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Highly Controllable and Efficient Synthesis of Mixed-Halide CsPbX3 (X = Cl, Br, I) Permiskite QDs toward the Tunability of Entire Visible Light
Su, Y.; X. J. Chen; W. Y. Ji; Q. H. Zeng; Z. Y. Ren; Z. S. Su and L. Liu
2017
发表期刊Acs Applied Materials & Interfaces
卷号9期号:38
摘要CsPbX3 (X = Cl, Br, I) perovskite quantum dots (PQDs) have been intensively investigated on photoelectric devices due to their superior optical properties. To date, the stability of CsPbX3 PQDs is still an open challenge. The previous mixed-halide CsPbX3 PQDs were generally obtained via the anion-exchange method at 40 degrees C. Here, the single- and mixed-halide CsPbX3 PQDs are synthesized at high temperature via the hot injection technique. The surface ligands could thus be strongly coordinated onto the surface of the PQDs, which dramatically improve the optical properties of the PQDs. The resulting CsPbX3 PQDs have high quantum yield (QY, 40-95%), narrow full width at half-maximum (FWHM) (the narrowest FWHM <10 nm), tunable band gap (408-694 nm), and highly strong photostability. The variation of their emission peaks upon anion atoms is well-supported by the theoretical band gaps calculated by the density functional theory calculations with the alloy formula correction. Hence, these PQDs show great potential as good candidates for photoelectric devices.
收录类别sci ; ei
语种英语
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/59198
专题中科院长春光机所知识产出
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Su, Y.,X. J. Chen,W. Y. Ji,et al. Highly Controllable and Efficient Synthesis of Mixed-Halide CsPbX3 (X = Cl, Br, I) Permiskite QDs toward the Tunability of Entire Visible Light[J]. Acs Applied Materials & Interfaces,2017,9(38).
APA Su, Y.,X. J. Chen,W. Y. Ji,Q. H. Zeng,Z. Y. Ren,&Z. S. Su and L. Liu.(2017).Highly Controllable and Efficient Synthesis of Mixed-Halide CsPbX3 (X = Cl, Br, I) Permiskite QDs toward the Tunability of Entire Visible Light.Acs Applied Materials & Interfaces,9(38).
MLA Su, Y.,et al."Highly Controllable and Efficient Synthesis of Mixed-Halide CsPbX3 (X = Cl, Br, I) Permiskite QDs toward the Tunability of Entire Visible Light".Acs Applied Materials & Interfaces 9.38(2017).
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