Electron-Phonon Interaction in Perovskite Nanocrystals in Fluorophosphate Glass Matrix
IF 0.6
4区 物理与天体物理
Q4 PHYSICS, CONDENSED MATTER
引用次数: 0
Abstract
The photoluminescence (PL) spectra of CsPbBr3 perovskite nanocrystals grown in a fluorophosphate glass matrix exhibit phonon replicas of the exciton line. The dependence of intensity of the phonon replica on its number is simulated taking into account the difference in the curvature of the excited and ground adiabatic potentials. The Raman spectra of CsPbBr3 nanocrystals are measured. Calculations based on the density functional theory is performed to obtain the spectrum of phonon states of these crystals in the orthorhombic phase. The phonon frequencies observed in the PL and Raman spectra are compared with the calculation results.
氟磷酸盐玻璃基质中包光体纳米晶体的电子-虹离子相互作用
摘要 在氟磷酸盐玻璃基质中生长的 CsPbBr3 包晶石纳米晶体的光致发光（PL）光谱显示出激子线的声子复制品。考虑到激发势和接地绝热势的曲率差异，模拟了声子复制品的强度与其数量的关系。测量了 CsPbBr3 纳米晶体的拉曼光谱。通过基于密度泛函理论的计算，获得了这些晶体在正交相中的声子态光谱。将在聚光和拉曼光谱中观察到的声子频率与计算结果进行了比较。
本文章由计算机程序翻译，如有差异，请以英文原文为准。
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来源期刊
Semiconductors
物理-物理：凝聚态物理
CiteScore
1.50
自引率
28.60%
发文量
131
审稿时长
3-6 weeks
期刊介绍：
Publishes the most important work in semiconductor research in the countries of the former Soviet Union. Covers semiconductor theory, transport phenomena in semiconductors, optics, magnetooptics, and electrooptics of semiconductors, semiconductor lasers and semiconductor surface physics. The journal features an extensive book review section.
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