Abstract
In this work, we have demonstrated that the electric field assisted poling of the donor polymer possessing con- formationally labile nitrile groups increases dipolar polarization and dielectric permittivity. We find that the enhanced dielectric permittivity of the donor polymer reduces non-geminate recombination losses in bulk-heterojunction (BHJ) solar cells (SCs), resulting in increased open circuit voltage (Foe) compared with unpoled devices. This result reveals the importance of dielectric permittivity of polymers and also signifies the promising applicability of electric field assisted poling for high dielectric polymers in BHJ SCs.
| Translated title of the contribution | 고분자 태양전지에서의 고분자 유전상수 증가에 따른 재결합 손실 감소 |
|---|---|
| Original language | English |
| Pages (from-to) | 708-713 |
| Journal | Polymer (Korea) |
| Volume | 42 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Jul 2018 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Research Keywords
- Charge dynamics
- Charge recombination
- Dielectric permittivity
- Electric field assisted poling
- Polymer solar cell
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