Abstract
Bulk heterojunction (BHJ) film is potential for the solar cells based on the photon-absorbers with a limited charge diffusion length. Here, for the first time, a patterned mesoporous film featuring the voids surrounded by the mesoporous walls of TiO2 nanoparticles is created for loading CuInS2 nanoparticles to prepare CuInS2-based BHJ film, resulting in a patterned mesoscopic CuInS2 solar cell with an efficiency of 6.23%. The voids are derived from the phase-separated poly (ethylene glycol) (PEG) aggregates during spin-casting the mixture of TiO2 slurry and PEG. It is demonstrated that the patterned mesoscopic CuInS2 solar cell is much more efficient than conventional/non-patterned counterpart device.
| Original language | English |
|---|---|
| Article number | 132276 |
| Journal | Materials Letters |
| Volume | 319 |
| DOIs | |
| Publication status | Published - 15 Jul 2022 |
| Externally published | Yes |
Keywords
- Bulk heterojunction
- CuInS
- Porous materials
- Solar cells
- Solar energy materials