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DC Field | Value | Language |
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dc.citation.number | 48 | - |
dc.citation.startPage | 2003865 | - |
dc.citation.title | SMALL | - |
dc.citation.volume | 16 | - |
dc.contributor.author | Kim, Joo-Hyun | - |
dc.contributor.author | Kim, Min Kyu | - |
dc.contributor.author | Gadisa, Abay | - |
dc.contributor.author | Stuard, Samuel J. | - |
dc.contributor.author | Nahid, Masrur Morshed | - |
dc.contributor.author | Kwon, Soyeong | - |
dc.contributor.author | Bae, Soohyun | - |
dc.contributor.author | Kim, Byoungwoo | - |
dc.contributor.author | Park, Gi Soon | - |
dc.contributor.author | Won, Da Hye | - |
dc.contributor.author | Lee, Dong Ki | - |
dc.contributor.author | Kim, Dong-Wook | - |
dc.contributor.author | Shin, Tae Joo | - |
dc.contributor.author | Do, Young Rag | - |
dc.contributor.author | Kim, Jihyun | - |
dc.contributor.author | Choi, Won Jun | - |
dc.contributor.author | Ade, Harald | - |
dc.contributor.author | Min, Byoung Koun | - |
dc.date.accessioned | 2023-12-21T16:39:35Z | - |
dc.date.available | 2023-12-21T16:39:35Z | - |
dc.date.created | 2020-11-25 | - |
dc.date.issued | 2020-12 | - |
dc.description.abstract | Solution-processed Cu(In,Ga)(S,Se)(2) (CIGS) has a great potential for the production of large-area photovoltaic devices at low cost. However, CIGS solar cells processed from solution exhibit relatively lower performance compared to vacuum-processed devices because of a lack of proper composition distribution, which is mainly instigated by the limited Se uptake during chalcogenization. In this work, a unique potassium treatment method is utilized to improve the selenium uptake judiciously, enhancing grain sizes and forming a wider bandgap minimum region. Careful engineering of the bandgap grading structure also results in an enlarged space charge region, which is favorable for electron-hole separation and efficient charge carrier collection. Besides, this device processing approach has led to a linearly increasing electron diffusion length and carrier lifetime with increasing the grain size of the CIGS film, which is a critical achievement for enhancing photocurrent yield. Overall, 15% of power conversion efficiency is achieved in solar cells processed from environmentally benign solutions. This approach offers critical insights for precise device design and processing rules for solution-processed CIGS solar cells. | - |
dc.identifier.bibliographicCitation | SMALL, v.16, no.48, pp.2003865 | - |
dc.identifier.doi | 10.1002/smll.202003865 | - |
dc.identifier.issn | 1613-6810 | - |
dc.identifier.scopusid | 2-s2.0-85096677620 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/48781 | - |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/full/10.1002/smll.202003865 | - |
dc.identifier.wosid | 000585140900001 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Morphological-Electrical Property Relation in Cu(In,Ga)(S,Se)(2) Solar Cells: Significance of Crystal Grain Growth and Band Grading by Potassium Treatment | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | average domain spacing | - |
dc.subject.keywordAuthor | band grading | - |
dc.subject.keywordAuthor | CIGS solar cell | - |
dc.subject.keywordAuthor | electron diffusion length | - |
dc.subject.keywordAuthor | solution process | - |
dc.subject.keywordPlus | CU(IN,GA)SE-2 THIN-FILMS | - |
dc.subject.keywordPlus | POSTDEPOSITION TREATMENT | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | CHALCOPYRITE | - |
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