Different Hierarchical Nanostructured Carbons as Counter Electrodes for CdS Quantum Dot Solar Cells
- Authors
- Paul, Gouri Sankar; Kim, Jung Ho; Kim, Min-Sik; Do, Kwangseok; Ko, Jaejung; Yu, Jong-Sung
- Issue Date
- 1월-2012
- Publisher
- AMER CHEMICAL SOC
- Keywords
- mesoporous carbons; electrodes; CdS; quantum dots; solar cells
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.4, no.1, pp.375 - 381
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 4
- Number
- 1
- Start Page
- 375
- End Page
- 381
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/109177
- DOI
- 10.1021/am201452s
- ISSN
- 1944-8244
- Abstract
- CdS quantum dot sensitized solar cells based on TiO2 photoanode and nanostructured carbon as well as Pt as counter electrodes using iodide/triiodide and polysulfide electrolytes were fabricated to improve the efficiency and reduce the cost of solar cells. Compared with conventional Pt (eta = 1.05%) and CMK-3 (eta = 0.67%) counter electrodes, hollow core-mesoporous shell carbon (HCMSC) counter electrode using polysulfide electrolyte exhibits much larger incident photon to current conversion efficiency (IPCE = 27%), photocurrent density (J(sc) = 4.31 mA.cm(-2)) and power conversion efficiency (eta = 1.08%), which is basically due to superb structural characters of HCMSC such as large specific surface area, high mesoporous volume, and 3D interconnected well-developed hierarchical porosity network, which facilitate fast mass transfer with less resistance and enable HCMSC to have highly enhanced catalytic activity toward the reduction of electrolyte shuttle.
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Collections - College of Science and Technology > Department of Advanced Materials Chemistry > 1. Journal Articles
- Graduate School > Department of Material Chemistry > 1. Journal Articles
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