Cu(In,Ga)Se<sub>2</sub> Solar Cells Integrated with Subwavelength Structured Cover Glass Fabricated by One-Step Self-Masked Etching
We report an anti-reflective cover glass for Cu(In,Ga)Se<sub>2</sub> (CIGS) thin film solar cells. Subwavelength structures (SWSs) were fabricated on top of a cover glass using one-step self-masked etching. The etching method resulted in dense whiskers with high aspect ratio. The produce...
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| Format: | Article |
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MDPI AG
2020-09-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/11/9/877 |
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| author | Ho-Jung Jeong Ye-Chan Kim Sung-Tae Kim Min-Ho Choi Young-Hyun Song Ju-Hyung Yun Min-Su Park Jae-Hyung Jang |
| author_facet | Ho-Jung Jeong Ye-Chan Kim Sung-Tae Kim Min-Ho Choi Young-Hyun Song Ju-Hyung Yun Min-Su Park Jae-Hyung Jang |
| author_sort | Ho-Jung Jeong |
| collection | DOAJ |
| description | We report an anti-reflective cover glass for Cu(In,Ga)Se<sub>2</sub> (CIGS) thin film solar cells. Subwavelength structures (SWSs) were fabricated on top of a cover glass using one-step self-masked etching. The etching method resulted in dense whiskers with high aspect ratio. The produced structure exhibited excellent anti-reflective properties over a broad wavelength range, from the ultraviolet to the near infrared. Compared to a flat-surface glass, the average transmittance of the glass integrated with the SWSs improved from 92.4% to 95.2%. When the cover glass integrated with the SWSs was mounted onto the top of a CIGS device, the short-circuit current and the efficiency of the solar cell were enhanced by 4.38 and 6%, respectively, compared with a CIGS solar cell without cover glass. |
| first_indexed | 2024-03-10T16:10:35Z |
| format | Article |
| id | doaj.art-5e8d2de07760416997c853898afd7d77 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-10T16:10:35Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-5e8d2de07760416997c853898afd7d772023-11-20T14:29:10ZengMDPI AGMicromachines2072-666X2020-09-0111987710.3390/mi11090877Cu(In,Ga)Se<sub>2</sub> Solar Cells Integrated with Subwavelength Structured Cover Glass Fabricated by One-Step Self-Masked EtchingHo-Jung Jeong0Ye-Chan Kim1Sung-Tae Kim2Min-Ho Choi3Young-Hyun Song4Ju-Hyung Yun5Min-Su Park6Jae-Hyung Jang7Photoconversion Material Research Center, Korea Photonics Technology Institute, Gwangju 61007, KoreaSchool of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju 61005, KoreaSchool of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju 61005, KoreaSchool of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju 61005, KoreaPhotoconversion Material Research Center, Korea Photonics Technology Institute, Gwangju 61007, KoreaDepartment of Electrical Engineering, Incheon National University, Yeonsu-gu, Incheon 22012, KoreaDepartment of Electronics Engineering, Dong-A University, Saha-gu, Busan 49315, KoreaSchool of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju 61005, KoreaWe report an anti-reflective cover glass for Cu(In,Ga)Se<sub>2</sub> (CIGS) thin film solar cells. Subwavelength structures (SWSs) were fabricated on top of a cover glass using one-step self-masked etching. The etching method resulted in dense whiskers with high aspect ratio. The produced structure exhibited excellent anti-reflective properties over a broad wavelength range, from the ultraviolet to the near infrared. Compared to a flat-surface glass, the average transmittance of the glass integrated with the SWSs improved from 92.4% to 95.2%. When the cover glass integrated with the SWSs was mounted onto the top of a CIGS device, the short-circuit current and the efficiency of the solar cell were enhanced by 4.38 and 6%, respectively, compared with a CIGS solar cell without cover glass.https://www.mdpi.com/2072-666X/11/9/877subwavelength structuresolar cellsself-masked etchingoptical reflection lossenergy harvesting |
| spellingShingle | Ho-Jung Jeong Ye-Chan Kim Sung-Tae Kim Min-Ho Choi Young-Hyun Song Ju-Hyung Yun Min-Su Park Jae-Hyung Jang Cu(In,Ga)Se<sub>2</sub> Solar Cells Integrated with Subwavelength Structured Cover Glass Fabricated by One-Step Self-Masked Etching Micromachines subwavelength structure solar cells self-masked etching optical reflection loss energy harvesting |
| title | Cu(In,Ga)Se<sub>2</sub> Solar Cells Integrated with Subwavelength Structured Cover Glass Fabricated by One-Step Self-Masked Etching |
| title_full | Cu(In,Ga)Se<sub>2</sub> Solar Cells Integrated with Subwavelength Structured Cover Glass Fabricated by One-Step Self-Masked Etching |
| title_fullStr | Cu(In,Ga)Se<sub>2</sub> Solar Cells Integrated with Subwavelength Structured Cover Glass Fabricated by One-Step Self-Masked Etching |
| title_full_unstemmed | Cu(In,Ga)Se<sub>2</sub> Solar Cells Integrated with Subwavelength Structured Cover Glass Fabricated by One-Step Self-Masked Etching |
| title_short | Cu(In,Ga)Se<sub>2</sub> Solar Cells Integrated with Subwavelength Structured Cover Glass Fabricated by One-Step Self-Masked Etching |
| title_sort | cu in ga se sub 2 sub solar cells integrated with subwavelength structured cover glass fabricated by one step self masked etching |
| topic | subwavelength structure solar cells self-masked etching optical reflection loss energy harvesting |
| url | https://www.mdpi.com/2072-666X/11/9/877 |
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