Double-graded bandgap in Cu(In,Ga)Se-2 thin film solar cells by low toxicity selenization process
| dc.citation.epage | en_US | |
| dc.citation.issue | 7 | en_US |
| dc.citation.volume | 105 | en_US |
| dc.citation.woscount | 0 | |
| dc.contributor.author | Wang, Yi-Chih | en_US |
| dc.contributor.author | Shieh, Han-Ping D. | en_US |
| dc.contributor.department | 交大名義發表 | zh_TW |
| dc.contributor.department | 光電工程學系 | zh_TW |
| dc.contributor.department | 顯示科技研究所 | zh_TW |
| dc.contributor.department | National Chiao Tung University | en_US |
| dc.contributor.department | Department of Photonics | en_US |
| dc.contributor.department | Institute of Display | en_US |
| dc.date.accessioned | 2014-12-08T15:36:49Z | |
| dc.date.available | 2014-12-08T15:36:49Z | |
| dc.date.issued | 2014-08-18 | en_US |
| dc.description.abstract | A low-toxic selenization with post gallium diffusion (PGD) treatment has been demonstrated to increase the bandgap in the surface Cu(In,Ga)Se-2 (CIGSe) absorbers and to form double-graded bandgap profiles to improve the cell efficiency. The CIGSe absorber with PGD for 5 min increased open-circuit voltage from 0.49 to 0.66V and efficiency from 9.2% to 13.2%, contributed by the enhancement of carrier recombination in the space-charge region. The reduction in short-circuit current from 30.8 to 29.9 mA/cm(2), attributed to the absorption loss in long-wavelength regions, can be potentially improved by further optimization of the minimum bandgap value in gradient valley. (C) 2014 AIP Publishing LLC. | en_US |
| dc.identifier.doi | 10.1063/1.4893713 | en_US |
| dc.identifier.issn | 0003-6951 | en_US |
| dc.identifier.journal | APPLIED PHYSICS LETTERS | en_US |
| dc.identifier.uri | http://dx.doi.org/10.1063/1.4893713 | en_US |
| dc.identifier.uri | https://ir.lib.nycu.edu.tw/handle/11536/25221 | |
| dc.identifier.wosnumber | WOS:000341189800106 | |
| dc.language.iso | en_US | en_US |
| dc.title | Double-graded bandgap in Cu(In,Ga)Se-2 thin film solar cells by low toxicity selenization process | en_US |
| dc.type | Article | en_US |