Results 31 to 40 of about 489,648 (377)

Chiral-perovskite optoelectronics [PDF]

open access: yesNature Reviews Materials, 2020
Hybrid organic–inorganic perovskites (HOIPs) offer long carrier-diffusion lengths, high absorption coefficients, tunable band gaps and long spin lifetimes. The flexible crystal structure and ionic nature of HOIPs make it possible to allow tuning of their material properties through rational design, including the incorporation of chiral organic ligands.
Guankui Long   +7 more
openaire   +3 more sources

Engineering ligand reactivity enables high-temperature operation of stable perovskite solar cells

open access: yesScience, 2023
Perovskite solar cells (PSCs) consisting of interfacial two- and three-dimensional heterostructures that incorporate ammonium ligand intercalation have enabled rapid progress toward the goal of uniting performance with stability.
So Min Park   +25 more
semanticscholar   +1 more source

Recent Advances in Oxygen Electrocatalysts Based on Perovskite Oxides

open access: yesNanomaterials, 2019
Electrochemical oxygen reduction and oxygen evolution are two key processes that limit the efficiency of important energy conversion devices such as metal−air battery and electrolysis.
Jun Xu   +5 more
doaj   +1 more source

Quasi-2D lead halide perovskite gain materials toward electrical pumping laser

open access: yesNanophotonics, 2021
Quasi two-dimensional (2D) lead halide perovskite materials have shown outstanding performance in various photoelectric devices, including perovskite light-emitting diodes (LEDs) and perovskite optical pumping lasers.
Zhao Chenyang, Qin Chuanjiang
doaj   +1 more source

Perovskite Nanowire Extrusion [PDF]

open access: yesNano Letters, 2017
The defect tolerance of halide perovskite materials has led to efficient optoelectronic devices based on thin-film geometries with unprecedented speed. Moreover, it has motivated research on perovskite nanowires because surface recombination continues to be a major obstacle in realizing efficient nanowire devices.
Sebastian Z. Oener   +7 more
openaire   +4 more sources

Two-Dimensional (PEA)2PbBr4 Perovskites Sensors for Highly Sensitive Ethanol Vapor Detection

open access: yesSensors, 2022
Two-dimensional (2D) perovskite have been widely researched for solar cells, light-emitting diodes, photodetectors because of their excellent environmental stability and optoelectronic properties in comparison to three-dimensional (3D) perovskite.
Ching-Ho Tien   +5 more
doaj   +1 more source

Controlled Synthesis of Organic/Inorganic van der Waals Solid for Tunable Light-matter Interactions

open access: yes, 2015
Van der Waals (vdW) solids, as a new type of artificial materials that consist of alternating layers bonded by weak interactions, have shed light on fascinating optoelectronic device concepts.
Chang, Tay Rong   +24 more
core   +1 more source

A novel dimethylformamide (DMF) free bar-cast method to deposit organolead perovskite thin films with improved stability [PDF]

open access: yes, 2016
We report a solvent-free approach to synthesizing organolead perovskites by using solid state reactions to coat perovskite crystals onto Al2O3 or TiO2 nanoparticles followed by addition of terpineol affording perovskite inks.
Arthur Connell   +36 more
core   +4 more sources

Electrospun Perovskite Nanofibers [PDF]

open access: yesNanoscale Research Letters, 2017
CH3NH3PbI3 perovskite nanofibers were synthesized by versatile electrospinning techniques. The synthetic CH3NH3PbI3 nanofibers were characterized by X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, and photoluminescence. As counter electrodes, the synthesized nanofibers increased the performance of the dye-sensitized solar ...
Chen, Dongsheng, Zhu, Yanyan
openaire   +2 more sources

Predicting the thermodynamic stability of perovskite oxides using machine learning models

open access: yes, 2018
Perovskite materials have become ubiquitous in many technologically relevant applications, ranging from catalysts in solid oxide fuel cells to light absorbing layers in solar photovoltaics.
Jacobs, Ryan, Li, Wei, Morgan, Dane
core   +1 more source

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