Properties of CuInGaSe2 solar cells based upon an improved three-stage process

K. Sakurai; R. Hunger; N. Tsuchimochi; T. Baba; K. Matsubara; P. Fons; A. Yamada; T. Kojima; T. Deguchi; H. Nakanishi; S. Niki

doi:10.1016/S0040-6090(03)00226-8

Properties of CuInGaSe₂ solar cells based upon an improved three-stage process

K. Sakurai, R. Hunger, N. Tsuchimochi, T. Baba, K. Matsubara, P. Fons, A. Yamada, T. Kojima, T. Deguchi, H. Nakanishi, S. Niki

Research output: Contribution to journal › Conference article › peer-review

33 Citations (Scopus)

Abstract

Recently, we have developed an improved three-stage growth method by simultaneously using a pyrometer and a thermocouple, to accurately control thickness and composition during growth of CuInGaSe₂ (CIGS). As a result, we have obtained solar cells that show preliminary efficiencies up to 16.4% without anti-reflection coating. Using the technique, we have investigated possible mechanism behind non-optimal cell efficiency, focusing on the effects of the molybdenum contact layer. Some additional advantages of our pyrometer monitoring technique are described. Optimizing the properties of Mo layer leads to suppression of Na segregation and distinctive damage to the CIGS surface, improving both cell performance and reproducibility.

Original language	English
Pages (from-to)	6-10
Number of pages	5
Journal	Thin Solid Films
Volume	431-432
DOIs	https://doi.org/10.1016/S0040-6090(03)00226-8
Publication status	Published - 2003 May 1
Externally published	Yes
Event	Proceedings of Symposium B - Strasbourg, France Duration: 2002 Jun 18 → 2002 Jun 21

Keywords

CuInGaSe
Molybdenum
Pyrometer
Sodium
Solar cells
Three stage process

ASJC Scopus subject areas

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

Access to Document

10.1016/S0040-6090(03)00226-8

Cite this

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title = "Properties of CuInGaSe2 solar cells based upon an improved three-stage process",

abstract = "Recently, we have developed an improved three-stage growth method by simultaneously using a pyrometer and a thermocouple, to accurately control thickness and composition during growth of CuInGaSe2 (CIGS). As a result, we have obtained solar cells that show preliminary efficiencies up to 16.4% without anti-reflection coating. Using the technique, we have investigated possible mechanism behind non-optimal cell efficiency, focusing on the effects of the molybdenum contact layer. Some additional advantages of our pyrometer monitoring technique are described. Optimizing the properties of Mo layer leads to suppression of Na segregation and distinctive damage to the CIGS surface, improving both cell performance and reproducibility.",

keywords = "CuInGaSe, Molybdenum, Pyrometer, Sodium, Solar cells, Three stage process",

author = "K. Sakurai and R. Hunger and N. Tsuchimochi and T. Baba and K. Matsubara and P. Fons and A. Yamada and T. Kojima and T. Deguchi and H. Nakanishi and S. Niki",

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doi = "10.1016/S0040-6090(03)00226-8",

language = "English",

volume = "431-432",

pages = "6--10",

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note = "Proceedings of Symposium B ; Conference date: 18-06-2002 Through 21-06-2002",

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TY - JOUR

T1 - Properties of CuInGaSe2 solar cells based upon an improved three-stage process

AU - Sakurai, K.

AU - Hunger, R.

AU - Tsuchimochi, N.

AU - Baba, T.

AU - Matsubara, K.

AU - Fons, P.

AU - Yamada, A.

AU - Kojima, T.

AU - Deguchi, T.

AU - Nakanishi, H.

AU - Niki, S.

PY - 2003/5/1

Y1 - 2003/5/1

N2 - Recently, we have developed an improved three-stage growth method by simultaneously using a pyrometer and a thermocouple, to accurately control thickness and composition during growth of CuInGaSe2 (CIGS). As a result, we have obtained solar cells that show preliminary efficiencies up to 16.4% without anti-reflection coating. Using the technique, we have investigated possible mechanism behind non-optimal cell efficiency, focusing on the effects of the molybdenum contact layer. Some additional advantages of our pyrometer monitoring technique are described. Optimizing the properties of Mo layer leads to suppression of Na segregation and distinctive damage to the CIGS surface, improving both cell performance and reproducibility.

AB - Recently, we have developed an improved three-stage growth method by simultaneously using a pyrometer and a thermocouple, to accurately control thickness and composition during growth of CuInGaSe2 (CIGS). As a result, we have obtained solar cells that show preliminary efficiencies up to 16.4% without anti-reflection coating. Using the technique, we have investigated possible mechanism behind non-optimal cell efficiency, focusing on the effects of the molybdenum contact layer. Some additional advantages of our pyrometer monitoring technique are described. Optimizing the properties of Mo layer leads to suppression of Na segregation and distinctive damage to the CIGS surface, improving both cell performance and reproducibility.

KW - CuInGaSe

KW - Molybdenum

KW - Pyrometer

KW - Sodium

KW - Solar cells

KW - Three stage process

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VL - 431-432

SP - 6

EP - 10

JO - Thin Solid Films

JF - Thin Solid Films

T2 - Proceedings of Symposium B

Y2 - 18 June 2002 through 21 June 2002

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