THz characterization of GeSn monocrystalline thin films
THz characterization of GeSn monocrystalline thin films
复制标题
GeSn 单晶薄膜的太赫兹表征
DOI:
10.1109/irmmw-thz50927.2022.9895959
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Liu X
中科院分区:
文献类型:
--
作者:
Liu X
The employment of other group IV materials, such as alloys of germanium and tin, poses a solution for overcoming the efficiency limit of silicon that arises from its indirect bandgap. By using THz spectroscopy, the optoelectronic properties, such as conductivity, mobility, carrier lifetime, can be extracted non-invasively, since there is no electrical contact. In this work, we use optical pump-THz probe (OPTP) spectroscopy to examine the photoconductivity lifetime and mobility of GeSn alloy thin film samples with different Sn concentration. The results demonstrate photoconductivity lifetimes on nanosecond timescales and carrier mobilities in range of 40~210cm2/(Vs), highlighting the promise of these thin films in device applications.
DOI:
--
发表时间:
2020
期刊:
Scalable Uncertainty Management
影响因子:
--
作者:
A. Giunto;Nicolas Humblot;L. Burnier;A. Krammer;A. Schüler;A. Fontcuberta i Morral
通讯作者:
A. Fontcuberta i Morral
影响因子:
3.2
作者:
Tran, Huong;Du, Wei;Yu, Shui-Qing
通讯作者:
Yu, Shui-Qing