You are here

Tuning the Photoluminescence of Halide Perovskites

Title: Tuning the Photoluminescence of Halide Perovskites.

Inaccessible until May 8, 2020 due to copyright restrictions.

Name(s): Knox, Javon M., author
Gao, Hanwei, professor directing thesis
Bonesteel, N. E., committee member
Van Winkle, David, committee member
Florida State University, degree granting institution
College of Arts and Sciences, degree granting college
Department of Physics, degree granting department
Type of Resource: text
Genre: Text
Master Thesis
Issuance: monographic
Date Issued: 2017
Publisher: Florida State University
Place of Publication: Tallahassee, Florida
Physical Form: computer
online resource
Extent: 1 online resource (39 pages)
Language(s): English
Abstract/Description: Wavelength tunability or bandgap tuning of mixed halide perovskite, CsPb(IxBry)3 (y=1-x), can be achieved by changing the composition of iodide and bromide ions but under continuous illumination the photoluminescence (PL) peak position shifts from its initial position. This optical instability is attributed to phase segregation, where until photoexcitation the mixed halide anions migrate to iodide-rich and bromide-rich domains. Recent work has shown PL peak stability for mixed halide composition x > 0.6, however this limits the range of tunability to wavelengths greater than 640 nanometers (nm). Here we create a dual-source vapor-evaporation method to create mixed halide which can suppress the phase segregation and improve the photoluminescence stability.
Identifier: FSU_SUMMER2017_Knox_fsu_0071N_14120 (IID)
Submitted Note: A Thesis submitted to the Department of Physics in partial fulfillment of the requirements for the degree of Master of Science.
Degree Awarded: Summer Semester 2017.
Date of Defense: July 21, 2017.
Keywords: Color Tunabiliity, Mixed Halide, Perovskite, Photoluminescence
Bibliography Note: Includes bibliographical references.
Advisory Committee: Hanwei Gao, Professor Directing Thesis; Nicholas Bonesteel, Committee Member; David Van Winkle, Committee Member.
Subject(s): Physics
Persistent Link to This Record:
Owner Institution: FSU

Choose the citation style.
Knox, J. M. (2017). Tuning the Photoluminescence of Halide Perovskites. Retrieved from