Effects of compression and controlled selenization on powder-fabricated Cu(In,Ga)Se                         2                          thin films

Bong Geun Song; Hak Young Ahn; Bo In Park; Hyung Ho Park; Byeong Kwon Ju; Seung Yong Lee; Jong Ku Park; So Hye Cho

doi:10.1016/j.apsusc.2018.12.196

Effects of compression and controlled selenization on powder-fabricated Cu(In,Ga)Se ₂ thin films

Bong Geun Song
, Hak Young Ahn
, Bo In Park
, Hyung Ho Park
, Byeong Kwon Ju
, Seung Yong Lee
, Jong Ku Park^*
, So Hye Cho

^*Corresponding author for this work

Department of Semiconductor Science and Technology

Korea Institute of Science and Technology
Yonsei University
Korea University
Korea Advanced Institute of Science and Technology
University of Science and Technology UST

Research output: Contribution to journal › Journal article › peer-review

6 Scopus citations

Abstract

Cu(In,Ga)Se ₂ thin films have been used as a light absorbing layer in high-efficiency solar cells. Among many methods, the powder process for fabricating Cu(In,Ga)Se ₂ thin films is advantageous, due to its simplicity and minimal usage of materials. However, Cu(In,Ga)Se ₂ layers produced by the powder process often result in high porosity and small grain sizes, which has been a significant barrier to wide application. In this report, we demonstrate that simple compression of the Cu(In,Ga)S ₂ powder coat and a cost-efficient selenization using a mixture of Se and Al ₂ O ₃ can reduce porosity and enlarge the grain size. It is surmised that improved particle packing density in the powder coats, in addition to sintering with a steady supply of Se vapor, synergistically enhances highly sintered Cu(In,Ga)Se ₂ thin films.

Original language	English
Pages (from-to)	158-161
Number of pages	4
Journal	Applied Surface Science
Volume	475
DOIs	https://doi.org/10.1016/j.apsusc.2018.12.196
State	Published - 2019.05.1

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Cu(In
Ga)Se
Light absorbing layer
Photovoltaic materials
Powder process
Thin films

Access to Document

10.1016/j.apsusc.2018.12.196

Cite this

@article{1fa7030e1c8442268bf434a81fb5e578,

title = "Effects of compression and controlled selenization on powder-fabricated Cu(In,Ga)Se 2 thin films",

abstract = " Cu(In,Ga)Se 2 thin films have been used as a light absorbing layer in high-efficiency solar cells. Among many methods, the powder process for fabricating Cu(In,Ga)Se 2 thin films is advantageous, due to its simplicity and minimal usage of materials. However, Cu(In,Ga)Se 2 layers produced by the powder process often result in high porosity and small grain sizes, which has been a significant barrier to wide application. In this report, we demonstrate that simple compression of the Cu(In,Ga)S 2 powder coat and a cost-efficient selenization using a mixture of Se and Al 2 O 3 can reduce porosity and enlarge the grain size. It is surmised that improved particle packing density in the powder coats, in addition to sintering with a steady supply of Se vapor, synergistically enhances highly sintered Cu(In,Ga)Se 2 thin films.",

keywords = "Cu(In, Ga)Se, Light absorbing layer, Photovoltaic materials, Powder process, Thin films",

author = "Song, \{Bong Geun\} and Ahn, \{Hak Young\} and Park, \{Bo In\} and Park, \{Hyung Ho\} and Ju, \{Byeong Kwon\} and Lee, \{Seung Yong\} and Park, \{Jong Ku\} and Cho, \{So Hye\}",

note = "Publisher Copyright: {\textcopyright} 2018",

year = "2019",

month = may,

day = "1",

doi = "10.1016/j.apsusc.2018.12.196",

language = "English",

volume = "475",

pages = "158--161",

journal = "Applied Surface Science",

issn = "0169-4332",

}

TY - JOUR

T1 - Effects of compression and controlled selenization on powder-fabricated Cu(In,Ga)Se 2 thin films

AU - Song, Bong Geun

AU - Ahn, Hak Young

AU - Park, Bo In

AU - Park, Hyung Ho

AU - Ju, Byeong Kwon

AU - Lee, Seung Yong

AU - Park, Jong Ku

AU - Cho, So Hye

PY - 2019/5/1

Y1 - 2019/5/1

N2 - Cu(In,Ga)Se 2 thin films have been used as a light absorbing layer in high-efficiency solar cells. Among many methods, the powder process for fabricating Cu(In,Ga)Se 2 thin films is advantageous, due to its simplicity and minimal usage of materials. However, Cu(In,Ga)Se 2 layers produced by the powder process often result in high porosity and small grain sizes, which has been a significant barrier to wide application. In this report, we demonstrate that simple compression of the Cu(In,Ga)S 2 powder coat and a cost-efficient selenization using a mixture of Se and Al 2 O 3 can reduce porosity and enlarge the grain size. It is surmised that improved particle packing density in the powder coats, in addition to sintering with a steady supply of Se vapor, synergistically enhances highly sintered Cu(In,Ga)Se 2 thin films.

AB - Cu(In,Ga)Se 2 thin films have been used as a light absorbing layer in high-efficiency solar cells. Among many methods, the powder process for fabricating Cu(In,Ga)Se 2 thin films is advantageous, due to its simplicity and minimal usage of materials. However, Cu(In,Ga)Se 2 layers produced by the powder process often result in high porosity and small grain sizes, which has been a significant barrier to wide application. In this report, we demonstrate that simple compression of the Cu(In,Ga)S 2 powder coat and a cost-efficient selenization using a mixture of Se and Al 2 O 3 can reduce porosity and enlarge the grain size. It is surmised that improved particle packing density in the powder coats, in addition to sintering with a steady supply of Se vapor, synergistically enhances highly sintered Cu(In,Ga)Se 2 thin films.

KW - Cu(In

KW - Ga)Se

KW - Light absorbing layer

KW - Photovoltaic materials

KW - Powder process

KW - Thin films

UR - https://www.scopus.com/pages/publications/85059233184

U2 - 10.1016/j.apsusc.2018.12.196

DO - 10.1016/j.apsusc.2018.12.196

M3 - Journal article

AN - SCOPUS:85059233184

SN - 0169-4332

VL - 475

SP - 158

EP - 161

JO - Applied Surface Science

JF - Applied Surface Science

ER -