Electrical characterization of Cu composition effects in CdS/CdTe thin-film solar cells with a ZnTe:Cu back contact

Jian V. Li; Joel N. Duenow; Darius Kuciauskas; Ana Kanevce; Ramesh G. Dhere; Matthew R. Young; Dean H. Levi

doi:10.1109/PVSC-Vol2.2013.6656756

Electrical characterization of Cu composition effects in CdS/CdTe thin-film solar cells with a ZnTe:Cu back contact

Jian V. Li, Joel N. Duenow, Darius Kuciauskas, Ana Kanevce, Ramesh G. Dhere, Matthew R. Young, Dean H. Levi

Department of Aeronautics and Astronautics

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

6 Citations (Scopus)

Abstract

We study the effects of Cu composition on the CdTe/ZnTe:Cu back contact and the bulk CdTe. For the back contact, its potential barrier decreases with Cu concentration while its saturation current density increases. For the bulk CdTe, the hole density increases with Cu concentration. We identify a Cu-related deep level at ∼0.55 eV whose concentration is significant when the Cu concentration is high. The device performance, which initially improves with Cu concentration then decreases, reflects the interplay between the positive influences (reducing the back contact potential barrier while increasing the saturation current density of the back contact and hole density in CdTe bulk) and negative influences (increasing deep levels in CdTe) of Cu.

Original language	English
Title of host publication	2012 IEEE 38th Photovoltaic Specialists Conference, PVSC 2012
Edition	PART 2
DOIs	https://doi.org/10.1109/PVSC-Vol2.2013.6656756
Publication status	Published - 2012
Event	2012 IEEE 38th Photovoltaic Specialists Conference, PVSC 2012 - Austin, TX, United States Duration: 2012 Jun 3 → 2012 Jun 8

Publication series

Name	Conference Record of the IEEE Photovoltaic Specialists Conference
Number	PART 2
ISSN (Print)	0160-8371

Other

Other	2012 IEEE 38th Photovoltaic Specialists Conference, PVSC 2012
Country/Territory	United States
City	Austin, TX
Period	12-06-03 → 12-06-08

All Science Journal Classification (ASJC) codes

Control and Systems Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

Access to Document

10.1109/PVSC-Vol2.2013.6656756

Cite this

Li, J. V., Duenow, J. N., Kuciauskas, D., Kanevce, A., Dhere, R. G., Young, M. R., & Levi, D. H. (2012). Electrical characterization of Cu composition effects in CdS/CdTe thin-film solar cells with a ZnTe:Cu back contact. In 2012 IEEE 38th Photovoltaic Specialists Conference, PVSC 2012 (PART 2 ed.). Article 6656756 (Conference Record of the IEEE Photovoltaic Specialists Conference; No. PART 2). https://doi.org/10.1109/PVSC-Vol2.2013.6656756

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title = "Electrical characterization of Cu composition effects in CdS/CdTe thin-film solar cells with a ZnTe:Cu back contact",

abstract = "We study the effects of Cu composition on the CdTe/ZnTe:Cu back contact and the bulk CdTe. For the back contact, its potential barrier decreases with Cu concentration while its saturation current density increases. For the bulk CdTe, the hole density increases with Cu concentration. We identify a Cu-related deep level at ∼0.55 eV whose concentration is significant when the Cu concentration is high. The device performance, which initially improves with Cu concentration then decreases, reflects the interplay between the positive influences (reducing the back contact potential barrier while increasing the saturation current density of the back contact and hole density in CdTe bulk) and negative influences (increasing deep levels in CdTe) of Cu.",

author = "Li, {Jian V.} and Duenow, {Joel N.} and Darius Kuciauskas and Ana Kanevce and Dhere, {Ramesh G.} and Young, {Matthew R.} and Levi, {Dean H.}",

year = "2012",

doi = "10.1109/PVSC-Vol2.2013.6656756",

language = "English",

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

number = "PART 2",

booktitle = "2012 IEEE 38th Photovoltaic Specialists Conference, PVSC 2012",

edition = "PART 2",

note = "2012 IEEE 38th Photovoltaic Specialists Conference, PVSC 2012 ; Conference date: 03-06-2012 Through 08-06-2012",

}

Li, JV, Duenow, JN, Kuciauskas, D, Kanevce, A, Dhere, RG, Young, MR & Levi, DH 2012, Electrical characterization of Cu composition effects in CdS/CdTe thin-film solar cells with a ZnTe:Cu back contact. in 2012 IEEE 38th Photovoltaic Specialists Conference, PVSC 2012. PART 2 edn, 6656756, Conference Record of the IEEE Photovoltaic Specialists Conference, no. PART 2, 2012 IEEE 38th Photovoltaic Specialists Conference, PVSC 2012, Austin, TX, United States, 12-06-03. https://doi.org/10.1109/PVSC-Vol2.2013.6656756

Electrical characterization of Cu composition effects in CdS/CdTe thin-film solar cells with a ZnTe:Cu back contact. / Li, Jian V.; Duenow, Joel N.; Kuciauskas, Darius et al.
2012 IEEE 38th Photovoltaic Specialists Conference, PVSC 2012. PART 2. ed. 2012. 6656756 (Conference Record of the IEEE Photovoltaic Specialists Conference; No. PART 2).

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

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AU - Li, Jian V.

AU - Duenow, Joel N.

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AU - Kanevce, Ana

AU - Dhere, Ramesh G.

AU - Young, Matthew R.

AU - Levi, Dean H.

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AB - We study the effects of Cu composition on the CdTe/ZnTe:Cu back contact and the bulk CdTe. For the back contact, its potential barrier decreases with Cu concentration while its saturation current density increases. For the bulk CdTe, the hole density increases with Cu concentration. We identify a Cu-related deep level at ∼0.55 eV whose concentration is significant when the Cu concentration is high. The device performance, which initially improves with Cu concentration then decreases, reflects the interplay between the positive influences (reducing the back contact potential barrier while increasing the saturation current density of the back contact and hole density in CdTe bulk) and negative influences (increasing deep levels in CdTe) of Cu.

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Li JV, Duenow JN, Kuciauskas D, Kanevce A, Dhere RG, Young MR et al. Electrical characterization of Cu composition effects in CdS/CdTe thin-film solar cells with a ZnTe:Cu back contact. In 2012 IEEE 38th Photovoltaic Specialists Conference, PVSC 2012. PART 2 ed. 2012. 6656756. (Conference Record of the IEEE Photovoltaic Specialists Conference; PART 2). doi: 10.1109/PVSC-Vol2.2013.6656756

Electrical characterization of Cu composition effects in CdS/CdTe thin-film solar cells with a ZnTe:Cu back contact

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