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Patent Searching and Data


Title:
WRAPPING PEROVSKITE GRAINS WITH SILICA SHELLS FOR IMPROVING STABILITY AND EFFICIENCY OF PEROVSKITE ELECTRONIC DEVICES
Document Type and Number:
WIPO Patent Application WO/2019/036093
Kind Code:
A3
Abstract:
Systems and methods for enhancing the stability and efficiency of perovskite materials, and devices incorporating such perovskite materials. A method of making a perovskite layer includes mixing a perovskite solution with a silica shell precursor solution to produce a perovskite-silica precursor solution, and spin casting or drop casting the perovskite-silica precursor solution on a substrate to form a perovskite material or material layer, wherein the perovskite material or material layer includes a plurality of groups of one or more perovskite grains, each of said plurality of groups wrapped in a silica shell. The silica shell precursor solution may have a chemical structure of Rn-Si-(OR)4-n, where "R" is an alkyl, aryl, or organofunctional group, and "OR" is a methoxy, ethoxy, or acetoxy group.

Inventors:
HUANG JINSONG (US)
BAI YANG (US)
Application Number:
PCT/US2018/037619
Publication Date:
August 08, 2019
Filing Date:
June 14, 2018
Export Citation:
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Assignee:
NUTECH VENTURES INC (US)
International Classes:
H01L51/00
Foreign References:
US20150144196A12015-05-28
CN106634133A2017-05-10
US20160380125A12016-12-29
Other References:
HUANG, S. ET AL.: "Enhancing the Stability of CH 3NH3PbBr3 Quantum Dots by Embedding in Silica Spheres Derived from Tetramethyl Orthosilicate in ''Waterless'' Toluene", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 138, no. 18, 21 April 2016 (2016-04-21), pages 5749 - 5752, XP055628386
GAO, Y. ET AL.: "Preparation of Si02-Encapsulated BaTi03 Nanoparticles with Tunable Shell Thickness by Reverse Microemulsion", PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION, vol. 30, no. 10, 10 June 2013 (2013-06-10), pages 832 - 836, XP055628390
Attorney, Agent or Firm:
GRAY, Gerald T. (US)
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