纯钛上无源薄膜和阳极薄膜产生的瞬态光电流的数值模拟

IF 4.7 3区工程技术 Q2 ELECTROCHEMISTRY

Electrochemistry Communications Pub Date : 2024-01-24 DOI:10.1016/j.elecom.2024.107666

Seong Cheol Kim, Hiroaki Tsuchiya, Shinji Fujimoto

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引用次数: 0

摘要

提出了一种光电流瞬态数值模拟方法，用于估算在纯钛上形成的无源膜和阳极膜的特性。为了模拟光电流瞬态，根据载流子的产生、重组和传输，建立了描述光激发电荷载流子浓度和位置随时间变化的偏微分方程。通过筛选几个参数进行了模拟。通过将模拟光电流瞬态与实验获得的瞬态进行拟合，估算出电子迁移率、供体密度、重组系数和界面反应速率系数。

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Numerical simulation of photocurrent transients generated from passive films and anodic films on pure Ti

A numerical simulation of photocurrent transient was proposed to estimate properties of passive films and anodic films formed on pure Ti. To simulate photocurrent transient, partial differential equations describing the change in the concentration and positions of photoexcited charge carriers with time were developed based on the generation, recombination, and transports of the carriers. Simulations were performed by screening several parameters. The electron mobility, donor density, recombination coefficient and interfacial reaction rate coefficient were estimated by fitting simulated photocurrent transients to experimentally obtained transients.

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来源期刊

Electrochemistry Communications 工程技术-电化学

CiteScore

8.50

自引率

3.70%

发文量

160

审稿时长

1.2 months

期刊介绍： Electrochemistry Communications is an open access journal providing fast dissemination of short communications, full communications and mini reviews covering the whole field of electrochemistry which merit urgent publication. Short communications are limited to a maximum of 20,000 characters (including spaces) while full communications and mini reviews are limited to 25,000 characters (including spaces). Supplementary information is permitted for full communications and mini reviews but not for short communications. We aim to be the fastest journal in electrochemistry for these types of papers.