Low-cost and efficient perovskite solar cells using a surfactant-modified polyaniline:poly(styrenesulfonate) hole transport material
| Autor: | Jyongsik Jang, Jaehoon Ryu, Wonjoo Na, Jungsup Lee, Kisu Lee, Kyung Hee Cho, Haejun Yu, Juyoung Yun |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Aqueous solution
Materials science General Chemical Engineering Energy conversion efficiency 02 engineering and technology Substrate (electronics) 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Indium tin oxide chemistry.chemical_compound chemistry Chemical engineering Pulmonary surfactant Polyaniline Electrochemistry Wetting 0210 nano-technology Perovskite (structure) |
| Zdroj: | Electrochimica Acta. 224:600-607 |
| ISSN: | 0013-4686 |
| DOI: | 10.1016/j.electacta.2016.12.103 |
| Popis: | A facile synthesis and modification method of polyaniline:poly(styrenesulfonate) (PANI:PSS) is reported for an efficient hole transport material (HTM) in inverted planar perovskite solar cells (PSCs). PANI:PSS with Triton X–100, a nonionic surfactant, showed enhanced hole transport capability due to improved wetting on the substrate and a surface compositional change. The surfactant lowered the surface tension of a PANI:PSS aqueous solution, which enabled uniform casting of PANI:PSS films onto an indium tin oxide (ITO) substrate without any surface treatment. Additionally, self-organization of PSS nanogranules, induced by the surfactant, provided PANI-rich surfaces that were favorable for hole extraction. When surfactant-modified PANI:PSS (1.0 wt% Triton X–100) was used as an HTM in a PSC, the average short-circuit current density increased by 23% compared with pristine PANI:PSS (i.e., from 15.02 to 18.43 mA/cm 2 ) and the fill factor also improved, eventually leading to a power conversion efficiency enhancement from 6.59 to 10.90%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect