State Key Laboratory for Environmental-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China.
Chem Commun (Camb). 2018 Dec 11;54(99):13949-13952. doi: 10.1039/c8cc06777e.
A direct band gap of 1.6 eV has been identified in wurtzite CoO thin films, which matches the required value to achieve a theoretically high conversion efficiency solar cell. Its p-type conduction has been determined and an intense sub-gap absorption between 0.7 and 1.1 eV has been observed.
纤锌矿结构 CoO 薄膜的直接带隙为 1.6eV，与实现理论上高效率太阳能电池所需的数值相匹配。其表现为 p 型导电，并且在 0.7 到 1.1eV 之间观察到强烈的亚带隙吸收。
