March 1, 1994The Journal of Physical Chemistry
Quantum-Sized PbS, CdS, Ag2S, Sb2S3, and Bi2S3 Particles as Sensitizers for Various Nanoporous Wide-Bandgap Semiconductors
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Implication
Experimental study demonstrates photosensitization of nanoporous wide-bandgap semiconductors using quantum-sized metal sulfide particles, highlighting mechanisms to improve solar energy conversion.
Key Points
- Investigate the capability of size-quantized metal sulfide nanoparticles to act as optical sensitizers across various nanoporous wide-bandgap semiconductor electrodes.
- Synthesized quantum-sized metal sulfide particles including PbS, CdS, Ag2S, Sb2S3, and Bi2S3.
- Incorporated the quantum-sized particles onto porous substrates composed of wide-bandgap semiconductor oxides.
- Characterized the photoelectrochemical behavior, spectral response, and charge transfer dynamics across the semiconductor interfaces.
- Demonstrated extended light absorption into the visible and near-infrared spectral regimes mediated by the quantum-sized sulfide particles.
- Confirmed photoinduced electron injection from the excited sulfide nanoparticles into the conduction band of the wide-bandgap semiconductor matrix.
Cite This Study
Vogel et al. (1994) studied this question.