Theses and Dissertations

Advisor

Gangishetty, Mahesh K.

Committee Member

Zhang, Dongmao

Committee Member

Creutz, Sid

Date of Degree

8-13-2024

Original embargo terms

Immediate Worldwide Access

Document Type

Graduate Thesis - Open Access

Major

Chemistry

Degree Name

Master of Science (M.S.)

College

College of Arts and Sciences

Department

Department of Chemistry

Abstract

Perovskites have raised interest due to their unique physical and optical properties in many fields. Adjustable bandgap, high photoluminescence quantum yield (PLQY), and a wide range of emitting colors make perovskite promising for light-emitting diodes (LEDs) devices. Up to now, too little attention has been given to understanding the growth mechanism of perovskite. Hence, establishing the growth kinetic model is a priority research focus. We explore that low temperatures could slow down the reaction rate of forming perovskite, which provides a chance for monitoring the growth kinetic of perovskite. Additionally, the low external quantum efficiency (EQE) of blue-emitting perovskites hinders their practical industrial production. Thus, another objective of this study is to investigate the effect of Mn2+/Nd3+ co-doping in blue-emitting perovskite. Finally, we achieve a blue-emitting perovskite CsPbMn1.3%Nd2.2%Br3 with a wavelength of 445 nm. This dissertation follows two case-study designs, analyzing characterization techniques (XRD, UV-visible absorption, PL, ICP) by origin and MATLAB software.

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