Structural and thermoelectric properties of CH3NH3SnI3 perovskites processed by applying high pressure with shear strain

Autor:	Qing Wang, Yongpeng Tang, Zenji Horita, Satoshi Iikubo
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	Perovskite high-pressure torsion tube structure thermoelectric property DFT calculations Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materials Research Letters, Vol 10, Iss 8, Pp 521-529 (2022)
Druh dokumentu:	article
ISSN:	21663831 2166-3831
DOI:	10.1080/21663831.2022.2057821
Popis:	CH3NH3SnI3 perovskites, which can be created using printing technology, are environmentally friendly thermoelectric materials, but their applications are limited by unsatisfactory thermoelectric efficiency and structural stability. In this work, CH3NH3SnI3 perovskites are processed by applying high pressure with shear strain for the first time, resulting in better structural stability, enhanced electrical conductivity and the Seebeck coefficient with CH3NH3SnI3 tube structures after processing. First-principles calculations verified the reasonable changes in lattice constants, electronic band structures, electrical conductivity and the Seebeck coefficient. The present study demonstrates a potential strategy to improve the structural and thermoelectric properties of CH3NH3SnI3 and uncovers the possible mechanism.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/344df9518d8442b28864c5f28f2a14c0 Zobrazit plný text záznamu View record in DOAJ