Electron injection from CdTe quantum dots (CdTe-QDs) into ultra-thin CdS layers has been demonstrated by transient and spectral dependent surface photovoltage (SPV) methods while the thickness of the CdS layer was varied systematically between several nm and tens on nm. Signal heights and decay times at half maximum were correlated with the thickness of the CdS layer. The decay times increased by several orders of magnitude for electrons transferred across the charge-selective CdS/CdTe-QD contact in comparison to electrons photo-generated in the CdS layer.
|Number of pages||7|
|Publication status||Published - 1 Dec 2011|
|Event||Advanced Inorganic Materials and Concepts for Photovoltaics - Symposium R at the E-MRS 2011 Spring Meeting - Nice, France|
Duration: 9 May 2011 → 13 May 2011
- Quantum dots
- Surface photovoltage
ASJC Scopus subject areas