國立虎尾科技大學 |

Development of High Performance Organic-Inorganic Halide Perovskite Optoelectronic Devices via Morphological and Interfacial Manipulation.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Development of High Performance Organic-Inorganic Halide Perovskite Optoelectronic Devices via Morphological and Interfacial Manipulation./
Author:	Zhao, Ting.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	117 p.
Notes:	Source: Dissertations Abstracts International, Volume: 80-10, Section: B.
Contained By:	Dissertations Abstracts International80-10B.
Subject:	Engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13809479
ISBN:	9781392070581

Development of High Performance Organic-Inorganic Halide Perovskite Optoelectronic Devices via Morphological and Interfacial Manipulation.
Zhao, Ting.

Development of High Performance Organic-Inorganic Halide Perovskite Optoelectronic Devices via Morphological and Interfacial Manipulation. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 117 p.

Source: Dissertations Abstracts International, Volume: 80-10, Section: B.

Thesis (Ph.D.)--University of Washington, 2019.

This item must not be added to any third party search indexes.

Organic-inorganic halide perovskites (OIHPs) have emerged as excellent solution processable semiconductors for a new generation of potentially printable and efficient optoelectronic devices in recent years, including photodetection, energy harvesting, and light-emitting devices. The rise to prominence for this class of materials is fueled by their superior properties, such as tunable bandgap, high carrier mobility, outstanding optoelectronic merits, and low-cost solution processability. Given all exciting properties, solution-processed perovskite thin film also shows very challenging characteristics including difficult morphology control and substantial defects at film surface and grain boundaries (GBs). In this dissertation, integrated morphological and interfacial approaches have been utilized to overcome the above-mentioned challenges and further enhance performance of OIHP optoelectronic devices. Chapter 1 briefly overviews basics of perovskite material, current status of various perovskite optoelectronic devices, and remaining challenges for obtaining high quality solution processed perovskite thin film. Chapter 2 introduces common experimental details involved in this work including material preparation, material property characterization, device fabrication and performance test. Chapter 3 demonstrates a fast (< 1s) and simple post deposition chemical treatment during which crystal reconstruction induced by a methylamine (MA0) vapor greatly improves perovskite film coverage, crystallinity, and perovskite solar cell (PSC) performance. In Chapter 4, another method to improve perovskite film morphology is proposed. An ion exchange method for conversion from two-dimensional (2D) to three-dimensional (3D) perovskite is developed to grow highly oriented methylammonium lead bromide (MAPbBr3) thin films with much-improved substrate coverage. The enhanced film quality leads to ultra-narrow electroluminescence spectra (15.3 nm full width half maximum (FWHM) and 98.10% color purity) and demonstrates immense potential of the ion exchange method for achieving ultrahigh resolution displays. Chapter 5 presents a simple defect passivation method by post-treating CH3NH3PbI3 (MAPbI3 ) film with diammonium iodide NH3I(CH2)8 NH3I (C8). Bilateral ammonium iodide end of C8 can simultaneously passivate perovskite layer and dope adjacent electron-transporting layer in derived PSCs. Consequently, the thin-film PSC passivated by C8 show reduced recombination loss and a much-improved power conversion efficiency (PCE) of 17.2% compared to 14.7% of the control device.

ISBN: 9781392070581Subjects--Topical Terms:

561152
Engineering.
Subjects--Index Terms:

Light-emitting diodes

Development of High Performance Organic-Inorganic Halide Perovskite Optoelectronic Devices via Morphological and Interfacial Manipulation.
LDR:03986nam a2200409 4500 001 951816
005 20200821052201.5
008 200914s2019 ||||||||||||||||| ||eng d
020 $a 9781392070581
035 $a (MiAaPQ)AAI13809479
035 $a (MiAaPQ)washington:19698
035 $a AAI13809479
040 $a MiAaPQ $c MiAaPQ
100 1 $a Zhao, Ting. $3 1241300
245 1 0 $a Development of High Performance Organic-Inorganic Halide Perovskite Optoelectronic Devices via Morphological and Interfacial Manipulation.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2019
300 $a 117 p.
500 $a Source: Dissertations Abstracts International, Volume: 80-10, Section: B.
500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisor: Jen, Alex K.-Y.
502 $a Thesis (Ph.D.)--University of Washington, 2019.
506 $a This item must not be added to any third party search indexes.
506 $a This item must not be sold to any third party vendors.
520 $a Organic-inorganic halide perovskites (OIHPs) have emerged as excellent solution processable semiconductors for a new generation of potentially printable and efficient optoelectronic devices in recent years, including photodetection, energy harvesting, and light-emitting devices. The rise to prominence for this class of materials is fueled by their superior properties, such as tunable bandgap, high carrier mobility, outstanding optoelectronic merits, and low-cost solution processability. Given all exciting properties, solution-processed perovskite thin film also shows very challenging characteristics including difficult morphology control and substantial defects at film surface and grain boundaries (GBs). In this dissertation, integrated morphological and interfacial approaches have been utilized to overcome the above-mentioned challenges and further enhance performance of OIHP optoelectronic devices. Chapter 1 briefly overviews basics of perovskite material, current status of various perovskite optoelectronic devices, and remaining challenges for obtaining high quality solution processed perovskite thin film. Chapter 2 introduces common experimental details involved in this work including material preparation, material property characterization, device fabrication and performance test. Chapter 3 demonstrates a fast (< 1s) and simple post deposition chemical treatment during which crystal reconstruction induced by a methylamine (MA0) vapor greatly improves perovskite film coverage, crystallinity, and perovskite solar cell (PSC) performance. In Chapter 4, another method to improve perovskite film morphology is proposed. An ion exchange method for conversion from two-dimensional (2D) to three-dimensional (3D) perovskite is developed to grow highly oriented methylammonium lead bromide (MAPbBr3) thin films with much-improved substrate coverage. The enhanced film quality leads to ultra-narrow electroluminescence spectra (15.3 nm full width half maximum (FWHM) and 98.10% color purity) and demonstrates immense potential of the ion exchange method for achieving ultrahigh resolution displays. Chapter 5 presents a simple defect passivation method by post-treating CH3NH3PbI3 (MAPbI3 ) film with diammonium iodide NH3I(CH2)8 NH3I (C8). Bilateral ammonium iodide end of C8 can simultaneously passivate perovskite layer and dope adjacent electron-transporting layer in derived PSCs. Consequently, the thin-film PSC passivated by C8 show reduced recombination loss and a much-improved power conversion efficiency (PCE) of 17.2% compared to 14.7% of the control device.
590 $a School code: 0250.
650 4 $a Engineering. $3 561152
650 4 $a Materials science. $3 557839
653 $a Light-emitting diodes
653 $a Morphology
653 $a Optoelectronics
653 $a Perovskite
653 $a Photovoltaics
653 $a Processing
690 $a 0537
690 $a 0794
710 2 $a University of Washington. $b Materials Science and Engineering. $3 1182422
773 0 $t Dissertations Abstracts International $g 80-10B.
790 $a 0250
791 $a Ph.D.
792 $a 2019
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13809479