Enhanced reproducibility of planar perovskite solar cells by fullerene doping with silver nanoparticles
| Autor: | Fernando Ely, Marissa Higgins, Seungjin Nam, Renata C. Nome, Hyunjoo Choi, Rene A. Nome, Diego P. dos Santos, Manuel Quevedo-Lopez |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Photocurrent
Materials science Doping General Physics and Astronomy Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Silver nanoparticle 0104 chemical sciences law.invention PEDOT:PSS Chemical engineering law Solar cell Charge carrier 0210 nano-technology Perovskite (structure) |
| Zdroj: | Journal of Applied Physics. 124:065306 |
| ISSN: | 1089-7550 0021-8979 |
| DOI: | 10.1063/1.5036643 |
| Popis: | A small cross-section of silver nanoparticles (AgNPs) placed at the rear-part of the solar cell avoids the parasitic absorption of the nanoparticles which is the biggest barrier for plasmonic structures when acting as photocurrent enhancers. Herein, we demonstrate p-i-n planar perovskite solar cells with the structure ITO/PEDOT:PSS/MAPbI3/PCBM/Ni:Au, where the PCBM electron extraction layer (EEL) was intentionally modified with variable amounts of AgNPs. The addition of small amounts of AgNPs (e.g., 5 wt. %) into the PCBM improved the overall reproducibility and reliability of the solar cell fabrication process after optimization. Plasmonic simulations suggest that any plasmonic-optical effects are relatively small compared to sample absorbance due to perovskite alone. It has been concluded that plasmonic-electrical effects play a major role in averaged performance improvement. Therefore, the addition of small AgNPs in low concentration to the EEL layer accounts for higher Jsc, Voc and FF as a result of a better perovskite coverage by the EEL and an improved charge carrier collection as evidenced by morphological and electrical analysis. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|