Abstract
We present in this communication a hybrid polymer/nanocrystal photovoltaic device architecture wherein a net poly(3-hexylthiophene) (P3HT) light-absorbing film is inserted underneath the blended layer of P3HT and PbSe nanocrystal quantum dots in the active region. Such a design features the vertical integration of planar and bulk heterojunctions, which allows for the employment of a thinner bulk heterojunction for more efficient carrier collection without an excessive reduction of the overall light absorption by the photovoltaic cell. The measured device performance represents a significant improvement over previously reported hybrid cells containing bulk heterojunctions of P3HT and Pb(S,Se) nanocrystal quantum dots.
| Original language | English (US) |
|---|---|
| Article number | 063510 |
| Journal | Applied Physics Letters |
| Volume | 95 |
| Issue number | 6 |
| DOIs | |
| State | Published - 2009 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)