镓和铝小自由基的光电子能谱。

IF 2.8 2区化学 Q3 CHEMISTRY, PHYSICAL

The Journal of Physical Chemistry A Pub Date : 2025-06-25 DOI:10.1021/acs.jpca.5c02601

Emil Karaev, Dorothee Schaffner, Marius Gerlach, Patrick Hemberger and Ingo Fischer*,

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引用次数: 0

摘要

我们报道了AlCH3（7.89±0.04 eV）、GaCH3（7.90±0.02 eV）和GaOH（9.68±0.02 eV）的振动分辨阈值光电子能谱和电离能。在金属-有机气相外延合成GaN和GaAlN薄膜的过程中，所有分子都起着至关重要的作用。为了生成这些活性物质，我们对三甲基铝和三甲基镓进行了热解，并利用Paul Scherrer研究所VUV光束线上的双成像光电子-光子重合光谱装置，用阈值光电子能谱对其热解产物进行了表征。在frank - condon模拟中，振动是根据计算出的几何形状分配的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Photoelectron Spectra of Small Gallium and Aluminum Radicals

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Photoelectron Spectra of Small Gallium and Aluminum Radicals

We report vibrationally resolved threshold photoelectron spectra and ionization energies of the AlCH₃ (7.89 ± 0.04 eV), GaCH₃ (7.90 ± 0.02 eV), and GaOH (9.68 ± 0.02 eV). All molecules play a crucial role in the metal–organic vapor phase epitaxy synthesis of GaN and GaAlN thin films. To generate these reactive species, trimethylaluminum and trimethylgallium were pyrolyzed and their pyrolysis products were characterized by threshold photoelectron spectroscopy, utilizing the double imaging photoelectron photoion coincidence spectroscopy setup at the VUV beamline at the Paul Scherrer Institute. Vibrations were assigned in Franck–Condon simulations based on their computed geometries.

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来源期刊

The Journal of Physical Chemistry A 化学-物理：原子、分子和化学物理

CiteScore

5.20

自引率

10.30%

发文量

922

审稿时长

1.3 months

期刊介绍： The Journal of Physical Chemistry A is devoted to reporting new and original experimental and theoretical basic research of interest to physical chemists, biophysical chemists, and chemical physicists.