Hao XIONG, Bo-Xin ZHANG, Wei JIA, Qing-Hong ZHANG, Hua-Qing XIE, [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Polymer PVP Additive for Improving Stability of Perovskite Solar Cells[J]. Journal of Inorganic Materials, 2019, 34(1): 96
- Journal of Inorganic Materials
- Vol. 34, Issue 1, 96 (2019)
. Surface SEM images of PbI2 films on the glass with or without polymer modification (a) Without PVP; (b) 0.2wt% PVP; (c) 0.4wt% PVP; (d) 0.6wt% PVP; (e) 0.8wt% PVP
. Surface SEM images of perovskite films with various concentration of PVP (a) Without PVP; (b) 0.2wt% PVP; (c) 0.4wt% PVP; (d) 0.6wt% PVP; (e) 0.8wt% PVP
. UV-visible absorption spectra of films in presence of varying concentration of PVP (a) PbI2 films; (b) CH3NH3PbI3 films
. Steady state photoluminescence (PL) spectra of perovskite films doped with various concentration of PVP on the glass
. XRD patterns of fresh perovskite films doped with PVP of various quantities; The optical photos from bottom to top in the inserted are 0, 0.2wt%, 0.4wt%, 0.6wt%, 0.8wt% PVP (PbI2 on the left, perovskite on the right)
. XRD patterns of CH3NH3PbI3 doped with PVP of various quantities after three weeks in the air; The optical photos from bottom to top in the inserted are 0, 0.2wt%, 0.4wt%, 0.6wt%, 0.8wt% PVP, respectively (PbI2 on the left, perovskite on the right)
. Photocurrent density-voltage (J-V ) curves of the PSCs doped with various concentration of PVP
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Table 1. The parameters of as-prepared perovskite solar cells doped with various concentration of PVP
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Table 2. The parameters of perovskite solar cells doped with various concentration of PVP after three days in the air
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Table 3. The parameters of perovskite solar cells doped with various concentration of PVP after three weeks in the air
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