Effect of selenization on local current and surface potential of sputtered Cu2ZnSn(S, Se)4 thin-films with 8% conversion efficiency

Gee Yeong Kim; Ah Reum Jeong; Ju Ri Kim; William Jo; D. H. Kim; D. K. Hwang; S. J. Sung; J. K. Kang

doi:10.1109/PVSC.2013.6744173

Effect of selenization on local current and surface potential of sputtered Cu₂ZnSn(S, Se)₄ thin-films with 8% conversion efficiency

Gee Yeong Kim, Ah Reum Jeong, Ju Ri Kim, William Jo, D. H. Kim, D. K. Hwang, S. J. Sung, J. K. Kang

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Cu₂ZnSn(S, Se)₄ (CZTSSe) is emerged as a promising material because of non-toxic, inexpensive and earth abundant more than Cu(In, Ga)Se₂. The highest conversion efficiency of CZTSSe is 11.1 % at IBM based on hydrazine process [1]. We have achieved CZTSSe thin-film solar cell 8% conversion efficiency by sputtering process. CZTSSe thin-films show different efficiency depending on selenization process. Depending on the different selenization process, conversion efficiencies in each sample are definitely distinguished from 8.06 to 3.17%. We investigated local electrical properties on these samples. The local surface potential is also critically different, which is ∼ 200 mV on 8.06% film and ∼ 70 mV on 3.17% film. From these results, we can suggest that selenization process can affect to local electrical characteristic as well as improving solar cell performances.

Original language	English
Title of host publication	39th IEEE Photovoltaic Specialists Conference, PVSC 2013
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	383-385
Number of pages	3
ISBN (Print)	9781479932993
DOIs	https://doi.org/10.1109/PVSC.2013.6744173
State	Published - 2013
Event	39th IEEE Photovoltaic Specialists Conference, PVSC 2013 - Tampa, FL, United States Duration: 16 Jun 2013 → 21 Jun 2013

Publication series

Name	Conference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)	0160-8371

Conference

Conference	39th IEEE Photovoltaic Specialists Conference, PVSC 2013
Country/Territory	United States
City	Tampa, FL
Period	16/06/13 → 21/06/13

Keywords

CZTSSe
Carrier transport
Scanning probe microscopy
Selenization
Work function

Access to Document

10.1109/PVSC.2013.6744173

Cite this

Kim, G. Y., Jeong, A. R., Kim, J. R., Jo, W., Kim, D. H., Hwang, D. K., Sung, S. J., & Kang, J. K. (2013). Effect of selenization on local current and surface potential of sputtered Cu₂ZnSn(S, Se)₄ thin-films with 8% conversion efficiency. In 39th IEEE Photovoltaic Specialists Conference, PVSC 2013 (pp. 383-385). Article 6744173 (Conference Record of the IEEE Photovoltaic Specialists Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2013.6744173

Kim, Gee Yeong ; Jeong, Ah Reum ; Kim, Ju Ri et al. / Effect of selenization on local current and surface potential of sputtered Cu₂ZnSn(S, Se)₄ thin-films with 8% conversion efficiency. 39th IEEE Photovoltaic Specialists Conference, PVSC 2013. Institute of Electrical and Electronics Engineers Inc., 2013. pp. 383-385 (Conference Record of the IEEE Photovoltaic Specialists Conference).

@inproceedings{f9b685ae83bc4d20a18bbb1b21329690,

title = "Effect of selenization on local current and surface potential of sputtered Cu2ZnSn(S, Se)4 thin-films with 8% conversion efficiency",

abstract = "Cu2ZnSn(S, Se)4 (CZTSSe) is emerged as a promising material because of non-toxic, inexpensive and earth abundant more than Cu(In, Ga)Se2. The highest conversion efficiency of CZTSSe is 11.1 % at IBM based on hydrazine process [1]. We have achieved CZTSSe thin-film solar cell 8% conversion efficiency by sputtering process. CZTSSe thin-films show different efficiency depending on selenization process. Depending on the different selenization process, conversion efficiencies in each sample are definitely distinguished from 8.06 to 3.17%. We investigated local electrical properties on these samples. The local surface potential is also critically different, which is ∼ 200 mV on 8.06% film and ∼ 70 mV on 3.17% film. From these results, we can suggest that selenization process can affect to local electrical characteristic as well as improving solar cell performances.",

keywords = "CZTSSe, Carrier transport, Scanning probe microscopy, Selenization, Work function",

author = "Kim, {Gee Yeong} and Jeong, {Ah Reum} and Kim, {Ju Ri} and William Jo and Kim, {D. H.} and Hwang, {D. K.} and Sung, {S. J.} and Kang, {J. K.}",

year = "2013",

doi = "10.1109/PVSC.2013.6744173",

language = "English",

isbn = "9781479932993",

series = "Conference Record of the IEEE Photovoltaic Specialists Conference",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "383--385",

booktitle = "39th IEEE Photovoltaic Specialists Conference, PVSC 2013",

note = "39th IEEE Photovoltaic Specialists Conference, PVSC 2013 ; Conference date: 16-06-2013 Through 21-06-2013",

}

Kim, GY, Jeong, AR, Kim, JR, Jo, W, Kim, DH, Hwang, DK, Sung, SJ & Kang, JK 2013, Effect of selenization on local current and surface potential of sputtered Cu₂ZnSn(S, Se)₄ thin-films with 8% conversion efficiency. in 39th IEEE Photovoltaic Specialists Conference, PVSC 2013., 6744173, Conference Record of the IEEE Photovoltaic Specialists Conference, Institute of Electrical and Electronics Engineers Inc., pp. 383-385, 39th IEEE Photovoltaic Specialists Conference, PVSC 2013, Tampa, FL, United States, 16/06/13. https://doi.org/10.1109/PVSC.2013.6744173

Effect of selenization on local current and surface potential of sputtered Cu₂ZnSn(S, Se)₄ thin-films with 8% conversion efficiency. / Kim, Gee Yeong; Jeong, Ah Reum; Kim, Ju Ri et al.
39th IEEE Photovoltaic Specialists Conference, PVSC 2013. Institute of Electrical and Electronics Engineers Inc., 2013. p. 383-385 6744173 (Conference Record of the IEEE Photovoltaic Specialists Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Kim, Gee Yeong

AU - Jeong, Ah Reum

AU - Kim, Ju Ri

AU - Jo, William

AU - Kim, D. H.

AU - Hwang, D. K.

AU - Sung, S. J.

AU - Kang, J. K.

PY - 2013

Y1 - 2013

N2 - Cu2ZnSn(S, Se)4 (CZTSSe) is emerged as a promising material because of non-toxic, inexpensive and earth abundant more than Cu(In, Ga)Se2. The highest conversion efficiency of CZTSSe is 11.1 % at IBM based on hydrazine process [1]. We have achieved CZTSSe thin-film solar cell 8% conversion efficiency by sputtering process. CZTSSe thin-films show different efficiency depending on selenization process. Depending on the different selenization process, conversion efficiencies in each sample are definitely distinguished from 8.06 to 3.17%. We investigated local electrical properties on these samples. The local surface potential is also critically different, which is ∼ 200 mV on 8.06% film and ∼ 70 mV on 3.17% film. From these results, we can suggest that selenization process can affect to local electrical characteristic as well as improving solar cell performances.

AB - Cu2ZnSn(S, Se)4 (CZTSSe) is emerged as a promising material because of non-toxic, inexpensive and earth abundant more than Cu(In, Ga)Se2. The highest conversion efficiency of CZTSSe is 11.1 % at IBM based on hydrazine process [1]. We have achieved CZTSSe thin-film solar cell 8% conversion efficiency by sputtering process. CZTSSe thin-films show different efficiency depending on selenization process. Depending on the different selenization process, conversion efficiencies in each sample are definitely distinguished from 8.06 to 3.17%. We investigated local electrical properties on these samples. The local surface potential is also critically different, which is ∼ 200 mV on 8.06% film and ∼ 70 mV on 3.17% film. From these results, we can suggest that selenization process can affect to local electrical characteristic as well as improving solar cell performances.

KW - CZTSSe

KW - Carrier transport

KW - Scanning probe microscopy

KW - Selenization

KW - Work function

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U2 - 10.1109/PVSC.2013.6744173

DO - 10.1109/PVSC.2013.6744173

M3 - Conference contribution

AN - SCOPUS:84896460566

SN - 9781479932993

T3 - Conference Record of the IEEE Photovoltaic Specialists Conference

SP - 383

EP - 385

BT - 39th IEEE Photovoltaic Specialists Conference, PVSC 2013

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 39th IEEE Photovoltaic Specialists Conference, PVSC 2013

Y2 - 16 June 2013 through 21 June 2013

ER -

Kim GY, Jeong AR, Kim JR, Jo W, Kim DH, Hwang DK et al. Effect of selenization on local current and surface potential of sputtered Cu₂ZnSn(S, Se)₄ thin-films with 8% conversion efficiency. In 39th IEEE Photovoltaic Specialists Conference, PVSC 2013. Institute of Electrical and Electronics Engineers Inc. 2013. p. 383-385. 6744173. (Conference Record of the IEEE Photovoltaic Specialists Conference). doi: 10.1109/PVSC.2013.6744173