Inverted bulk-heterojunction polymer solar cells using a sputter-deposited Al-doped ZnO electron transport layer

Sang Jin Lee; Soyeon Kim; Dong Chan Lim; Dong Hun Kim; Sahn Nahm; Seung Ho Han

doi:10.1016/j.jallcom.2018.11.040

Inverted bulk-heterojunction polymer solar cells using a sputter-deposited Al-doped ZnO electron transport layer

Sang Jin Lee, Soyeon Kim, Dong Chan Lim, Dong Hun Kim, Sahn Nahm, Seung Ho Han

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

22 Citations (Scopus)

Abstract

In this study, we realized an inverted polymer solar cell by depositing Al-doped ZnO (AZO) through room temperature radio-frequency magnetron sputtering as an electron transport layer (ETL) between an organic PTB7 and PC₇₁BM mixture active layer and indium tin oxide (ITO) transparent electrode. The crystal structure of the AZO thin films changed as the Ar gas pressure was varied. X-ray diffraction showed that the highest crystallinity was obtained at 70 mTorr. Further experiments were carried out to determine the optimum thickness. An AZO film deposited on a glass substrate with a thickness of 100 nm had an average visible-light transmittance of 83.3% and an electrical resistivity of 6.6 × 10⁻³ Ω·cm. The power conversion efficiency (PCE) showed no significant difference with regard to thickness, and ranged from of 7% to 8%. The 100-nm AZO thin film had the highest PCE of 7.87%, which is approximately 90% higher than that of the sample without an ETL.

Original language	English
Pages (from-to)	717-722
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	777
DOIs	https://doi.org/10.1016/j.jallcom.2018.11.040
Publication status	Published - 2019 Mar 10

Bibliographical note

Funding Information:
This work was supported by the Energy Technology Development Project (No. 2017300014180 , Development of transparent flexible metal grid electrode films for solar cell application) and Material Component Technology Development Program (No. 10077718 , Development of continuous production technology for low-cost, large-area flexible electrode in solar cell application) funded by the Ministry of Trade, Industry & Energy ( MOTIE ) of the Republic of Korea.

Publisher Copyright:
© 2018 Elsevier B.V.

Keywords

Al-doped ZnO thin film
Electron transport layer
Polymer solar cells
Power conversion efficiency
RF magnetron sputtering

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2018.11.040

Cite this

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title = "Inverted bulk-heterojunction polymer solar cells using a sputter-deposited Al-doped ZnO electron transport layer",

abstract = "In this study, we realized an inverted polymer solar cell by depositing Al-doped ZnO (AZO) through room temperature radio-frequency magnetron sputtering as an electron transport layer (ETL) between an organic PTB7 and PC71BM mixture active layer and indium tin oxide (ITO) transparent electrode. The crystal structure of the AZO thin films changed as the Ar gas pressure was varied. X-ray diffraction showed that the highest crystallinity was obtained at 70 mTorr. Further experiments were carried out to determine the optimum thickness. An AZO film deposited on a glass substrate with a thickness of 100 nm had an average visible-light transmittance of 83.3% and an electrical resistivity of 6.6 × 10−3 Ω·cm. The power conversion efficiency (PCE) showed no significant difference with regard to thickness, and ranged from of 7% to 8%. The 100-nm AZO thin film had the highest PCE of 7.87%, which is approximately 90% higher than that of the sample without an ETL.",

keywords = "Al-doped ZnO thin film, Electron transport layer, Polymer solar cells, Power conversion efficiency, RF magnetron sputtering",

author = "Lee, {Sang Jin} and Soyeon Kim and Lim, {Dong Chan} and Kim, {Dong Hun} and Sahn Nahm and Han, {Seung Ho}",

note = "Funding Information: This work was supported by the Energy Technology Development Project (No. 2017300014180 , Development of transparent flexible metal grid electrode films for solar cell application) and Material Component Technology Development Program (No. 10077718 , Development of continuous production technology for low-cost, large-area flexible electrode in solar cell application) funded by the Ministry of Trade, Industry & Energy ( MOTIE ) of the Republic of Korea. Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

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AU - Nahm, Sahn

AU - Han, Seung Ho

N1 - Funding Information: This work was supported by the Energy Technology Development Project (No. 2017300014180 , Development of transparent flexible metal grid electrode films for solar cell application) and Material Component Technology Development Program (No. 10077718 , Development of continuous production technology for low-cost, large-area flexible electrode in solar cell application) funded by the Ministry of Trade, Industry & Energy ( MOTIE ) of the Republic of Korea. Publisher Copyright: © 2018 Elsevier B.V.

PY - 2019/3/10

Y1 - 2019/3/10

N2 - In this study, we realized an inverted polymer solar cell by depositing Al-doped ZnO (AZO) through room temperature radio-frequency magnetron sputtering as an electron transport layer (ETL) between an organic PTB7 and PC71BM mixture active layer and indium tin oxide (ITO) transparent electrode. The crystal structure of the AZO thin films changed as the Ar gas pressure was varied. X-ray diffraction showed that the highest crystallinity was obtained at 70 mTorr. Further experiments were carried out to determine the optimum thickness. An AZO film deposited on a glass substrate with a thickness of 100 nm had an average visible-light transmittance of 83.3% and an electrical resistivity of 6.6 × 10−3 Ω·cm. The power conversion efficiency (PCE) showed no significant difference with regard to thickness, and ranged from of 7% to 8%. The 100-nm AZO thin film had the highest PCE of 7.87%, which is approximately 90% higher than that of the sample without an ETL.

AB - In this study, we realized an inverted polymer solar cell by depositing Al-doped ZnO (AZO) through room temperature radio-frequency magnetron sputtering as an electron transport layer (ETL) between an organic PTB7 and PC71BM mixture active layer and indium tin oxide (ITO) transparent electrode. The crystal structure of the AZO thin films changed as the Ar gas pressure was varied. X-ray diffraction showed that the highest crystallinity was obtained at 70 mTorr. Further experiments were carried out to determine the optimum thickness. An AZO film deposited on a glass substrate with a thickness of 100 nm had an average visible-light transmittance of 83.3% and an electrical resistivity of 6.6 × 10−3 Ω·cm. The power conversion efficiency (PCE) showed no significant difference with regard to thickness, and ranged from of 7% to 8%. The 100-nm AZO thin film had the highest PCE of 7.87%, which is approximately 90% higher than that of the sample without an ETL.

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KW - Power conversion efficiency

KW - RF magnetron sputtering

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Inverted bulk-heterojunction polymer solar cells using a sputter-deposited Al-doped ZnO electron transport layer

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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