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| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 19일 (금요일) 11:00~12:30 |
| Code |
MAT.P-392 |
| Subject |
Improved Photocurrent Extraction from PbS Quantum Dot Photovoltaics by Incorporation of Fullerene-Encapsulated Single-walled Carbon Nanotubes |
| Authors |
Jonghee Yang, Junyoung Lee, Whikun Yi*
Department of Chemistry, Hanyang University, Korea
|
| Abstract |
Single-walled carbon nanotubes (SWNTs) and C60-encapsulated SWNTs (C60@SWNT), are incorporated with a 1,2-ethanedithiol (EDT) treated PbS QD layer, which plays a role of hole extraction layer in PbS quantum dot photovoltaics (QDPVs). QDPVs incorporating SWNT (or C60@SWNT) demonstrate significantly improved performance. photoinduced charge extraction by linearly increasing voltage (photo-CELIV) measurement, demonstrates that the incorporation of SWNT species provides efficient hole transport through the EDT-PbS film and suppresses the bimolecular recombination in the film, resulting in enhanced hole diffusion length. Considering depletion width and diffusion length of hole, the required transport length for hole extraction from QDPV is fully covered by incorporating C60@SWNT with EDT-PbS QD, indicating photocurrent extraction from QDPV is significantly improved. |
| E-mail |
jhyang1213@hanyang.ac.kr |
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123rd General Meeting of the KCS