Cathodoluminescence of Cu Diffusion in CdTe Thin Films for CdTe/CdS Solar Cells

Manuel J. Romero; David S. Albin; Mowafak M. Al-Jassim; Xuanzhi Wu; Helio R. Moutinho; Ramesh G. Dhere

doi:10.1063/1.1515119

Cathodoluminescence of Cu Diffusion in CdTe Thin Films for CdTe/CdS Solar Cells

Manuel J. Romero
, David S. Albin
, Mowafak M. Al-Jassim
, Xuanzhi Wu
, Helio R. Moutinho
, Ramesh G. Dhere

Materials Science

National Renewable Energy Laboratory

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

44 Scopus Citations

Abstract

We investigate the distribution of Cu acceptor states in CdTe thin films used in high-efficiency solar cells. These states are Cu_Cd and Cu_i⁺-V_Cd^- complexes, which are relatively deep and shallow acceptors, respectively. Cathodoluminescence spectroscopy and imaging show that, first, Cu_Cd and Cu _i⁺-V_Cd^- do not coexist and, second, the primary diffuser is represented by Cu_i⁺-V _Cd^- complexes. Our results are used to discuss the effect of grain boundaries on Cu diffusion.

Original language	American English
Pages (from-to)	2962-2964
Number of pages	3
Journal	Applied Physics Letters
Volume	81
Issue number	16
DOIs	https://doi.org/10.1063/1.1515119 https://doi.org/10.1063/1.1515119
State	Published - 2002

NLR Publication Number

NREL/JA-520-32453

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title = "Cathodoluminescence of Cu Diffusion in CdTe Thin Films for CdTe/CdS Solar Cells",

abstract = "We investigate the distribution of Cu acceptor states in CdTe thin films used in high-efficiency solar cells. These states are CuCd and Cui+-VCd- complexes, which are relatively deep and shallow acceptors, respectively. Cathodoluminescence spectroscopy and imaging show that, first, CuCd and Cu i+-VCd- do not coexist and, second, the primary diffuser is represented by Cui+-V Cd- complexes. Our results are used to discuss the effect of grain boundaries on Cu diffusion.",

author = "Romero, \{Manuel J.\} and Albin, \{David S.\} and Al-Jassim, \{Mowafak M.\} and Xuanzhi Wu and Moutinho, \{Helio R.\} and Dhere, \{Ramesh G.\}",

year = "2002",

doi = "10.1063/1.1515119",

language = "American English",

volume = "81",

pages = "2962--2964",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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T1 - Cathodoluminescence of Cu Diffusion in CdTe Thin Films for CdTe/CdS Solar Cells

AU - Romero, Manuel J.

AU - Albin, David S.

AU - Al-Jassim, Mowafak M.

AU - Wu, Xuanzhi

AU - Moutinho, Helio R.

AU - Dhere, Ramesh G.

PY - 2002

Y1 - 2002

N2 - We investigate the distribution of Cu acceptor states in CdTe thin films used in high-efficiency solar cells. These states are CuCd and Cui+-VCd- complexes, which are relatively deep and shallow acceptors, respectively. Cathodoluminescence spectroscopy and imaging show that, first, CuCd and Cu i+-VCd- do not coexist and, second, the primary diffuser is represented by Cui+-V Cd- complexes. Our results are used to discuss the effect of grain boundaries on Cu diffusion.

AB - We investigate the distribution of Cu acceptor states in CdTe thin films used in high-efficiency solar cells. These states are CuCd and Cui+-VCd- complexes, which are relatively deep and shallow acceptors, respectively. Cathodoluminescence spectroscopy and imaging show that, first, CuCd and Cu i+-VCd- do not coexist and, second, the primary diffuser is represented by Cui+-V Cd- complexes. Our results are used to discuss the effect of grain boundaries on Cu diffusion.

UR - https://www.scopus.com/pages/publications/79955987473

U2 - 10.1063/1.1515119

DO - 10.1063/1.1515119

M3 - Article

AN - SCOPUS:79955987473

SN - 0003-6951

VL - 81

SP - 2962

EP - 2964

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 16

ER -

Cathodoluminescence of Cu Diffusion in CdTe Thin Films for CdTe/CdS Solar Cells

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