· web viewzhicheng hu, sheng dong, qifan xue, rongguo xu, hin-lap yip,* fei huang* and yong cao...
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Supporting Information
In-situ Synthesis of Metal Nanoparticle-Polymer Composites and
Their Application as Efficient Interfacial Materials for Both Polymer
and Planar Heterojunction Perovskite Solar Cells
Zhicheng Hu, Sheng Dong, Qifan Xue, Rongguo Xu, Hin-Lap Yip,* Fei Huang* and Yong Cao
Fig. S1 Picture of Au doped PN4N solution (in methanol) (left) and Au NPs capped by sodium citrate solution (in
water) (right) after stored for 3 months. Obviously, the solution of Au NPs capped by sodium citrate started to
precipitated and the Au doped PN4N solution stayed clear.
(a)
(c)
Fig. S2 Three-dimensional AFM images of doped PN4N film(a), large TEM images (b)and size distribution of the
Au nanoparticles (10% and 20%) (c).
Fig. S3 AFM topography of the pristine undoped PN4N film, a moderately root mean square roughness (RMS) of
1.46 nm was obtained.
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Au@sodium Citrate
Fig. S4 UV-visible absorption spectra of Au NPs capped by citrate sodium. ( Au NPs capped by citrate sodium was
synthesized according to the reported literature,[46] and was directly mixed into PEDOT:PSS. It was estimated that
the diameter of synthesized Au NPs was ~40 nm from corresponding UV-visible absorption spectra)
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PN4N+PCDTBT:PCBM PN4N(Au)+PCDTBT:PCBM
Fig. S5 UV-visible absorption spectra of PCDTBT:PC71BM thin films deposited on PN4N films with or without Au
NPs
Fig. S6 The statistic distributions of the perovskite solar cell performance