Improved Performance of CdS/CdTe Quantum Dot-Sensitized Solar Cells Incorporating Single-Walled Carbon Nanotubesopen access
- Authors
- Shin, Hokyeong; Park, Taehee; Lee, Jongtaek; Lee, Junyoung; Yang, Jonghee; Han, Jin Wook; Yi, Whikun
- Issue Date
- Oct-2014
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- Quantum dot-sensitized solar cell; CdTe; CdS; Single-walled carbon nanotube
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.35, no.10, pp.2895 - 2900
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY
- Volume
- 35
- Number
- 10
- Start Page
- 2895
- End Page
- 2900
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/144500
- DOI
- 10.5012/bkcs.2014.35.10.2895
- ISSN
- 0253-2964
- Abstract
- We fabricated quantum dot-sensitized solar cells (QDSSCs) using cadmium sulfide (CdS) and cadmium telluride (CdTe) quantum dots (QDs) as sensitizers. A spin coated TiO2 nanoparticle (NP) film on tin-doped indium oxide glass and sputtered Au on fluorine-doped tin oxide glass were used as photo-anode and counter electrode, respectively. CdS QDs were deposited onto the mesoporous TiO2 layer by a successive ionic layer adsorption and reaction method. Pre-synthesized CdTe QDs were deposited onto a layer of CdS QDs using a direct adsorption technique. CdS/CdTe QDSSCs had high light harvesting ability compared with CdS or CdTe QDSSCs. QDSSCs incorporating single-walled carbon nanotubes (SWNTs), sprayed onto the substrate before deposition of the next layer or mixed with TiO(2)NPs, mostly exhibited enhanced photo cell efficiency compared with the pristine cell. In particular, a maximum rate increase of 24% was obtained with the solar cell containing a TiO2 layer mixed with SWNTs.
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