Surface Plasmon Resonance Effect in Inverted Perovskite Solar Cells.
This work reports on incorporation of spectrally tuned gold/silica (Au/SiO2) core/shell nanospheres and nanorods into the inverted perovskite solar cells (PVSC). The band gap of hybrid lead halide iodide (CH3NH3PbI3) can be gradually increased by replacing iodide with increasing amounts of bromide, which can not only offer an appreciate solar radiation window for the surface plasmon resonance effect utilization, but also potentially result in a large open circuit voltage. The introduction of localized surface plasmons in CH3NH3PbI2.85Br0.15-based photovoltaic system, which occur in response to electromagnetic radiation, has shown dramatic enhancement of exciton dissociation. The synchronized improvement in photovoltage and photocurrent leads to an inverted CH3NH3PbI2.85Br0.15planar PVSC device with power conversion efficiency of 13.7%. The spectral response characterization, time resolved photoluminescence, and transient photovoltage decay measurements highlight the efficient and simple method for perovskite devices.
Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology 1037 Luoyu Road Wuhan 430074 Hubei P. R. China.
Jin
J
Cui
Wuhan National High Magnetic Field Center Huazhong University of Science and Technology 1037 Luoyu Road Wuhan 430074 Hubei P. R. China.
Cheng
C
Chen
Wuhan National High Magnetic Field Center Huazhong University of Science and Technology 1037 Luoyu Road Wuhan 430074 Hubei P. R. China.
Junbo
J
Han
Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology 1037 Luoyu Road Wuhan 430074 Hubei P. R. China.
Kun
K
Cao
Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology 1037 Luoyu Road Wuhan 430074 Hubei P. R. China.
Wenjun
W
Zhang
Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology 1037 Luoyu Road Wuhan 430074 Hubei P. R. China.
Yan
Y
Shen
Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology 1037 Luoyu Road Wuhan 430074 Hubei P. R. China.
Mingkui
M
Wang
hybrid; optical manipulation; perovskite; solar cell; surface plasmon resonance