Thermal decomposition of bismuth oxysulfide from photoelectric Bi2O2S to superconducting Bi4O4S3.

@article{Zhang2015ThermalDO,
  title={Thermal decomposition of bismuth oxysulfide from photoelectric Bi2O2S to superconducting Bi4O4S3.},
  author={Xian Zhang and Yu-feng Liu and Ganghua Zhang and Yingqi Wang and Hui Zhang and Fuqiang Huang},
  journal={ACS applied materials & interfaces},
  year={2015},
  volume={7 7},
  pages={4442-8}
}
With the addition of oxygen into the chain-like bismuth sulfide of Bi2S3, there are two interesting functional compounds of Bi2O2S (photoelectric) and Bi4O4S3 (superconducting) containing the PbO-like [Bi2O2] layers. Nanoscale Bi2O2S crystals with an indirect band gap of 1.12 eV are synthesized via a facile hydrothermal method. This semiconductor shows excellent photoelectric response under the irradiation of visible light lamp at room temperature. Theoretical calculations and packing factor… CONTINUE READING
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