Journal of Inorganic Materials ›› 2017, Vol. 32 ›› Issue (8): 870-876.DOI: 10.15541/jim20160584
• Orginal Article • Previous Articles Next Articles
GUO Xiu-Bin1, YU Wei1, Li Jing1, JIANG Zhao-Yi2, MA Deng-Hao2, LIU Hai-Xu1
Received:
2016-10-24
Revised:
2016-12-27
Published:
2017-08-10
Online:
2017-07-19
About author:
GUO Xiu-Bin. E-mail: 1067654456@qq.com
Supported by:
CLC Number:
GUO Xiu-Bin, YU Wei, Li Jing, JIANG Zhao-Yi, MA Deng-Hao, LIU Hai-Xu. Improving Microstructure and Photoelectric Performance of the Perovskite Material via Mixed Solvents[J]. Journal of Inorganic Materials, 2017, 32(8): 870-876.
Fig. 1 Surface morphologies of perovskite films prepared by different solvents(a) Pure DMF solvent; (f) Pure DMSO solvent; (b) 15% DMSO; (c) 30% DMSO; (d) 60% DMSO; (e) 80% DMSO
Fig. 6 Fit of PL spectrum for perovskite film based on pure DMF solvent (a); the change trend of the ratio of ordered to disordered phases with the increase of DMSO (b)
Sample | τ1/ns | τ2/ns |
---|---|---|
DMF | 2.0 | 81 |
15% | 3.1 | 85 |
30% | 2.6 | 94 |
60% | 3.5 | 90 |
80% | 1.8 | 77 |
DMSO | 1.7 | 67 |
Table 1 Carrier lifetime extracted from TR-PL decay curves
Sample | τ1/ns | τ2/ns |
---|---|---|
DMF | 2.0 | 81 |
15% | 3.1 | 85 |
30% | 2.6 | 94 |
60% | 3.5 | 90 |
80% | 1.8 | 77 |
DMSO | 1.7 | 67 |
Devices | JSC/(mA·cm-2) | VOC/V | FF/% | PCE/% |
---|---|---|---|---|
DMF | 15.4 | 0.91 | 66.3 | 9.3 |
15% | 18.9 | 0.95 | 70.3 | 12.6 |
30% | 20.9 | 0.99 | 72.8 | 15.1 |
60% | 20.2 | 0.96 | 71.9 | 13.9 |
80% | 17.2 | 0.94 | 69.2 | 11.2 |
DMSO | 14.7 | 0.91 | 63.1 | 8.4 |
Table 2 Photovoltaic parameters of devices prepared by mixed solvents with different volume ratios
Devices | JSC/(mA·cm-2) | VOC/V | FF/% | PCE/% |
---|---|---|---|---|
DMF | 15.4 | 0.91 | 66.3 | 9.3 |
15% | 18.9 | 0.95 | 70.3 | 12.6 |
30% | 20.9 | 0.99 | 72.8 | 15.1 |
60% | 20.2 | 0.96 | 71.9 | 13.9 |
80% | 17.2 | 0.94 | 69.2 | 11.2 |
DMSO | 14.7 | 0.91 | 63.1 | 8.4 |
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