Flexible photovoltaic cells fabricated utilizing ZnO quantum dot/carbon nanotube heterojunctions
- Authors
- Li, Fushan; Son, Dong Ick; Cho, Sung Hwan; Kim, Won Tae; Kim, Tae Whan
- Issue Date
- Apr-2009
- Publisher
- IOP PUBLISHING LTD
- Citation
- NANOTECHNOLOGY, v.20, no.15, pp.1 - 4
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANOTECHNOLOGY
- Volume
- 20
- Number
- 15
- Start Page
- 1
- End Page
- 4
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/177031
- DOI
- 10.1088/0957-4484/20/15/155202
- ISSN
- 0957-4484
- Abstract
- In situ growth of ZnO quantum dots (QDs) on the surface of multi-walled carbon nanotubes (MWCNTs) was presented, and their application in photovoltaic cells by using flexible polyethylene terephthalate substrates was demonstrated. High-resolution transmission electron microscopy images revealed the conjugation of ZnO QDs with MWCNTs. Photoluminescence spectra indicated that the charge transfer efficiency at ZnO QD-MWCNT heterojunctions was above 90%, as confirmed by time-resolved photoluminescence measurements. Current-voltage measurements on the flexible devices fabricated utilizing ZnO QD-MWCNT heterojunctions showed the robust nature of the ZnO QD-MWCNT-based photovoltaic cells and their potential applications as the power source for flexible hand-held consumer electronics.
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