Synthesis of CdSe-TiO2 nanocomposites and their applications to TiO2 sensitized solar cells.
CdSe-TiO(2) nanocomposites were synthesized via aminolysis of Ti-oleate complexes in the presence of CdSe nanocrystals, and their application as sensitizers for TiO(2) solar cells was investigated. The formation of CdSe-TiO(2) nanocomposites was confirmed using transmission electron microscopy and Raman spectroscopy. The emission spectrum of CdSe-TiO(2) nanocomposites revealed photoinduced charge separation at the CdSe-TiO(2) interface of the composite. The photocurrent-voltage properties of CdSe-TiO(2)-sensitized TiO(2) particle films compared favorably with those of CdSe-sensitized TiO(2) films. Evidence was also found indicating that the TiO(2) component of the composite protects CdSe against degradation during film annealing.
Kim
Jinyoung
J
Chemical and Biosciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, USA. jinyoung_kim@nrel.gov
Choi
Sungbum
S
Noh
Junhong
J
Yoon
Sunghun
S
Lee
Sangwook
S
Noh
Taehoon
T
Frank
Arthur J
AJ
Hong
Kugsun
K
D019187:Cadmium Compounds / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure*; D018036:Selenium Compounds / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*; D014961:X-Ray Diffraction
D019187:Cadmium Compounds; D018036:Selenium Compounds; C009495:titanium dioxide; C058667:cadmium selenide; D014025:Titanium