CdS and CdS/CdSe sensitized ZnO nanorod array solar cells prepared by a solution ions exchange process

- CdS and CdS/CdSe quantum dots are assembled on ZnO nanorods by ion exchange process.
- The CdS/CdSe sensitization of ZnO effectively extends the absorption spectrum.
- The performance of ZnO/CdS/CdSe cell is improved by extending absorption spectrum.