Post-growth process for flexible CdS/CdTe thin film solar cells with high specific power

Eunwoo Cho; Yoonmook Kang; Donghwan Kim; Jihyun Kim

doi:10.1364/OE.24.00A791

Post-growth process for flexible CdS/CdTe thin film solar cells with high specific power

Eunwoo Cho, Yoonmook Kang, Donghwan Kim, Jihyun Kim

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

9 Citations (Scopus)

Abstract

We demonstrated a flexible CdS/CdTe thin film solar cell with high specific power of approximately 254 W/kg. A flexible and ultra-light weight CdS/CdTe cell treated with pre-NP etch process exhibited high conversion efficiency of 13.56% in superstrate configuration. Morphological, structural and optical changes of CdS/CdTe thin films were characterized when pre-NP etch step was incorporated to the conventional post-deposition process. Improvement of photovoltaic parameters can be attributed to the removal of the oxide and the formation of Te-rich layer, which benefit the activation process. Pre-NP etched cell maintained their flexibility and performance under the repeated tensile strain of 0.13%. Our method can pave a way for manufacturing flexible CdS/CdTe thin film solar cells with high specific power for mobile and aerospace applications.

Original language	English
Pages (from-to)	A791-A796
Journal	Optics Express
Volume	24
Issue number	10
DOIs	https://doi.org/10.1364/OE.24.00A791
Publication status	Published - 2016 May 16

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

UN SDGs

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

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10.1364/OE.24.00A791

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title = "Post-growth process for flexible CdS/CdTe thin film solar cells with high specific power",

abstract = "We demonstrated a flexible CdS/CdTe thin film solar cell with high specific power of approximately 254 W/kg. A flexible and ultra-light weight CdS/CdTe cell treated with pre-NP etch process exhibited high conversion efficiency of 13.56% in superstrate configuration. Morphological, structural and optical changes of CdS/CdTe thin films were characterized when pre-NP etch step was incorporated to the conventional post-deposition process. Improvement of photovoltaic parameters can be attributed to the removal of the oxide and the formation of Te-rich layer, which benefit the activation process. Pre-NP etched cell maintained their flexibility and performance under the repeated tensile strain of 0.13%. Our method can pave a way for manufacturing flexible CdS/CdTe thin film solar cells with high specific power for mobile and aerospace applications.",

author = "Eunwoo Cho and Yoonmook Kang and Donghwan Kim and Jihyun Kim",

note = "Funding Information: This work is supported by the New and Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry and Energy, Korea. (No. 20153030012110). Publisher Copyright: {\textcopyright}2016 Optical Society of America.",

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doi = "10.1364/OE.24.00A791",

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T1 - Post-growth process for flexible CdS/CdTe thin film solar cells with high specific power

AU - Cho, Eunwoo

AU - Kang, Yoonmook

AU - Kim, Donghwan

AU - Kim, Jihyun

N1 - Funding Information: This work is supported by the New and Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry and Energy, Korea. (No. 20153030012110). Publisher Copyright: ©2016 Optical Society of America.

PY - 2016/5/16

Y1 - 2016/5/16

N2 - We demonstrated a flexible CdS/CdTe thin film solar cell with high specific power of approximately 254 W/kg. A flexible and ultra-light weight CdS/CdTe cell treated with pre-NP etch process exhibited high conversion efficiency of 13.56% in superstrate configuration. Morphological, structural and optical changes of CdS/CdTe thin films were characterized when pre-NP etch step was incorporated to the conventional post-deposition process. Improvement of photovoltaic parameters can be attributed to the removal of the oxide and the formation of Te-rich layer, which benefit the activation process. Pre-NP etched cell maintained their flexibility and performance under the repeated tensile strain of 0.13%. Our method can pave a way for manufacturing flexible CdS/CdTe thin film solar cells with high specific power for mobile and aerospace applications.

AB - We demonstrated a flexible CdS/CdTe thin film solar cell with high specific power of approximately 254 W/kg. A flexible and ultra-light weight CdS/CdTe cell treated with pre-NP etch process exhibited high conversion efficiency of 13.56% in superstrate configuration. Morphological, structural and optical changes of CdS/CdTe thin films were characterized when pre-NP etch step was incorporated to the conventional post-deposition process. Improvement of photovoltaic parameters can be attributed to the removal of the oxide and the formation of Te-rich layer, which benefit the activation process. Pre-NP etched cell maintained their flexibility and performance under the repeated tensile strain of 0.13%. Our method can pave a way for manufacturing flexible CdS/CdTe thin film solar cells with high specific power for mobile and aerospace applications.

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DO - 10.1364/OE.24.00A791

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VL - 24

SP - A791-A796

JO - Optics Express

JF - Optics Express

IS - 10

ER -

Post-growth process for flexible CdS/CdTe thin film solar cells with high specific power

Abstract

ASJC Scopus subject areas

UN SDGs

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