Control of the Crystal Growth Shape in CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub> Perovskite Materials
No Thumbnail Available
Date
2017
Authors
Park, Jongee
Shin, Jong Wook
Jung, Jin-Hee
Park, Jongee
Ozturk, Abdullah
Kim, Soo Young
Journal Title
Journal ISSN
Volume Title
Publisher
Amer Scientific Publishers
Open Access Color
OpenAIRE Downloads
OpenAIRE Views
Abstract
CH3NH3PbBr3 (MAPbBr(3)) materials with perovskite structure were grown by a two-step process using Pb(CH3COO)(2). 3H(2)O and methyl amine bromide (MABr). By changing the concentration of MABr in isopropyl alcohol (IPA) solvent and the annealing temperature, the shape of CH3NH3PbBr3 materials can be controlled to afford nanocubes, nanowires, nanorods, and wrinkled structures. MAPbBr3 with single cubic structure was obtained at a MABr concentration of 3 mg/mL in IPA, and a nanorod array of MAPbBr3 was realized at a MABr concentration of 9 mg/mL in IPA at room temperature. Uniformly wrinkled shapes were formed after the synthesis temperature was increased to 60 and 90 degrees C. The X-ray diffraction patterns, Fourier transform infrared spectra, and X-ray photoelectron spectra of CH3NH3PbBr3 nanorods confirmed that the pure perovskite phase was obtained by dipping Pb(CH3COO)(2). 3H(2)O in MABr/IPA solution. The optical bandgap of the CH3NH3PbBr3 nanorods was estimated from the Tauc plot as 2.2 eV. The evolution of perovskite shapes is expected to lead to improvements in the electrical properties and surface contact, which are important factors for realizing high-performance devices.
Description
Park, Jongee/0000-0003-1415-6906; Ozturk, Abdullah/0000-0002-1525-1561; Ozturk, Abdullah/0000-0002-1525-1561; Kim, SOO YOUNG/0000-0002-0685-7991; Le, Quyet Van/0000-0002-4313-301X
Keywords
CH3NH3PbBr3, Perovskite, Crystal Shape, Structure
Turkish CoHE Thesis Center URL
Fields of Science
Citation
13
WoS Q
Scopus Q
Source
Volume
17
Issue
11
Start Page
8169
End Page
8174