Reconsideration of the gallium nitride: dual functionality as an electron transporter and transparent conductor for recyclable polymer solar cell substrate applications

Kwang Jae Lee; Sang Eun Yoon; Gyeong G. Jeon; Sung Hoon Jung; Tae Hoon Jung; Namchul Cho; Jae Sung Yun; Jincheol Kim; Anita W. Y. Ho-Baillie; Jong Hyeob Baek; Myungkwan Song; Jong H. Kim

doi:10.1016/j.solmat.2019.109971

Reconsideration of the gallium nitride: dual functionality as an electron transporter and transparent conductor for recyclable polymer solar cell substrate applications

Kwang Jae Lee, Sang Eun Yoon, Gyeong G. Jeon, Sung Hoon Jung, Tae Hoon Jung, Namchul Cho, Jae Sung Yun, Jincheol Kim, Anita W. Y. Ho-Baillie, Jong Hyeob Baek^*, Myungkwan Song, Jong H. Kim

^*Corresponding author for this work

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

Abstract

Herein, we report the dual functionality of a single n-type gallium nitride (n-GaN) layer as an electron transporter and transparent conductor, which has applications in reusable organic solar cells. After silicon doping with an optimized electron concentration, thin-film layer of GaN showed exceptional electrical properties including charge carrier mobility of 161 cm² V⁻¹s⁻¹, electrical conductivity of 1.4ⅹ10⁶ S cm⁻¹, and sheet resistance of 11.1 Ω cm⁻². Organic solar cells based on n-GaN exhibited power conversion efficiency comparable to those based on a conventional ITO/ZnO bilayered cathode. Furthermore, the n-GaN substrates exhibited reusability; due to excellent chemical stability of n-GaN, the reconstructed organic solar cells maintained their initial performance after the substrates were recycled. We suggest a new type of reusable n-GaN cathode layer featuring an integrated electron transporting layer and transparent electrode.

Original language	English
Article number	109971
Number of pages	6
Journal	Solar Energy Materials and Solar Cells
Volume	200
DOIs	https://doi.org/10.1016/j.solmat.2019.109971
Publication status	Published - 15 Sept 2019
Externally published	Yes

Keywords

Gallium nitride
Charge transport layer
Transparent electrode
Doping
Recyclable substrate

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Lee, K. J., Yoon, S. E., Jeon, G. G., Jung, S. H., Jung, T. H., Cho, N., Yun, J. S., Kim, J., Ho-Baillie, A. W. Y., Baek, J. H., Song, M., & Kim, J. H. (2019). Reconsideration of the gallium nitride: dual functionality as an electron transporter and transparent conductor for recyclable polymer solar cell substrate applications. Solar Energy Materials and Solar Cells, 200, [109971]. https://doi.org/10.1016/j.solmat.2019.109971

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title = "Reconsideration of the gallium nitride: dual functionality as an electron transporter and transparent conductor for recyclable polymer solar cell substrate applications",

abstract = "Herein, we report the dual functionality of a single n-type gallium nitride (n-GaN) layer as an electron transporter and transparent conductor, which has applications in reusable organic solar cells. After silicon doping with an optimized electron concentration, thin-film layer of GaN showed exceptional electrical properties including charge carrier mobility of 161 cm2 V−1s−1, electrical conductivity of 1.4ⅹ106 S cm−1, and sheet resistance of 11.1 Ω cm−2. Organic solar cells based on n-GaN exhibited power conversion efficiency comparable to those based on a conventional ITO/ZnO bilayered cathode. Furthermore, the n-GaN substrates exhibited reusability; due to excellent chemical stability of n-GaN, the reconstructed organic solar cells maintained their initial performance after the substrates were recycled. We suggest a new type of reusable n-GaN cathode layer featuring an integrated electron transporting layer and transparent electrode.",

keywords = "Gallium nitride, Charge transport layer, Transparent electrode, Doping, Recyclable substrate",

author = "Lee, {Kwang Jae} and Yoon, {Sang Eun} and Jeon, {Gyeong G.} and Jung, {Sung Hoon} and Jung, {Tae Hoon} and Namchul Cho and Yun, {Jae Sung} and Jincheol Kim and Ho-Baillie, {Anita W. Y.} and Baek, {Jong Hyeob} and Myungkwan Song and Kim, {Jong H.}",

year = "2019",

month = sep,

day = "15",

doi = "10.1016/j.solmat.2019.109971",

language = "English",

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Lee, KJ, Yoon, SE, Jeon, GG, Jung, SH, Jung, TH, Cho, N, Yun, JS, Kim, J, Ho-Baillie, AWY, Baek, JH, Song, M & Kim, JH 2019, 'Reconsideration of the gallium nitride: dual functionality as an electron transporter and transparent conductor for recyclable polymer solar cell substrate applications', Solar Energy Materials and Solar Cells, vol. 200, 109971. https://doi.org/10.1016/j.solmat.2019.109971

TY - JOUR

T1 - Reconsideration of the gallium nitride

T2 - dual functionality as an electron transporter and transparent conductor for recyclable polymer solar cell substrate applications

AU - Lee, Kwang Jae

AU - Yoon, Sang Eun

AU - Jeon, Gyeong G.

AU - Jung, Sung Hoon

AU - Jung, Tae Hoon

AU - Cho, Namchul

AU - Yun, Jae Sung

AU - Kim, Jincheol

AU - Ho-Baillie, Anita W. Y.

AU - Baek, Jong Hyeob

AU - Song, Myungkwan

AU - Kim, Jong H.

PY - 2019/9/15

Y1 - 2019/9/15

N2 - Herein, we report the dual functionality of a single n-type gallium nitride (n-GaN) layer as an electron transporter and transparent conductor, which has applications in reusable organic solar cells. After silicon doping with an optimized electron concentration, thin-film layer of GaN showed exceptional electrical properties including charge carrier mobility of 161 cm2 V−1s−1, electrical conductivity of 1.4ⅹ106 S cm−1, and sheet resistance of 11.1 Ω cm−2. Organic solar cells based on n-GaN exhibited power conversion efficiency comparable to those based on a conventional ITO/ZnO bilayered cathode. Furthermore, the n-GaN substrates exhibited reusability; due to excellent chemical stability of n-GaN, the reconstructed organic solar cells maintained their initial performance after the substrates were recycled. We suggest a new type of reusable n-GaN cathode layer featuring an integrated electron transporting layer and transparent electrode.

AB - Herein, we report the dual functionality of a single n-type gallium nitride (n-GaN) layer as an electron transporter and transparent conductor, which has applications in reusable organic solar cells. After silicon doping with an optimized electron concentration, thin-film layer of GaN showed exceptional electrical properties including charge carrier mobility of 161 cm2 V−1s−1, electrical conductivity of 1.4ⅹ106 S cm−1, and sheet resistance of 11.1 Ω cm−2. Organic solar cells based on n-GaN exhibited power conversion efficiency comparable to those based on a conventional ITO/ZnO bilayered cathode. Furthermore, the n-GaN substrates exhibited reusability; due to excellent chemical stability of n-GaN, the reconstructed organic solar cells maintained their initial performance after the substrates were recycled. We suggest a new type of reusable n-GaN cathode layer featuring an integrated electron transporting layer and transparent electrode.

KW - Gallium nitride

KW - Charge transport layer

KW - Transparent electrode

KW - Doping

KW - Recyclable substrate

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DO - 10.1016/j.solmat.2019.109971

M3 - Article

AN - SCOPUS:85066241345

SN - 0927-0248

VL - 200

JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

M1 - 109971

ER -

Reconsideration of the gallium nitride: dual functionality as an electron transporter and transparent conductor for recyclable polymer solar cell substrate applications

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Keywords

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