LI Zhi-cheng, MIAO Ya, LIU Shao-wei etc. Performance Improvement of Planar Heterojunction Perovskite Solar Cells by Using PTCDI-C<sub>8</sub> as Cathode Buffer Layer[J]. Chinese Journal of Luminescence, 2018,39(9): 1291-1296
LI Zhi-cheng, MIAO Ya, LIU Shao-wei etc. Performance Improvement of Planar Heterojunction Perovskite Solar Cells by Using PTCDI-C<sub>8</sub> as Cathode Buffer Layer[J]. Chinese Journal of Luminescence, 2018,39(9): 1291-1296 DOI: 10.3788/fgxb20183909.1291.
Performance Improvement of Planar Heterojunction Perovskite Solar Cells by Using PTCDI-C8 as Cathode Buffer Layer
) was used as the interfacial layer of the electron transport layer PCBM to reduce the leakage current between PCBM and Al electrode and to improve the electron collecting efficiency of cathode. By adjusting the thickness of PTCDI-C
8
film
the interfacial contact and electron transport properties were optimized. Compared with the control devices
the power conversion efficiency (PCE) of the optimal device achieves 8.65% with 20 nm thickness PTCDI-C
8
film
with an open circuit voltage (
V
oc
) of 0.92 V
a short circuit current (
J
sc
) of 15.68 mA/cm
2
and a fill factor (FF) of 60%. PTCDI-C
8
layer can effectively block the hole transmitting to the cathode. With a higher electron mobility and stability
PTCDI-C
8
layer can reduce the environment erosion on the PCBM. In summary
the introduction of PTCDI-C
8
film as cathode buffer layer improves the performance and stability of the device.
关键词
Keywords
references
SALIBA M, MATSUI T, SEO J Y, et al.. Cesium-containing triple cation perovskite solar cells:improved stability, reproducibility and high efficiency[J]. Energy Environ. Sci., 2016, 9(6):1989-1997.
YANG W S, PARK B W, JUNG E H, et al.. Iodide management in formamidinium-lead-halide-based perovskite layers for efficient solar cells[J]. Science, 2017, 356(6345):1376-1379.
JIANG Q, ZHANG L, WANG H, et al.. Enhanced electron extraction using SnO2 for high-efficiency planar-structure HC(NH2)2PbI3-based perovskite solar cells[J]. Nat. Energy, 2017, 2(4):17060.
ESPINOSA N, SERRANO-LUJAN L, URBINA A, et al.. Solution and vapour deposited lead perovskite solar cells:ecotoxicity from a life cycle assessment perspective[J]. Sol. Energy Mater. Sol. Cells, 2015, 137:303-310.
GONG J, DARLING S B, YOU F. Perovskite photovoltaics:life-cycle assessment of energy and environmental impacts[J]. Energy & Environ. Sci., 2015, 8(7):1953-1968.
LIANG P W, LIAO C Y, CHUEH C C, et al.. Additive enhanced crystallization of solution-processed perovskite for highly efficient planar-heterojunction solar cells[J]. Adv. Mater., 2014, 26(22):3748-3754.
DOCAMPO P, BALL J M, DARWICH M, et al.. Efficient organometal trihalide perovskite planar-heterojunction solar cells on flexible polymer substrates[J]. Nat. Commun., 2013, 4(7):2761.
SHI J, LUO Y, WEI H, et al.. Modified two-step deposition method for high-efficiency TiO2/CH3NH3PbI3 heterojunction solar cells[J]. ACS Appl. Mater. Interf., 2014, 6(12):9711-9718.
BI D, EL-ZOHRY A M, HAGFELDT A, et al.. Improved morphology control using a modified two-step method for efficient perovskite solar cells[J]. ACS Appl. Mater. Interf., 2014, 6(21):18751-18757.
XIAO Z, BI C, SHAO Y, et al.. Efficient, high yield perovskite photovoltaic devices grown by interdiffusion of solution-processed precursor stacking layers[J]. Energy Environ. Sci., 2014, 7(8):2619-2623.
JENG J Y, CHIANG Y F, LEE M H, et al.. CH3NH3PbI3 perovskite/fullerene planar-heterojunction hybrid solar cells[J]. Adv. Mater., 2013, 25(27):3727-3732.
FAN R, HUANG Y, WANG L, et al.. The progress of interface design in perovskite-based solar cells[J]. Adv. Energy Mater., 2016, 6(17):1600460.
ZHOU H, CHEN Q, LI G, et al.. Interface engineering of highly efficient perovskite solar cells[J]. Science, 2014, 345(6196):542-546.
XUE Q, HU Z, LIU J, et al.. Highly efficient fullerene/perovskite planar heterojunction solar cells via cathode modification with an amino-functionalized polymer interlayer[J]. J. Mater. Chem. A, 2014, 2(46):19598-19603.
MIN J, ZHANG G, HOU Y, et al.. Interface engineering of perovskite hybrid solar cells with solution-processed perylene-diimide heterojunctions toward high performance[J]. Chem. Mater., 2014, 27(1):227-234.
CHESTERFIELD R J, MCKEEN J C, NEWMAN C R, et al.. Organic thin film transistors based on N-alkyl perylene diimides:charge transport kinetics as a function of gate voltage and temperature[J]. J. Phys. Chem. B, 2004, 108(50):19281-19292.
Effect of ITIC and PVK Co-doped PCBM on The Performance of Perovskite Solar Cells
Bimolecularly Passivated Buried Interface for Highly Efficient Perovskite Solar Cells
Solvent Regulation Strategy for Ambient Preparation of Perovskite Solar Cells
Multifunctional Orotic Acid Passivation for Efficient and Stable Perovskite Solar Cells
Efficient and Stable Perovskite Solar Cells Achieved by Subsurface Interface Modification
Related Author
LIU Shao-wei
MIAO Ya
LI Zhi-cheng
WANG Ya-ling
QIN Wen-jing
CAO Huan-qi
YANG Li-ying
YIN Shou-gen
Related Institution
Tianjin Key Laboratory for Photoelectric Materials and Devices, Tianjin University of Technology
Key Laboratory of Display Materials and Photoelectric Devices, Education Ministry of China, School of Materials Science and Engineering, Tianjin University of Technology
College of Photonic and Electronic Engineering, Fujian Normal University
College of Chemical Engineering and Material, Quanzhou Normal University
College of Physics and Information Engineering, Quanzhou Normal University