Improved Photovoltaic Characteristics and Grain Boundary Potentials of CuIn0.7Ga0.3Se2 Thin Films Spin-Coated by Na-Dissolved Nontoxic Precursor Solution

Ik Jin Choi; Jin Woo Jang; Bhaskar Chandra Mohanty; Seung Min Lee; Yong Soo Cho

doi:10.1021/acsami.6b04407

Improved Photovoltaic Characteristics and Grain Boundary Potentials of CuIn_0.7Ga_0.3Se₂ Thin Films Spin-Coated by Na-Dissolved Nontoxic Precursor Solution

Ik Jin Choi, Jin Woo Jang, Bhaskar Chandra Mohanty, Seung Min Lee, Yong Soo Cho

Department of Materials Science and Engineering

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

16 Citations (Scopus)

Abstract

This work introduces the incorporation of Na into the nontoxic precursor solution of CIGS to improve photovoltaic cell performance with the optimized benefits of Na. The extensive incorporation range of 0.05 to 0.5 mol % Na is used for the simple spin-coating process of high quality absorber thin films. A cell efficiency of ∼8.21%, which corresponds to an improvement of ∼10.2% compared to the reference sample, is achieved for the 0.25 mol % Na sample with enhanced open-circuit voltage and fill factor. The improvement was further analyzed as related to In_Cu defects and grain boundary potentials.

Original language	English
Pages (from-to)	17011-17015
Number of pages	5
Journal	ACS Applied Materials and Interfaces
Volume	8
Issue number	27
DOIs	https://doi.org/10.1021/acsami.6b04407
Publication status	Published - 2016 Jul 13

Bibliographical note

Funding Information:
This work was financially supported by grants (2011-0020285) from the National Research Foundation of Korea (NRF) funded by the Korean government.

Publisher Copyright:
© 2016 American Chemical Society.

All Science Journal Classification (ASJC) codes

Materials Science(all)

UN SDGs

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

Access to Document

10.1021/acsami.6b04407

Cite this

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title = "Improved Photovoltaic Characteristics and Grain Boundary Potentials of CuIn0.7Ga0.3Se2 Thin Films Spin-Coated by Na-Dissolved Nontoxic Precursor Solution",

abstract = "This work introduces the incorporation of Na into the nontoxic precursor solution of CIGS to improve photovoltaic cell performance with the optimized benefits of Na. The extensive incorporation range of 0.05 to 0.5 mol % Na is used for the simple spin-coating process of high quality absorber thin films. A cell efficiency of ∼8.21%, which corresponds to an improvement of ∼10.2% compared to the reference sample, is achieved for the 0.25 mol % Na sample with enhanced open-circuit voltage and fill factor. The improvement was further analyzed as related to InCu defects and grain boundary potentials.",

author = "Choi, {Ik Jin} and Jang, {Jin Woo} and Mohanty, {Bhaskar Chandra} and Lee, {Seung Min} and Cho, {Yong Soo}",

note = "Funding Information: This work was financially supported by grants (2011-0020285) from the National Research Foundation of Korea (NRF) funded by the Korean government. Publisher Copyright: {\textcopyright} 2016 American Chemical Society.",

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Improved Photovoltaic Characteristics and Grain Boundary Potentials of CuIn_0.7Ga_0.3Se₂ Thin Films Spin-Coated by Na-Dissolved Nontoxic Precursor Solution. / Choi, Ik Jin; Jang, Jin Woo; Mohanty, Bhaskar Chandra et al.

In: ACS Applied Materials and Interfaces, Vol. 8, No. 27, 13.07.2016, p. 17011-17015.

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

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AU - Mohanty, Bhaskar Chandra

AU - Lee, Seung Min

AU - Cho, Yong Soo

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