Self-assembled CdS quantum dots-sensitized TiO2 nanospheroidal solar cells: Structural and charge transport analysis
- Authors
- Sudhagar, P.; Jung, June Hyuk; Park, Suil; Sathyamoorthy, R.; Ahn, Heejoon; Kang, Yong Soo
- Issue Date
- Dec-2009
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Spheroidal TiO2; DMF treatment; CdS; QDs solar cells; Charge transport
- Citation
- ELECTROCHIMICA ACTA, v.55, no.1, pp.113 - 117
- Indexed
- SCIE
SCOPUS
- Journal Title
- ELECTROCHIMICA ACTA
- Volume
- 55
- Number
- 1
- Start Page
- 113
- End Page
- 117
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/175802
- DOI
- 10.1016/j.electacta.2009.08.015
- ISSN
- 0013-4686
- Abstract
- A nanospheroidal TiO2 mesoporous layer combined with cadmium sulfide (CdS) quantum dots (QDs) as a sensitizer was firstly utilized for solar cell applications, resulting in an efficiency of 1.2% at a 1 sun condition. CdS quantum dots (similar to 18 nm) were attached to the TiO2 nanospheroidal electrode by using a chemical bath deposition technique. The influence of surface treatment using dimethyl formamide on the interconnectivity of the TiO2 nanospheroidal electrodes was investigated. The charge transport of TiO2/CdS QDs/electrolyte sandwich-type cells was characterized by electrochemical impedance spectroscopy and the device performance was compared with conventional nanospherical TiO2 (Degauusa P25) electrodes. The electrodes with nanospheroidal morphology showed better device performance than the P25 nanoparticle electrodes primarily due to both better connectivity among nanospheroidal TiO2 particles and larger mesopores, resulting in deeper penetration of the electrolyte in QD-sensitized solar cells.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 유기나노공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/175802)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.