Enhancement of Photo-Current Conversion Efficiency in a CdS/CdSe Quantum-Dot-Sensitized Solar Cell Incorporated with Single-Walled Carbon Nanotubes
- Authors
- Park, Hyunjune; Lee, Jongtaek; Park, Taehee; Lee, Sanghun; Yi, Whikun
- Issue Date
- Feb-2015
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Quantum Dot Sensitized Solar Cell; TiO2; CdS; CdSe; Single Walled Carbon Nanotubes
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.15, no.2, pp.1614 - 1617
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 15
- Number
- 2
- Start Page
- 1614
- End Page
- 1617
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/143246
- DOI
- 10.1166/jnn.2015.9319
- ISSN
- 1533-4880
- Abstract
- Cadmium sulfide (CdS) and cadmium selenide (CdSe) are sequentially assembled onto a nanocrystalline TiO2 film to create a quantum-dot (QD)-sensitized solar cell application by a successive ionic layer adsorption and reaction (SILAR) method. The results show that CdS and CdSe QDs have a complementary effect in the performance of light harvest of solar cell. Single-walled carbon nanotubes (SWNTs) are incorporated with a CdS/CdSe QDs solar cell by mixing them with TiO2 film to enhance electron transfer. SWNTs are also sprayed onto CdSe QDs (SWNTs onto CdSe) to apply p(+) type properties of SWNTs. Absorbance is increased in a wide wavelength range. In particular, cells having the sprayed SWNTs onto the QDs show a clear increase in absorbance at a low wavelength region. The fill factor of CdS/CdSe QDs solar cell with SWNTs is higher than that without SWNTs, indicating the decrease in loss of electron from TiO2 to QDs. Short-circuit current in a QD-sensitized solar cell having SWNTs on CdSe shows maximum value. Photo-current conversion efficiency of cells is increased in both cell types containing SWNTs at 10 similar to 17% compared with pristine cells. We expect that solar cells using SWNTs will affect future energy technology and devices.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 자연과학대학 > 서울 화학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/143246)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.