研究目的
To overcome the trap-mediated hysteresis and instability in planar perovskite solar cells by designing and synthesizing novel fulleropyrrolidine monomers and dimers for interfacial engineering.
研究成果
The chlorinated fullerene dimer (NMBF-Cl dimer) demonstrated superior performance as an interfacial material in planar perovskite solar cells, achieving a maximum power conversion efficiency of 22.3% without hysteresis and maintaining over 98% of initial efficiency after 1000 h of ambient storage. The study highlights the potential of tailored fullerene derivatives for enhancing the efficiency and stability of perovskite solar cells.
研究不足
The study focuses on planar perovskite solar cells and the specific fullerene derivatives synthesized. The operational stability tests were conducted without encapsulation, which may not reflect real-world application conditions.
1：Experimental Design and Method Selection:
The study involved the synthesis of novel fulleropyrrolidine monomers and dimers and their incorporation between metal oxides and perovskites to modify the interface.
2：Sample Selection and Data Sources:
The samples included TiO2, SnO2, MAPbI3, and (FAPbI3)x(MAPbBr3)1-x layers with fullerene derivatives as interfacial materials.
3：List of Experimental Equipment and Materials:
Equipment included a solar simulator, PL microscopic spectrometer, EQE system, X-ray diffraction system, and XPS analyzer. Materials included SnO2 solution, methylammonium iodide, titanium dioxide solution, and various fullerene derivatives.
4：Experimental Procedures and Operational Workflow:
The fabrication of solar cells involved cleaning ITO glass, casting TiO2 or SnO2, spin-coating fullerene derivatives, depositing perovskite layers, and finally depositing silver electrodes.
5：Data Analysis Methods:
The performance of the solar cells was analyzed using J-V curves, EQE measurements, PL spectra, XRD patterns, and XPS spectra.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容-
Bis(trifluoromethane)sulfonimide lithium salt
Li-TFSI
Sigma-Aldrich
Used as a dopant in the hole-transport layer.
-
4-tert-butylpyridine
TBP
Sigma-Aldrich
Used as an additive in the hole-transport layer.
-
SnO2 solution
Used as an electron-transport material in perovskite solar cells.
-
Methylammonium iodide
Used in the preparation of perovskite layers.
-
Titanium dioxide solution
Used as an electron-transport material in perovskite solar cells.
-
Phenyl-C60-butyric acid methyl ester
PCBM
Used as a reference fullerene derivative in the study.
-
Lead (II) iodide
PbI2
Used in the preparation of perovskite layers.
-
Formamidine hydroiodide
FAI
Used in the preparation of perovskite layers.
-
2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene
Spiro-OMeTAD
Used as a hole-transport material in perovskite solar cells.
-
ITO glass
South China Science and Technology Company Limited
Used as a substrate for the solar cells.
-
登录查看剩余8件设备及参数对照表
查看全部
