Nano-structured ZnSe/CIS heterojunction solar cells with ZnSe/ZnO coaxial nanowires

Dung Ching Perng; Jia Feng Fang; Jhin Wei Chen

doi:10.1149/1.3625607

Nano-structured ZnSe/CIS heterojunction solar cells with ZnSe/ZnO coaxial nanowires

Dung Ching Perng, Jia Feng Fang, Jhin Wei Chen

Department of Electrical Engineering

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

13 Citations (Scopus)

Abstract

We have demonstrated superstrate type nano-structured solar cells with ZnSe/ZnO coaxial NWs embedded in the CuInSe₂ (CIS) layer. Complete filling of the CIS film into the narrow spaces between the ZnO NWs was realized by growing the NWs sparsely. The ZnSe/CIS heterojunction was self-formed by converting a skin (∼50 nm) layer of ZnO after the selenization. The influences of the NW length and density on light trapping and on cell conversion efficiency have been investigated. A 30 improvement in J_sc and higher efficiency has been achieved by embedding NWs in the CIS layer. Conversion efficiency of 1.79 was obtained from a ZnSe/CIS heterojunction solar cell fabricated on sparse ZnO NWs with V_oc 599 mV, J_sc 11.60 mA/cm² and 25.71 fill factor.

Original language	English
Pages (from-to)	H1097-H1101
Journal	Journal of the Electrochemical Society
Volume	158
Issue number	10
DOIs	https://doi.org/10.1149/1.3625607
Publication status	Published - 2011

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Materials Chemistry
Surfaces, Coatings and Films
Electrochemistry
Renewable Energy, Sustainability and the Environment

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

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title = "Nano-structured ZnSe/CIS heterojunction solar cells with ZnSe/ZnO coaxial nanowires",

abstract = "We have demonstrated superstrate type nano-structured solar cells with ZnSe/ZnO coaxial NWs embedded in the CuInSe2 (CIS) layer. Complete filling of the CIS film into the narrow spaces between the ZnO NWs was realized by growing the NWs sparsely. The ZnSe/CIS heterojunction was self-formed by converting a skin (∼50 nm) layer of ZnO after the selenization. The influences of the NW length and density on light trapping and on cell conversion efficiency have been investigated. A 30 improvement in Jsc and higher efficiency has been achieved by embedding NWs in the CIS layer. Conversion efficiency of 1.79 was obtained from a ZnSe/CIS heterojunction solar cell fabricated on sparse ZnO NWs with Voc 599 mV, Jsc 11.60 mA/cm2 and 25.71 fill factor.",

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AU - Perng, Dung Ching

AU - Fang, Jia Feng

AU - Chen, Jhin Wei

PY - 2011

Y1 - 2011

N2 - We have demonstrated superstrate type nano-structured solar cells with ZnSe/ZnO coaxial NWs embedded in the CuInSe2 (CIS) layer. Complete filling of the CIS film into the narrow spaces between the ZnO NWs was realized by growing the NWs sparsely. The ZnSe/CIS heterojunction was self-formed by converting a skin (∼50 nm) layer of ZnO after the selenization. The influences of the NW length and density on light trapping and on cell conversion efficiency have been investigated. A 30 improvement in Jsc and higher efficiency has been achieved by embedding NWs in the CIS layer. Conversion efficiency of 1.79 was obtained from a ZnSe/CIS heterojunction solar cell fabricated on sparse ZnO NWs with Voc 599 mV, Jsc 11.60 mA/cm2 and 25.71 fill factor.

AB - We have demonstrated superstrate type nano-structured solar cells with ZnSe/ZnO coaxial NWs embedded in the CuInSe2 (CIS) layer. Complete filling of the CIS film into the narrow spaces between the ZnO NWs was realized by growing the NWs sparsely. The ZnSe/CIS heterojunction was self-formed by converting a skin (∼50 nm) layer of ZnO after the selenization. The influences of the NW length and density on light trapping and on cell conversion efficiency have been investigated. A 30 improvement in Jsc and higher efficiency has been achieved by embedding NWs in the CIS layer. Conversion efficiency of 1.79 was obtained from a ZnSe/CIS heterojunction solar cell fabricated on sparse ZnO NWs with Voc 599 mV, Jsc 11.60 mA/cm2 and 25.71 fill factor.

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Nano-structured ZnSe/CIS heterojunction solar cells with ZnSe/ZnO coaxial nanowires

Abstract

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