ALD ZnSnO buffer layer for enhancing heterojunction interface quality of CZTS solar cells

Xin Cui; Kaiwen Sun; Chang Yeh Lee; Chang Yan; Heng Sun; Yuanfang Zhang; Fangyang Liu; Martin Green; Bram Hoex; Xiaojing Hao

ALD ZnSnO buffer layer for enhancing heterojunction interface quality of CZTS solar cells

Xin Cui, Kaiwen Sun, Chang Yeh Lee, Chang Yan, Heng Sun, Yuanfang Zhang, Fangyang Liu, Martin Green, Bram Hoex, Xiaojing Hao

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

2 Citations (Scopus)

Abstract

Kesterite Cu-{2}ZnSnS-{4}(CZTS) solar cells have emerged as a promising candidate for scalable thin-film solar cells development, mainly due to its outstanding performance and compatibility with CuInGaSe2 and CdTe solar cells while only consisting of earth-abundant and non-toxic constituents. Here we present a method to address the relative low V-{OC}of CZTS solar cells by applying atomic layer deposited Zn{}-{1-x}Sn-{x}O(ZTO) as a Cd-free buffer layer. X-ray photoelectron spectroscopy measurement is implemented to study the band alignment at the CZTS /ZTOhetero-interface. It shows that the favorable conduction band alignment of CZTS /ZTOresulted in increasing V-{OC}by up to 10 %. By optimizing the treatment of CZTS absorber before ZTO deposition, we finally obtained an efficiency of 9.3 % which is the highest efficiency so far reported for Cd- free pure sulphide CZTS solar cells to the best of our knowledge.Index Terms- ALD, ZnSnO, heterojunction, CZTS.

Original language	English
Title of host publication	2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1511-1513
Number of pages	3
ISBN (Electronic)	9781538685297
Publication status	Published - 26 Nov 2018
Externally published	Yes
Event	7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - Waikoloa Village, United States Duration: 10 Jun 2018 → 15 Jun 2018

Publication series

Name	2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC

Conference

Conference	7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018
Country/Territory	United States
City	Waikoloa Village
Period	10/06/18 → 15/06/18

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

UN SDGs

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

SDG 7 Affordable and Clean Energy

Access to Document

https://hdl.handle.net/1783.1/122134

Cite this

Cui, X., Sun, K., Lee, C. Y., Yan, C., Sun, H., Zhang, Y., Liu, F., Green, M., Hoex, B., & Hao, X. (2018). ALD ZnSnO buffer layer for enhancing heterojunction interface quality of CZTS solar cells. In 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC (pp. 1511-1513). Article 8547988 (2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC). Institute of Electrical and Electronics Engineers Inc.. https://hdl.handle.net/1783.1/122134

Cui, Xin ; Sun, Kaiwen ; Lee, Chang Yeh et al. / ALD ZnSnO buffer layer for enhancing heterojunction interface quality of CZTS solar cells. 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 1511-1513 (2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC).

@inproceedings{146115ad56e44254bec42629c91afb11,

title = "ALD ZnSnO buffer layer for enhancing heterojunction interface quality of CZTS solar cells",

abstract = "Kesterite Cu-\{2\}ZnSnS-\{4\}(CZTS) solar cells have emerged as a promising candidate for scalable thin-film solar cells development, mainly due to its outstanding performance and compatibility with CuInGaSe2 and CdTe solar cells while only consisting of earth-abundant and non-toxic constituents. Here we present a method to address the relative low V-\{OC\}of CZTS solar cells by applying atomic layer deposited Zn\{\}-\{1-x\}Sn-\{x\}O(ZTO) as a Cd-free buffer layer. X-ray photoelectron spectroscopy measurement is implemented to study the band alignment at the CZTS /ZTOhetero-interface. It shows that the favorable conduction band alignment of CZTS /ZTOresulted in increasing V-\{OC\}by up to 10 \%. By optimizing the treatment of CZTS absorber before ZTO deposition, we finally obtained an efficiency of 9.3 \% which is the highest efficiency so far reported for Cd- free pure sulphide CZTS solar cells to the best of our knowledge.Index Terms- ALD, ZnSnO, heterojunction, CZTS.",

author = "Xin Cui and Kaiwen Sun and Lee, \{Chang Yeh\} and Chang Yan and Heng Sun and Yuanfang Zhang and Fangyang Liu and Martin Green and Bram Hoex and Xiaojing Hao",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 ; Conference date: 10-06-2018 Through 15-06-2018",

year = "2018",

month = nov,

day = "26",

language = "English",

series = "2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC",

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

pages = "1511--1513",

booktitle = "2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC",

}

Cui, X, Sun, K, Lee, CY, Yan, C, Sun, H, Zhang, Y, Liu, F, Green, M, Hoex, B & Hao, X 2018, ALD ZnSnO buffer layer for enhancing heterojunction interface quality of CZTS solar cells. in 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC., 8547988, 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC, Institute of Electrical and Electronics Engineers Inc., pp. 1511-1513, 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018, Waikoloa Village, United States, 10/06/18. <https://hdl.handle.net/1783.1/122134>

ALD ZnSnO buffer layer for enhancing heterojunction interface quality of CZTS solar cells. / Cui, Xin; Sun, Kaiwen; Lee, Chang Yeh et al.
2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC. Institute of Electrical and Electronics Engineers Inc., 2018. p. 1511-1513 8547988 (2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC).

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

TY - GEN

T1 - ALD ZnSnO buffer layer for enhancing heterojunction interface quality of CZTS solar cells

AU - Cui, Xin

AU - Sun, Kaiwen

AU - Lee, Chang Yeh

AU - Yan, Chang

AU - Sun, Heng

AU - Zhang, Yuanfang

AU - Liu, Fangyang

AU - Green, Martin

AU - Hoex, Bram

AU - Hao, Xiaojing

PY - 2018/11/26

Y1 - 2018/11/26

N2 - Kesterite Cu-{2}ZnSnS-{4}(CZTS) solar cells have emerged as a promising candidate for scalable thin-film solar cells development, mainly due to its outstanding performance and compatibility with CuInGaSe2 and CdTe solar cells while only consisting of earth-abundant and non-toxic constituents. Here we present a method to address the relative low V-{OC}of CZTS solar cells by applying atomic layer deposited Zn{}-{1-x}Sn-{x}O(ZTO) as a Cd-free buffer layer. X-ray photoelectron spectroscopy measurement is implemented to study the band alignment at the CZTS /ZTOhetero-interface. It shows that the favorable conduction band alignment of CZTS /ZTOresulted in increasing V-{OC}by up to 10 %. By optimizing the treatment of CZTS absorber before ZTO deposition, we finally obtained an efficiency of 9.3 % which is the highest efficiency so far reported for Cd- free pure sulphide CZTS solar cells to the best of our knowledge.Index Terms- ALD, ZnSnO, heterojunction, CZTS.

AB - Kesterite Cu-{2}ZnSnS-{4}(CZTS) solar cells have emerged as a promising candidate for scalable thin-film solar cells development, mainly due to its outstanding performance and compatibility with CuInGaSe2 and CdTe solar cells while only consisting of earth-abundant and non-toxic constituents. Here we present a method to address the relative low V-{OC}of CZTS solar cells by applying atomic layer deposited Zn{}-{1-x}Sn-{x}O(ZTO) as a Cd-free buffer layer. X-ray photoelectron spectroscopy measurement is implemented to study the band alignment at the CZTS /ZTOhetero-interface. It shows that the favorable conduction band alignment of CZTS /ZTOresulted in increasing V-{OC}by up to 10 %. By optimizing the treatment of CZTS absorber before ZTO deposition, we finally obtained an efficiency of 9.3 % which is the highest efficiency so far reported for Cd- free pure sulphide CZTS solar cells to the best of our knowledge.Index Terms- ALD, ZnSnO, heterojunction, CZTS.

UR - https://www.scopus.com/pages/publications/85059893879

M3 - Conference Paper published in a book

AN - SCOPUS:85059893879

T3 - 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC

SP - 1511

EP - 1513

BT - 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018

Y2 - 10 June 2018 through 15 June 2018

ER -

Cui X, Sun K, Lee CY, Yan C, Sun H, Zhang Y et al. ALD ZnSnO buffer layer for enhancing heterojunction interface quality of CZTS solar cells. In 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC. Institute of Electrical and Electronics Engineers Inc. 2018. p. 1511-1513. 8547988. (2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC).

ALD ZnSnO buffer layer for enhancing heterojunction interface quality of CZTS solar cells

Abstract

Publication series

Conference

Bibliographical note

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this