Doping Mn(II) in All-Inorganic Ruddlesden-Popper Phase of Tetragonal Cs2PbCl2I2 Perovskite Nanoplatelets

被引：48

作者：

Dutta, Anirban ^{[1
]}

Behera, Rakesh Kumar ^{[1
]}

Deb, Sourav ^{[2
]}

Baitalik, Sujoy ^{[2
]}

Pradhan, Narayan ^{[1
]}

机构：

[1] Indian Assoc Cultivat Sci, Sch Mat Sci, Kolkata 700032, India

[2] Jadavpur Univ, Dept Chem, Inorgan Chem Sect, Kolkata 700032, India

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2019年 / 10卷 / 08期

关键词：

WHITE-LIGHT EMISSION; HALIDE PEROVSKITES; NANOCRYSTALS SUCCESSES; CSPBX3; X; BR; PHOTOLUMINESCENCE; MN2+; CI; TRANSFORMATION; CL;

D O I：

10.1021/acs.jpclett.9b00738

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Doping Mn(II) in inorganic Ruddlesden-Popper phase Cs2PbCl2I2 perovskite nanoplatelets is reported. The host nanostructures were prepared with a calculative protocol taking the exact required composition of Cs(I) and Pb(II) and injecting the preformed mixed oleylammonium chlorides and iodides at optimized reaction temperature. Reactions were optimized with various halides and their mixtures, but the stable phase of the Cs2PbX4 system was obtained only for the chloride-iodide mixed-halide system. Introduction of Mn(II) along with Pb(II), resulted in successful light-emitting doped nanocrystals. Measuring the photoluminescence and the decay lifetimes at room and liquid nitrogen temperatures, the variations in the excitonic, self-trapped, and Mn dopant emission properties were compared with those of the chalcogenide and perovskite nanocrystals.

引用

页码：1954 / 1959

页数：11

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