公开(公告)号：US20180222766A1

公开(公告)日：2018-08-09

申请号：US15506415

申请日：2015-08-20

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Iman ROQAN ,  Tahani Hassan FLEMBAN

IPC: C01G9/03 ,  H01G9/20 ,  H01L21/02 ,  C23C14/28 ,  C23C14/08

CPC classification number: C01G9/03 ,  B82Y30/00 ,  B82Y40/00 ,  C01G1/02 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/13 ,  C01P2004/16 ,  C01P2006/40 ,  C23C14/086 ,  C23C14/28 ,  H01G9/204 ,  H01L21/02381 ,  H01L21/0242 ,  H01L21/02554 ,  H01L21/02606 ,  H01L21/02631 ,  Y10S977/762 ,  Y10S977/811 ,  Y10S977/891

Abstract: Metal oxide nanostructure and methods of making metal oxide nanostructures are provided. The metal oxide nanostructures can be 1-dimensional nanostructures such as nanowires, nanofibers, or nanotubes. The metal oxide nanostructures can be doped or un-doped metal oxides. The metal oxide nanostructures can be deposited onto a variety of substrates. The deposition can be performed without high pressures and without the need for seed catalysts on the substrate. The deposition can be performed by laser ablation of a target including a metal oxide and, optionally, a dopant. In some embodiments zinc oxide nanostructures are deposited onto a substrate by pulsed laser deposition of a zinc oxide target using an excimer laser emitting UV radiation. The zinc oxide nanostructure can be doped with a rare earth metal such as gadolinium. The metal oxide nanostructures can be used in many devices including light-emitting diodes and solar cells.

公开(公告)号：US20210340021A1

公开(公告)日：2021-11-04

申请号：US17272960

申请日：2019-09-05

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Bin XIN ,  Iman ROQAN ,  Yuhai ZHANG ,  Somak MITRA ,  Yusin PAK

IPC: C01G21/00 ,  H01L31/0352 ,  H01L31/032 ,  H01L31/18

Abstract: A method for forming CsPbBr3 perovskite nanocrystals into a two-dimensional (2D) nanosheet includes providing CsPbBr3 perovskite nanocrystals; mixing the CsPbBr3 perovskite nanocrystals into a mixture of a first solvent and a second solvent, to form a solution of the CsPbBr3 perovskite nanocrystals, the first solvent, and the second solvent; and forming an optoelectronic device by patterning the CsPbBr3 perovskite nanocrystals into a nanosheet, between first and second electrodes. The first solvent is selected to evaporate before the second solvent.