Polymer PVP Additive for Improving Stability of Perovskite Solar Cells

Hao XIONG; Bo-Xin ZHANG; Wei JIA; Qing-Hong ZHANG; Hua-Qing XIE; [in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]

doi:10.15541/jim20180172

Journals >Journal of Inorganic Materials >Volume 34 >Issue 1 >Page 96 > Article

Journal of Inorganic Materials
Vol. 34, Issue 1, 96 (2019)

Polymer PVP Additive for Improving Stability of Perovskite Solar Cells

Hao XIONG¹, Bo-Xin ZHANG¹, Wei JIA², Qing-Hong ZHANG¹, Hua-Qing XIE³, [in Chinese]¹, [in Chinese]¹, [in Chinese]², [in Chinese]¹, and [in Chinese]³

Author Affiliations

¹1. College of Materials Science and Engineering, Donghua University, Shanghai 201620, China

²2. State Key Laboratory of Space Power Technology, Shanghai Institute of Power-Sources, Shanghai 200245, China

³3. College of Environmental and Materials Engineering, Shanghai Polytechnic University, Shanghai 201209, China

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DOI: 10.15541/jim20180172 Cite this Article

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 Copy Citation Text

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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 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

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. 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

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. UV-visible absorption spectra of films in presence of varying concentration of PVP (a) PbI₂ films; (b) CH₃NH₃PbI₃ films

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. Steady state photoluminescence (PL) spectra of perovskite films doped with various concentration of PVP on the glass

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. 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)

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. 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)

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. Photocurrent density-voltage (J-V) curves of the PSCs doped with various concentration of PVP

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Sample	V_oc/V	J_sc/(mA·cm^-2)	FF/%	PCE/%
Without PVP	0.95	16.17	39.40	6.09
0.2wt% PVP	1.00	19.14	46.10	8.86
0.4wt% PVP	1.04	19.60	64.00	13.07
0.6wt% PVP	1.05	17.39	67.77	12.34
0.8wt% PVP	1.04	14.83	67.38	10.42

Table 1. The parameters of as-prepared perovskite solar cells doped with various concentration of PVP

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Sample	V_oc/V	J_sc/(mA·cm^-2)	FF/%	PCE/%
Without PVP	1.09	12.05	31.64	4.17
0.2wt% PVP	0.78	16.75	48.36	6.33
0.4wt% PVP	1.04	21.05	53.05	11.60
0.6wt% PVP	0.99	21.44	47.12	10.02
0.8wt% PVP	0.84	17.20	66.10	9.52

Table 2. The parameters of perovskite solar cells doped with various concentration of PVP after three days in the air

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Sample	V_oc/V	J_sc/(mA·cm^-2)	FF/%	PCE/%
Without PVP	0.95	6.18	26.35	1.55
0.2wt% PVP	1.03	15.53	29.75	4.75
0.4wt% PVP	0.80	15.12	54.84	6.63
0.6wt% PVP	0.82	10.88	68.36	6.11
0.8wt% PVP	0.97	21.13	34.29	7.04

Table 3. The parameters of perovskite solar cells doped with various concentration of PVP after three weeks in the air

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