研究目的
Investigating the efficiency and stability of colorful perovskite solar cells with two-dimensional photonic crystals.
研究成果
The study successfully demonstrates the fabrication of two-dimensional IO-structured photonic crystals for PSCs, which exhibit vivid structural colors and exceptional charge transfer abilities. The IOST ETL-based PSCs achieve a power conversion efficiency of 16.8%, highlighting the potential of IO ETLs in creating efficient and aesthetically appealing solar cells.
研究不足
The study focuses on CH3NH3PbI3-based PSCs and may not be directly applicable to other perovskite compositions. The stability tests are conducted under controlled conditions and may not fully represent real-world scenarios.
1：Experimental Design and Method Selection:
The study employs the template-assisted spin-coating method to fabricate two-dimensional inverse opal (IO) structured SnO2 (IOS) and SnO2-TiO2 composite (IOST) electron transport layers (ETLs).
2：Sample Selection and Data Sources:
The samples include perovskite films deposited on FTO, IOS, and IOST substrates. Data sources include SEM, GISAXS, GI-XRD, XPS, UV-vis absorption spectra, and J-V measurements.
3：List of Experimental Equipment and Materials:
Equipment includes Nova NanoSEM 450, Xeuss
4：0 system, Bruker D2 PHASER X-ray diffractometer, ESCALAB 250Xi X-ray photoelectron spectrometer, and solar simulator SS-F5-3A. Materials include SnCl4?5H2O, PS-MS templates, and CH3NH3PbI3 perovskite. Experimental Procedures and Operational Workflow:
The procedure involves the preparation of IO ETLs, fabrication of solar cells, and characterization of the samples.
5：Data Analysis Methods:
Data analysis includes fitting Bragg scattering profiles, analyzing reflection spectra, and evaluating device performance metrics.
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Nova NanoSEM 450
Nova NanoSEM 450
FEI
Scanning electron microscopy imaging
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Bruker D2 PHASER X-ray diffractometer
D2 PHASER
Bruker
X-ray diffraction pattern recording
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ESCALAB 250Xi X-ray photoelectron spectrometer
ESCALAB 250Xi
Thermo Fisher
X-ray photoelectron spectroscopy
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Xeuss 2.0 system
Xeuss 2.0
Grazing-incidence small-angle X-ray scattering measurements
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Solar simulator SS-F5-3A
SS-F5-3A
Enlitech
Solar cell performance measurement
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