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Thermal evaporated CuI film thickness-dependent performance of perovskite solar cells
- Source :
- Vacuum. 187:110076
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- CuI, as a promising hole transport material, possesses high hole mobility and is compatible with perovskite materials about band structure. Herein, CuI hole transport films are first fabricated by vacuum thermal evaporation procedure for n-i-p perovskite solar cell. The results show that vacuum thermal evaporated CuI films have no obvious influence on perovskite underlayer and 200 nm thick CuI film has the best carrier extraction ability. To further improve the stability of the device, reduced graphene oxides are introduced to avoid the accelerated attenuation caused by the reaction of CuI with Au. Finally, the power conversion efficiency of the dual-modified device improves to 8.69%, with the short circuit current density of 18.86 mA cm−2, the open circuit voltage of 0.832 V and the filling factor of 0.550. The work demonstrates a potential application of vacuum thermal evaporated CuI films in organic-inorganic hybrid perovskite solar cells.
- Subjects :
- 010302 applied physics
Electron mobility
Materials science
Graphene
business.industry
Open-circuit voltage
Energy conversion efficiency
Perovskite solar cell
02 engineering and technology
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
Surfaces, Coatings and Films
law.invention
law
0103 physical sciences
Thermal
Optoelectronics
0210 nano-technology
business
Instrumentation
Short circuit
Perovskite (structure)
Subjects
Details
- ISSN :
- 0042207X
- Volume :
- 187
- Database :
- OpenAIRE
- Journal :
- Vacuum
- Accession number :
- edsair.doi...........4496ff1aba72d1a37f0db8890cc68114