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Cation-defect-induced self-reduction towards efficient mechanoluminescence in Mn2+-activated perovskites.
Xiao, Yao; Xiong, Puxian; Zhang, Shuai; Sun, Yongsheng; Yan, Na; Wang, Zhiduo; Chen, Qianyi; Shao, Peishan; Brik, Mikhail G; Ye, Shi; Chen, Dongdan; Yang, Zhongmin.
Afiliación
  • Xiao Y; School of Materials Science and Engineering, School of Physics and Optoelectronics, State Key Laboratory of Luminescent Materials and Devices, Institute of Optical Communication Materials, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices
  • Xiong P; School of Materials Science and Engineering, School of Physics and Optoelectronics, State Key Laboratory of Luminescent Materials and Devices, Institute of Optical Communication Materials, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices
  • Zhang S; School of Materials Science and Engineering, School of Physics and Optoelectronics, State Key Laboratory of Luminescent Materials and Devices, Institute of Optical Communication Materials, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices
  • Sun Y; Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University, 3508 TA Utrecht, The Netherlands.
  • Yan N; School of Materials Science and Engineering, School of Physics and Optoelectronics, State Key Laboratory of Luminescent Materials and Devices, Institute of Optical Communication Materials, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices
  • Wang Z; School of Materials Science and Engineering, School of Physics and Optoelectronics, State Key Laboratory of Luminescent Materials and Devices, Institute of Optical Communication Materials, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices
  • Chen Q; School of Materials Science and Engineering, School of Physics and Optoelectronics, State Key Laboratory of Luminescent Materials and Devices, Institute of Optical Communication Materials, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices
  • Shao P; School of Materials Science and Engineering, School of Physics and Optoelectronics, State Key Laboratory of Luminescent Materials and Devices, Institute of Optical Communication Materials, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices
  • Brik MG; School of Materials Science and Engineering, School of Physics and Optoelectronics, State Key Laboratory of Luminescent Materials and Devices, Institute of Optical Communication Materials, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices
  • Ye S; School of Optoelectronic Engineering & CQUPT-BUL Innovation Institute, Chongqing University of Posts and Telecommunications, Chongqing, China.
  • Chen D; Institute of Physics, University of Tartu, Tartu, Estonia.
  • Yang Z; Faculty of Science and Technology, Jan Dlugosz University, Czestochowa, Poland.
Mater Horiz ; 10(9): 3476-3487, 2023 Aug 29.
Article en En | MEDLINE | ID: mdl-37233737
Mechanoluminescent (ML) materials have shown promising prospects for various applications, e.g. in stress sensing, information anti-counterfeiting and bio stress imaging fields. However, the development of trap-controlled ML materials is still limited, because the trap formation mechanism is not always clear. Here, inspired by a defect-induced Mn4+ → Mn2+ self-reduction process in suitable host crystal structures, a cation vacancy model is creatively proposed to determine the potential trap-controlled ML mechanism. Combined with the theoretical prediction and experimental results, both the self-reduction process and ML mechanism are clarified in detail, where the contribution of and defects dominates the ML luminescent process. Electrons/holes are mainly captured by the anionic/cationic defects, followed by the combination of electrons and holes to transfer energy to the Mn2+ 3d states under mechanical stimuli. Based on the multi-mode luminescent features excited by X-ray, 980 nm laser and 254 nm UV lamp, together with the excellent persistent luminescence and ML, a potential application in advanced anti-counterfeiting is demonstrated. These results will deepen the understanding of the defect-controlled ML mechanism, and inspire more defect-engineering strategies to develop more high-performance ML phosphors for practical application.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Mater Horiz Año: 2023 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Mater Horiz Año: 2023 Tipo del documento: Article Pais de publicación: Reino Unido