Close spaced sublimation deposition of CdTe layers with process gas oxygen for thin film solar cells

V. Krishnakumar; B. Späth; C. Drost; C. Kraft; B. Siepchen; A. Delahoy; X. Tan; K. Chin; S. Peng; D. Hirsch; O. Zywitzki; T. Modes; H. Morgner

doi:10.1016/j.tsf.2016.10.009

Close spaced sublimation deposition of CdTe layers with process gas oxygen for thin film solar cells

V. Krishnakumar, B. Späth, C. Drost, C. Kraft, B. Siepchen, A. Delahoy, X. Tan, K. Chin, S. Peng, D. Hirsch, O. Zywitzki, T. Modes, H. Morgner

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

10 Scopus citations

Abstract

Close spaced sublimation (CSS) is one of the leading technologies for deposition of the absorber layer in CdTe solar cells. For large scale production CSS is a dynamic process where the substrates are moved above the crucible at a close distance. In this study oxygen as a process gas is injected during dynamic CSS deposition. Solar cells are prepared from these layers by CdCl₂ activation, copper doping and back contact deposition. The samples are investigated using current voltage measurement, quantum efficiency, scanning electron microscopy of cross sections and deep level transient spectroscopy. The results show that the precise introduction of oxygen can improve the solar cell efficiency. The reasons for this effect are discussed in this study.

Original language	English (US)
Pages (from-to)	112-117
Number of pages	6
Journal	Thin Solid Films
Volume	633
DOIs	https://doi.org/10.1016/j.tsf.2016.10.009
State	Published - Jul 1 2017

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

Keywords

Absorber layer
Cadmium telluride
Electrical characterization
Solar cells
Thin film

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10.1016/j.tsf.2016.10.009

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title = "Close spaced sublimation deposition of CdTe layers with process gas oxygen for thin film solar cells",

abstract = "Close spaced sublimation (CSS) is one of the leading technologies for deposition of the absorber layer in CdTe solar cells. For large scale production CSS is a dynamic process where the substrates are moved above the crucible at a close distance. In this study oxygen as a process gas is injected during dynamic CSS deposition. Solar cells are prepared from these layers by CdCl2 activation, copper doping and back contact deposition. The samples are investigated using current voltage measurement, quantum efficiency, scanning electron microscopy of cross sections and deep level transient spectroscopy. The results show that the precise introduction of oxygen can improve the solar cell efficiency. The reasons for this effect are discussed in this study.",

keywords = "Absorber layer, Cadmium telluride, Electrical characterization, Solar cells, Thin film",

author = "V. Krishnakumar and B. Sp{\"a}th and C. Drost and C. Kraft and B. Siepchen and A. Delahoy and X. Tan and K. Chin and S. Peng and D. Hirsch and O. Zywitzki and T. Modes and H. Morgner",

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year = "2017",

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doi = "10.1016/j.tsf.2016.10.009",

language = "English (US)",

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TY - JOUR

T1 - Close spaced sublimation deposition of CdTe layers with process gas oxygen for thin film solar cells

AU - Krishnakumar, V.

AU - Späth, B.

AU - Drost, C.

AU - Kraft, C.

AU - Siepchen, B.

AU - Delahoy, A.

AU - Tan, X.

AU - Chin, K.

AU - Peng, S.

AU - Hirsch, D.

AU - Zywitzki, O.

AU - Modes, T.

AU - Morgner, H.

PY - 2017/7/1

Y1 - 2017/7/1

N2 - Close spaced sublimation (CSS) is one of the leading technologies for deposition of the absorber layer in CdTe solar cells. For large scale production CSS is a dynamic process where the substrates are moved above the crucible at a close distance. In this study oxygen as a process gas is injected during dynamic CSS deposition. Solar cells are prepared from these layers by CdCl2 activation, copper doping and back contact deposition. The samples are investigated using current voltage measurement, quantum efficiency, scanning electron microscopy of cross sections and deep level transient spectroscopy. The results show that the precise introduction of oxygen can improve the solar cell efficiency. The reasons for this effect are discussed in this study.

AB - Close spaced sublimation (CSS) is one of the leading technologies for deposition of the absorber layer in CdTe solar cells. For large scale production CSS is a dynamic process where the substrates are moved above the crucible at a close distance. In this study oxygen as a process gas is injected during dynamic CSS deposition. Solar cells are prepared from these layers by CdCl2 activation, copper doping and back contact deposition. The samples are investigated using current voltage measurement, quantum efficiency, scanning electron microscopy of cross sections and deep level transient spectroscopy. The results show that the precise introduction of oxygen can improve the solar cell efficiency. The reasons for this effect are discussed in this study.

KW - Absorber layer

KW - Cadmium telluride

KW - Electrical characterization

KW - Solar cells

KW - Thin film

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U2 - 10.1016/j.tsf.2016.10.009

DO - 10.1016/j.tsf.2016.10.009

M3 - Article

AN - SCOPUS:84992187835

SN - 0040-6090

VL - 633

SP - 112

EP - 117

JO - Thin Solid Films

JF - Thin Solid Films

ER -

Close spaced sublimation deposition of CdTe layers with process gas oxygen for thin film solar cells

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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