Enhanced Light Harvesting and Electron Lifetime of Front Side-illuminated CdSe Quantum Dot-assembled TiO2 Nanotube Arrays for Quantum Dot-sensitized Solar Cells

Title
Enhanced Light Harvesting and Electron Lifetime of Front Side-illuminated CdSe Quantum Dot-assembled TiO2 Nanotube Arrays for Quantum Dot-sensitized Solar Cells
Author(s)
안광순정성우이수용박민아김재홍강순형[강순형]김현수[김현수]최철종[최철종]
Keywords
DYE; FILMS; EFFICIENCY; PHOTOELECTRODES; CIRCUIT
Issue Date
201407
Publisher
TAYLOR & FRANCIS LTD
Citation
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.598, no.1, pp.144 - 153
Abstract
CdSe quantum dots (QDs)-assembled, free-standing TiO2 nanotube arrays (TNTs) are transferred to transparent fluorine-doped tin oxides (FTOs) using a sol-gel process. The TNTs on the FTO (FTO/TNT) not only provide an efficient 1-dimensional electron pathway with few recombination centers, but also allow front side illumination through the transparent FTO, providing a significantly enhanced electron lifetime and light harvesting compared to conventional TNTs on Ti foil and TiO2 nanoparticles-based mesoporous films on the FTO. These effects help improve significantly the short circuit current and open-circuit voltage of quantum dot-sensitized solar cells (QD-SSCs).
URI
http://hdl.handle.net/YU.REPOSITORY/31531http://dx.doi.org/10.1080/15421406.2014.933386
ISSN
1542-1406
Appears in Collections:
공과대학 > 화학공학부 > Articles
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