Photocurrent Enhancement of CdSe Quantum-Dot Sensitized Solar Cells Incorporating Single-Walled Carbon Nanotubes
- Title
- Photocurrent Enhancement of CdSe Quantum-Dot Sensitized Solar Cells Incorporating Single-Walled Carbon Nanotubes
- Author
- 이휘건
- Keywords
- Quantum-Dot Sensitized Solar Cell; Quantum Dot; Single-Walled Carbon Nanotube
- Issue Date
- 2018-02
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v. 18, no. 2, page. 1347-1350
- Abstract
- We demonstrate quantum-dot sensitized solar cells (QDSSCs) which have colloidal CdSe quantum dots (TOPO-CdSe) as a sensitizer onto mesoporous TiO2 photoanodes. CdS quantum-dot (QD) layer plays a role of buffer layer for direct adsorption of TOPO-CdSe. We incorporate single-walled carbon nanotubes with TiO2 photoanode of our QDSSCs to facilitate efficient charge transfer. Short-circuit current densities (J(sc)) of our QDSSCs are enhanced while other parameters are maintained. Furthermore, we apply inert N-2 pressure onto our sensitized photoanodes and observe 44% of Jsc enhancement with respect to pristine sample. Consequently, light-harvesting efficiency of our QDSSCs are increased. Significant series resistance reduction is observed from electrochemical impedance spectroscopy, indicating better interface contact between TiO2 photoanode and TOPO-CdSe QD sensitizer are achieved.
- URI
- https://www.ingentaconnect.com/content/asp/jnn/2018/00000018/00000002/art00098https://repository.hanyang.ac.kr/handle/20.500.11754/117622
- ISSN
- 1533-4880; 1533-4899
- DOI
- 10.1166/jnn.2018.14922
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML