Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김동욱 | * |
dc.date.accessioned | 2021-02-25T16:31:07Z | - |
dc.date.available | 2021-02-25T16:31:07Z | - |
dc.date.issued | 2020 | * |
dc.identifier.issn | 1613-6810 | * |
dc.identifier.issn | 1613-6829 | * |
dc.identifier.other | OAK-28421 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/257054 | - |
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.language | English | * |
dc.publisher | WILEY-V C H VERLAG GMBH | * |
dc.subject | average domain spacing | * |
dc.subject | band grading | * |
dc.subject | CIGS solar cell | * |
dc.subject | electron diffusion length | * |
dc.subject | solution process | * |
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.relation.issue | 48 | * |
dc.relation.volume | 16 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.journaltitle | SMALL | * |
dc.identifier.doi | 10.1002/smll.202003865 | * |
dc.identifier.wosid | WOS:000585140900001 | * |
dc.identifier.scopusid | 2-s2.0-85096677620 | * |
dc.author.google | Kim, Joo-Hyun | * |
dc.author.google | Kim, Min Kyu | * |
dc.author.google | Gadisa, Abay | * |
dc.author.google | Stuard, Samuel J. | * |
dc.author.google | Nahid, Masrur Morshed | * |
dc.author.google | Kwon, Soyeong | * |
dc.author.google | Bae, Soohyun | * |
dc.author.google | Kim, Byoungwoo | * |
dc.author.google | Park, Gi Soon | * |
dc.author.google | Won, Da Hye | * |
dc.author.google | Lee, Dong Ki | * |
dc.author.google | Kim, Dong-Wook | * |
dc.author.google | Shin, Tae Joo | * |
dc.author.google | Do, Young Rag | * |
dc.author.google | Kim, Jihyun | * |
dc.author.google | Choi, Won Jun | * |
dc.author.google | Ade, Harald | * |
dc.author.google | Min, Byoung Koun | * |
dc.contributor.scopusid | 김동욱(57203350633) | * |
dc.date.modifydate | 20240123114549 | * |