graded Cu(In,Ga)S2 thin film solar cells

T2 - Multi-stage paste coating

AU - Park, Se Jin

AU - An, Hee Sang

AU - Kim, Ji Eun

AU - Jeon, Hyo Sang

AU - Yoon, Sam S.

AU - Hwang, Yun Jeong

AU - Kim, Jihyun

AU - Kim, Dong Wook

AU - Min, Byoung Koun

PY - 2015/11/26

Y1 - 2015/11/26

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