Atomic substitution effects of inorganic perovskites for optoelectronic properties modulations

Chen, Baian1,2; Sun, Mingzi1; Chen, Rui2; Huang, Bolong1

2022-03-01

10.1002/eom2.12201

ECOMAT   影响因子和分区

2567-3173

Inorganic perovskites exhibit impressive optoelectronic properties through experimental doping or composition modification. However, the underlying mechanism of the atomic substitution effect needs to be elucidated to guide future device optimizations. In this work, we have carried out systematic research on a series of inorganic perovskites regarding their electronic, optical, and vibrational properties. The band structures are strongly affected by the B-sites. Meanwhile, phonon dispersions have revealed that the peculiar energy band offset is determined by the varied orbital and bonding characteristics. In addition, optical properties are directly influenced by the bond lengths between B-sites and halogens, which are regulated by atomic substitutions. In addition, the infrared active spectrum and corresponding vibration modes indicate that the metal-halogen octahedrons were confirmed to be the main source of these vibration modes. This work reveals the atomic substation effects of inorganic perovskites, which offer significant guidance for the design of next-generation optoelectronic devices.

atomic substitution effect density functional theory inorganic perovskites optoelectronic properties phonon dispersion

SCI

英语

通讯

Projects of Strategic Importance of the Hong Kong Polytechnic University[1-ZE2V] ; NSFC/RGC Joint Research Scheme Project[N_PolyU502/21] ; National Key R&D Program of China[2021YFA1501101]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Physical ; Green & Sustainable Science & Technology ; Materials Science, Multidisciplinary

WOS:000769651800001

WILEY

Web of Science

1.Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Kowloon, Hong Kong, Peoples R China
2.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China

Chen, Baian,Sun, Mingzi,Chen, Rui,et al. Atomic substitution effects of inorganic perovskites for optoelectronic properties modulations[J]. ECOMAT,2022.

Chen, Baian,Sun, Mingzi,Chen, Rui,&Huang, Bolong.(2022).Atomic substitution effects of inorganic perovskites for optoelectronic properties modulations.ECOMAT.

Chen, Baian,et al."Atomic substitution effects of inorganic perovskites for optoelectronic properties modulations".ECOMAT (2022).