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

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Solution-processed Visible-blind UV-A Photodetectors Based on CH3NH3PbCl3 Perovskite Thin Films./
作者:	Zheng, Erjin.
面頁冊數:	1 online resource (44 pages)
附註:	Source: Masters Abstracts International, Volume: 57-02.
Contained By:	Masters Abstracts International57-02(E).
標題:	Chemical engineering. -
電子資源:	click for full text (PQDT)
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. - 1 online resource (44 pages)

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

Thesis (Master's)

Includes bibliographical references

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.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355357424Subjects--Topical Terms:

555952
Chemical engineering.
Index Terms--Genre/Form:

554714
Electronic books.

Solution-processed Visible-blind UV-A Photodetectors Based on CH3NH3PbCl3 Perovskite Thin Films.
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500 $a Source: Masters Abstracts International, Volume: 57-02.
500 $a Adviser: Qiuming Yu.
502 $a Thesis (Master's) $c University of Washington $d 2017.
504 $a Includes bibliographical references
520 $a 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.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Chemical engineering. $3 555952
650 4 $a Nanoscience. $3 632473
650 4 $a Materials science. $3 557839
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