perovskite solar cells(钙钛矿太阳能电池)
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Supporting information for
Flexible, Hole Transporting Layer-free and Stable CH3NH3PbI3/PC61BM Planar
Heterojunction Perovskite Solar Cells
Yong Zhang a, Xiaotian Hu a, Lie Chen a,b, Zengqi Huang a, Qingxia Fu a, Yawen Liu a,
Lin Zhang a, Yiwang Chen*a,b
a College of Chemistry/Institute of Polymers, Nanchang University, 999 Xuefu
Avenue, Nanchang 330031, China
b Jiangxi Provincial Key Laboratory of New Energy Chemistry, Nanchang University,
999 Xuefu Avenue, Nanchang 330031, China
Corresponding author. Tel.: +86 791 83968703; fax: +86 791 83969561. E-mail: ywchen@ (Y. Chen)
on ITO/PEDOT:PSS substrate.
Figure S2. Tapping-mode atomic force microscopy phase images of (a) ITO substrate, (b) PEDOT:PSS on ITO substrate, (c) CH3NH3PbI3on bare ITO substrate, (d)
CH3NH3PbI3 on ITO/PEDOT:PSS substrate with an area of 5μm×5μm.
400
500
600
700
800
0.00.51.01.52.02.53.0
3.5
4.0
A b s o r b a n c e
Wavelength (nm)
ITO/CH 3NH 3PbI 3
ITO/PEDOT:PSS/CH 3NH 3PbI 3
Figure S3. The absorbance of the CH 3NH 3PbI 3 perovskite films based on HTL-free and PEDOT:PSS HTL.
In, Al, N and O in HTL-free perovskite, respectively.
Figure S5.(a) The J-V curve of the best-performing PEDOT:PSS HTL perovskite solar cell with the structure of glass/ITO/PEDOT:PSS/CH3NH3PbI3/PC61BM/Al. The curve was measured by Keithley 2400 under AM 1.5 G simulated irradiation. (b) The corresponding IPCE spectrum of the best performance PEDOT:PSS HTL perovskite
solar cell, the calculated J sc is 18.5 mA cm-2.
Figure S6. UPS spectra cut-off of perovskite on HTL-free and PEDOT:PSS HTL.
samples with a structure of ITO/CH3NH3PbI3/PC61BM/Al.
C u r r e n t
D e n s i t y (m A /c m 2
)
Voltage (V)
Figure S8. Forward (from J sc to V oc ) and reverse (from V oc to J sc ) scan current density-voltage curves for the inverted perovskite solar cells with the structure of glass/ITO/PEDOT:PSS/CH 3NH 3PbI 3/PC 61BM/Al. The curves were measured by Keithley 2400 under AM 1.5 G simulated irradiation.
glass/ITO/PEDOT:PSS/CH3NH3PbI3.
1
2
34567
8
9
HTL-free perovskite reference 2
reference 1
S p e n d i n g t i m e (h )
Figure S10. Histograms of summary fabricating time for of HTL-free perovskite solar cell, reference 11 and reference 22.
Table S1. The detail fabrication time used for the three kinds structure of perovskite.1,2
a The fabrication procedure time of the reference device was calculated by repeated the optimum condition experiment.
b The HTL-free perovskite solar cell is the structure we studied in this work.
1. Z. Xiao, C. Bi, Y. Shao, Q. Dong, Q. Wang, Y. Yuan, C. Wang, Y. Gao and J.
Huang, Energy Environ. Sci. 2014, 7, 2619-2623.
2. H.-S. Kim, C.-R. Lee, J.-H. Im, K.-B. Lee, T. Moehl, A. Marchioro, S.-J.
Moon, R. Humphry-Baker, J.-H. Yum, J. E. Moser, M. Gratzel and N.-G. Park, Sci. Rep.2012, 2, 591 (1-7).