Abstract
We successfully demonstrate inverted structure small-molecule (SM) solar cells with an efficiency of 7.88% using ZnO and PEIE as an interfacial layer. Modification of ZnO with a cost-effective PEIE thin layer increases the efficiency of the inverted cell as a result of reducing the work function of the cathode and suppressing the trap-assisted recombination. In addition to the high efficiency, the inverted SM solar cells are relatively stable in air compared to conventional cells.
| Original language | British English |
|---|---|
| Pages (from-to) | 2397-2402 |
| Number of pages | 6 |
| Journal | Advanced Materials |
| Volume | 25 |
| Issue number | 17 |
| DOIs | |
| State | Published - 7 May 2013 |
Keywords
- inverted solar cell
- polyelectrolyte
- solution-processed small molecule
- ZnO sol-gel