A CdS/Bi2S3 bilayer and a poly(3,4-ethylenedioxythiophene)/S2− interface control quantum dot solar cell performance

- Fabrication of a CdS/Bi2S3 quantum dot (QD) bilayer electrode for solar cells.
- Electron transfer occurs from CdS to Bi2S3, hole transfer from CdS to S2− electrolyte.
- Bi2S3 QDs have high intrinsic nanoscale electronic conductivity (0.06 S cm−1).
- Bi2S3 QDs convert thermal energy into current, advantageous for solar cells.
- PEDOT/S2− interface is chemically reduced, allows facile electron passage.