Abstract
A study was conducted to demonstrate highly efficient CdSe-sensitized titanium dioxide (TiO2) photoelectrode for quantum-dot (QD)-sensitized solar cell applications. The study demonstrated the assembly of CdSe into nanocrystalline TiO2 films, using a technique that coupled self-assembled monolayer (SAM) and chemical bath deposition (CBD). Colloidal CdS-QDs were first self-assembled on TiO2 surface, using a bifunctional linker, 3-mercaptopropyl trimethyoxysilane (MPTMS). It was demonstrated that the pre-assembled CdS-QD layer acts as a seed layer in the CBD process, inducing the nucleation and growth of CdSe. Mesoscopic TiO2 films were prepared by spin coating of TiO2 paste on indium-doped tin oxide (ITO) substrates, followed by sintering at 450°C for 30 minutes.
Original language | English |
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Pages (from-to) | 6903-6905 |
Number of pages | 3 |
Journal | Chemistry of Materials |
Volume | 20 |
Issue number | 22 |
DOIs | |
Publication status | Published - 2008 Nov 25 |
All Science Journal Classification (ASJC) codes
- General Chemistry
- General Chemical Engineering
- Materials Chemistry