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Solution-processed Visible-blind UV-...

University of Washington.

Solution-processed Visible-blind UV-A Photodetectors Based on CH3NH3PbCl3 Perovskite Thin Films.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Solution-processed Visible-blind UV-A Photodetectors Based on CH3NH3PbCl3 Perovskite Thin Films.
Author:	Zheng, Erjin.
Published:	Ann Arbor : ProQuest Dissertations & Theses, 2017
Description:	44 p.
Notes:	Source: Masters Abstracts International, Volume: 57-02.
Notes:	Adviser: Qiuming Yu.
Contained By:	Masters Abstracts International57-02(E).
Subject:	Chemical engineering.
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10615033
ISBN:	9780355357424

Solution-processed Visible-blind UV-A Photodetectors Based on CH3NH3PbCl3 Perovskite Thin Films.
Zheng, Erjin.

Solution-processed Visible-blind UV-A Photodetectors Based on CH3NH3PbCl3 Perovskite Thin Films. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 44 p.

Source: Masters Abstracts International, Volume: 57-02.

Thesis (Master's)--University of Washington, 2017.

In this work, methylammonium lead trichloride (CH3NH3PbCl3) perovskite thin films were fabricated via a two-step spin coating and solvent-vapor-assisted thermal annealing method under low temperature. The films exhibited cubic crystalline structure and pinhole-free morphologies. The possible charge traps were investigated via the analysis of photoluminescence (PL) spectra of perovskite films prepared with different lead chloride (PbCl2) precursor concentrations while maintaining the same concentration of methylammonium chloride (CH3NH3Cl). Prototypical ultraviolet (UV) photodetectors with the structure of ITO/CH3NH3PbCl3/Poly (triaryl amine) (PTAA)/Al were fabricated and showed low dark current density 1.60 x 10-5 mA/cm2 under -1 V reverse bias, strong photoresponse in 300-400 nm region, and a high UV-visible rejection ratio up to 500 under 0 or -0.5 V bias. All the results demonstrated that low-temperature solution-processed CH3NH3PbCl3 perovskite thin films offer a great potential for making flexible, lightweight visible-blind UV-A photodetectors.

ISBN: 9780355357424Subjects--Topical Terms:

206267
Chemical engineering.

Solution-processed Visible-blind UV-A Photodetectors Based on CH3NH3PbCl3 Perovskite Thin Films.
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