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Excitation Wavelength Dependent Interfacial Charge Transfer Dynamics in a CH3NH3PbI3 Perovskite Film
- Source :
- Journal of Photopolymer Science and Technology. 31:633-642
- Publication Year :
- 2018
- Publisher :
- Technical Association of Photopolymers, Japan, 2018.
-
Abstract
- Elucidation of interfacial charge separation and recombination mechanisms is crucial to improve performance of organic-inorganic metal halide perovskite solar cells. Here, we have investigated influence of initially populated electron and hole potential levels in a perovskite conduction band (CB) and valence band (VB), respectively, by altering an excitation wavelength on interfacial charge separation and recombination dynamics in a CH3NH3PbI3 perovskite film sandwiched by a mesoporous TiO2 structure as an electron transport material (ETM) and a spiro-OMeTAD film as a hole transport material (HTM). Multi-phasic electron injection reactions are observed over
- Subjects :
- Materials science
Polymers and Plastics
Organic Chemistry
Halide
02 engineering and technology
Electron
Nanosecond
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Electron transport chain
Molecular physics
0104 chemical sciences
Materials Chemistry
Emission spectrum
0210 nano-technology
Mesoporous material
Excitation
Perovskite (structure)
Subjects
Details
- ISSN :
- 13496336 and 09149244
- Volume :
- 31
- Database :
- OpenAIRE
- Journal :
- Journal of Photopolymer Science and Technology
- Accession number :
- edsair.doi...........ad86810c83060f5cebfa1232247d1af3