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Water-Stable Hybrid Lead-Free Perovskite for Negative Temperature Coefficient Thermistors.
Li, Ming-Kun; Lu, Yi-Han; Wang, Ting; Li, Peng-Xun; Zhang, Ning-Ning; Fan, Qing-Shun; Shang, Fan; Liu, Guang-Ning; Li, Cuncheng.
Afiliação
  • Li MK; School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
  • Lu YH; School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
  • Wang T; School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
  • Li PX; School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
  • Zhang NN; College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, P. R. China.
  • Fan QS; School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
  • Shang F; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
  • Liu GN; School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
  • Li C; School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
Inorg Chem ; 62(19): 7324-7332, 2023 May 15.
Article em En | MEDLINE | ID: mdl-37130306
Negative temperature coefficient (NTC) thermistors feature higher sensitivities and faster response speeds and thereby have particular applications in many fields. However, current NTC thermistors are mostly based on inorganic ceramic materials, which show obvious drawbacks in material synthesis, property modulation, and flexible film fabrication. Herein, we report, for the first time, the promising application of an inorganic-organic hybrid NTC thermistor. A new lead-free hybrid iodo bismuthate [1,1',1″-(benzene-1,3,5-triyl)tris(3-methyl-1H-imidazol-3-ium)]Bi2I9 [denoted as (Me3TMP)Bi2I9] was synthesized by a "double-free" strategy. (Me3TMP)Bi2I9 features a lead-free binuclear bismuth iodine anion charge compensated by a "classic hydrogen-bond-free" cation. (Me3TMP)Bi2I9 exhibits remarkable stability in water and UV light irradiation and shows the largest temperature sensitivity coefficient among all reported NTC materials. Theoretical calculation and detailed structural analysis disclose that the seriously distorted (BiI6) octahedra are responsible for the intriguing NTC effect for (Me3TMP)Bi2I9.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Inorg Chem Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Inorg Chem Ano de publicação: 2023 Tipo de documento: Article