J. Mater. Sci. Technol. ›› 2020, Vol. 43: 84-91.DOI: 10.1016/j.jmst.2019.10.016
• Research Article • Previous Articles Next Articles
Zhaojun Moa*(), Qiujie Lua, Zhihong Haob, Zhexuan Zhenga, Fu Qiua, Xiao Yanga, Zhenyu Lia, Lan Lia
Received:
2019-07-09
Revised:
2019-09-13
Accepted:
2019-10-06
Published:
2020-04-15
Online:
2020-04-26
Contact:
Mo Zhaojun
Zhaojun Mo, Qiujie Lu, Zhihong Hao, Zhexuan Zheng, Fu Qiu, Xiao Yang, Zhenyu Li, Lan Li. Effects of 1,9-dibromnonane on the structural, photophysical properties and stability of cesium lead bromide perovskite nanocrystals[J]. J. Mater. Sci. Technol., 2020, 43: 84-91.
Fig. 1. XRD patterns of the CsPbBr3 nanocrystals synthesized without 1,9-DN under different ratios of OA and OAM: (a) OA:OAM = 1:4; (b) OA:OAM = 1:2; (c) OA:OAM = 1:1; (d) OA:OAM = 4:1.
Fig. 2. XRD patterns of the CsPbBr3 nanocrystals synthesized with 1,9-DN under different ratios of OA and OAM: (a) OA:OAM = 1:4; (b) OA:OAM = 1:2; (c) OA:OAM = 1:1; (d) OA:OAM = 4:1.
Fig. 3. UV-vis absorption spectrum of the CsPbBr3 nanocrystals under different ratios of OA and OAM: (a, e) OA:OAM = 1:4; (b, f) OA:OAM = 1:2; (c, g) OA:OAM = 1:1; (d, h) OA:OAM = 4:1.
Fig. 4. PL spectrums of the CsPbBr3 nanocrystals synthesized without and with 1,9-DN under different ratios of OA and OAM: (a, e) OA:OAM = 1:4; (b, f) OA:OAM = 1:2; (c, g) OA:OAM = 1:1; (d, h) OA:OAM = 4:1.
Fig. 6. PL intensity of CsPbBr3 NCs were exposed UV light (365 nm), immersed in water and synergistic effect for 2 h: (a1-a3): 11S1; (b1-b3): 11S1-DN.
Fig. 7. PL intensity of CsPbBr3 NCs immersed in water, exposed UV light (365 nm) and synergistic effect for 2 h: (a1-a3) 14S1-DN; (b1-b3) 14S2-DN; (c1-c3) 14S3-DN; (d1-d3) 14S4-DN.
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