Sb3+ Dopant and Halogen Substitution Triggered Highly Efficient and Tunable Emission in Lead-Free Metal Halide Single Crystals : научное издание | Научно-инновационный портал СФУ

Sb3+ Dopant and Halogen Substitution Triggered Highly Efficient and Tunable Emission in Lead-Free Metal Halide Single Crystals : научное издание

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1021/acs.chemmater.0c01708

Аннотация: Rational doping and compositional control remain significant challenges in designing luminescent metal halides to achieve highly efficient and tunable emission. Here, the air-stable lead-free Cs2InCl5 center dot H2O crystal with a zero-dimensional structure was investigated as a pristine compound to design new luminescence materials. Sb3+-doping inCs(2)InCl(5)center dot H2O:Sb3+ enabled broadband yellow emission with a photoluminescence quantum yield up to 95.5%. The emission colors can be expanded into the orange-red region by halogen compositional substitution for Cs2InCl5 center dot H2O:Sb3+ (X = Cl/Br/I). The optical characterizations along with the theoretical calculations demonstrate that the characteristic singlet and triplet self-trapped exciton emissions of ns(2)-metal-halide centers account for the tunable luminescence. Moreover, the admirable stability against air and heat pave way for its further applications in white light-emitting diodes and high-resolution fluorescent signs in anticounterfeiting technology. Our achievement in the case of Sb3+-doped Cs2InCl5 center dot H2O represents a successful strategy for developing stable lead-free metal halides with highly efficient emission for versatile optical applications.

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Издание

Журнал: CHEMISTRY OF MATERIALS

Выпуск журнала: Vol. 32, Is. 12

Номера страниц: 5327-5334

ISSN журнала: 08974756

Место издания: WASHINGTON

Издатель: AMER CHEMICAL SOC

Авторы

  • Jing Yuyu (Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing Municipal Key Lab New Energy Mat & Techno, Beijing 100083, Peoples R China)
  • Liu Ying (Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing Municipal Key Lab New Energy Mat & Techno, Beijing 100083, Peoples R China)
  • Jiang Xingxing (Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China)
  • Molokeev Maxim S. (Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia; Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia)
  • Lin Zheshuai (Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China; Univ Chinese Acad Sci, Beijing 100049, Peoples R China)
  • Xia Zhiguo (Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing Municipal Key Lab New Energy Mat & Techno, Beijing 100083, Peoples R China; South China Univ Technol, Sch Mat Sci & Technol, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Peoples R China)

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