Low-Dimensional Organometal Halide Perovskites
نویسندگان
چکیده
منابع مشابه
Photoferroelectric and Photopiezoelectric Properties of Organometal Halide Perovskites.
Piezoelectrics play a critical role in various applications. The permanent dipole associated with the molecular cations in organometal halide perovskites (OMHPs) may lead to spontaneous polarization and thus piezoelectricity. Here we explore the piezoelectric properties of OMHPs with density functional theory. We find that the piezoelectric coefficient depends sensitively on the molecular order...
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Organometal halide perovskites are attracting great attention as promising material for solar cells because of their high power conversion efficiency. The high performance has been attributed to the existence of free charge carriers and their large diffusion lengths, but the nature of carrier transport at the atomistic level remains elusive. Here, nonadiabatic quantum molecular dynamics simulat...
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A facile hydrothermal method was developed to prepare CH3NH3PbBr3 and CH3NH3PbI3. The as-prepared products were utilized in lithium batteries as anode materials with good performance. Considering the structural diversity, more hybrid perovskites can be targets for further optimization, indicating their promising potential in Li-ion battery applications.
متن کاملFerroelectric Domain Wall Induced Band Gap Reduction and Charge Separation in Organometal Halide Perovskites.
Organometal halide perovskites have been intensely studied in the past 5 years, inspired by their certified high photovoltaic power conversion efficiency. Some of these materials are room-temperature ferroelectrics. The presence of switchable ferroelectric domains in methylammonium lead triiodide, CH3NH3PbI3, has recently been observed via piezoresponse force microscopy. Here, we focus on the s...
متن کاملThe Electrical and Optical Properties of Organometal Halide Perovskites Relevant to Optoelectronic Performance.
Organometal halide perovskites are under intense study for use in optoelectronics. Methylammonium and formamidinium lead iodide show impressive performance as photovoltaic materials; a premise that has spurred investigations into light-emitting devices and photodetectors. Herein, the optical and electrical material properties of organometal halide perovskites are reviewed. An overview is given ...
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ژورنال
عنوان ژورنال: ACS Energy Letters
سال: 2017
ISSN: 2380-8195,2380-8195
DOI: 10.1021/acsenergylett.7b00926