BROWSE
Detail
Journal Article
Highly Efficient Ag-alloyed Cu(In,Ga)Se2 Solar Cells with Wide Bandgaps and Their Application to Chalcopyrite-based Tandem Solar Cells
Cited 38 time in 
Download 6 time
Share 
Download 6 time
Share
- Authors
- Kihwan Kim, Seung Kyu Ahn, Jang Hoon Choi, Jinsoo Yoo, Young-Joo Eo, Jun-Sik Cho, Ara Cho, Jihye Gwak, Soomin Song, Dae-Hyung Cho, Yong-Duck Chung, Jae Ho Yun
- Issue Date
- 2018-06
- Citation
- Nano Energy, v.48, pp.345-352
- ISSN
- 2211-2855
- Publisher
- Elsevier
- Language
- English
- Type
- Journal Article
- Project Code
- 17JB1600, Development of colorful flexible thin film solar cells with nontoxic buffer layer, Chung Yong-Duck
- Abstract
- In this work, Ag alloying effects in wide-bandgap Cu(In,Ga)Se2 (CIGS) solar cells are investigated, and their application in tandem solar cells is attempted. With a three-stage process, highly efficient Ag-alloyed CIGS (ACIGS) solar cells with Eg ?돟 1.4 eV are fabricated; the benefits of Ag alloying are discussed with a focus on the control of structural/electronic disorders. The ACIGS solar cells are found to exhibit particularly improved device performance in specific compositions; in general, Ag alloying helps to enhance VOC in wide-bandgap CIGS solar cells. With wide-bandgap ACIGS cells as a top subcell, various kinds of chalcopyrite-based tandem (two-junction and two-terminal) cells are demonstrated. Prospects and limitations of chalcopyrite-based tandem cells are investigated by examining beam-splitting tandem, mechanically stacked tandem, and monolithic tandem cells.
- KSP Keywords
- Alloying effects, Beam splitting, CIGS solar cell, Wide Band Gap, device performance, highly efficient, monolithic tandem, tandem cell, tandem solar cell, three-stage process, two-terminal