Direct evaluation of hole effective mass of SnS?SnSe solid solutions with ARPES measurement
Direct evaluation of hole effective mass of SnS?SnSe solid solutions with ARPES measurement
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ARPES测量直接评价SnS?SnSe固溶体的孔有效质量
DOI：
10.1039/d1cp04553a
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发表时间：
2022
影响因子：
3.3
通讯作者：
Tanaka Shin-Ichiro
中科院分区：
文献类型：
--
作者：
Suzuki Issei;Lin Zexin;Kawanishi Sakiko;Tanaka Kiyohisa;Nose Yoshitaro;Omata Takahisa;Tanaka Shin-Ichiro
通过角分辨光电子能谱（ARPES）观察到单晶SnS1−xSex固溶体的价带色散。孔的有效质量，决定热电性能的关键因素，直接评估。它们在低Se组成范围内随Se含量的增加而略有下降，但在高Se组成范围内急剧下降。
Valence band dispersions of single-crystalline SnS1−xSex solid solutions were observed by angle-resolved photoemission spectroscopy (ARPES). The hole effective masses, crucial factors in determining thermoelectric properties, were directly evaluated. They decrease slightly with increasing Se content in the low Se composition range but sharply in the high Se composition range.