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Raman and photoluminescence investigation of CdS/CdSe quantum dots on TiO2 nanoparticles with multi-walled carbon nanotubes and their application in solar cells.
- Source :
-
Vibrational Spectroscopy . Sep2015, Vol. 80, p66-69. 4p. - Publication Year :
- 2015
-
Abstract
- Raman spectroscopy and photoluminescence (PL) were used to investigate the improved short-circuit current density ( J SC ) of CdS/CdSe quantum dot (QD)-sensitized solar cells with multi-walled carbon nanotubes (MWCNTs). Raman and PL experiments were carried out in order to explore the hot-electron and cold-electron injections, respectively. The experimental results showed that the concentration of MWCNTs influences the hot-electron and cold-electron injections from CdS/CdSe QDs to TiO 2 nanoparticles. Therefore, the improved J SC in CdS/CdSe QD-sensitized solar cells can be explained as due to the better electron injections. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09242031
- Volume :
- 80
- Database :
- Academic Search Index
- Journal :
- Vibrational Spectroscopy
- Publication Type :
- Academic Journal
- Accession number :
- 109954073
- Full Text :
- https://doi.org/10.1016/j.vibspec.2015.08.001