Disorder parameters of gas-molecule decorated monolayer ${\text{MoSe}}_2$ are quantitatively investigated. This material system is interesting because disorder may be introduced and removed at will by regulating the number of adsorbed gas molecules through laser annealing. These molecules electrostatically trap excitons leading to localized defect states, which are exponentially distributed in energy. Herein, experiments are described by kinetic Monte-Carlo simulations, in summary enabling richer studies than within crystalline materials with a fixed degree of disorder. It is found that the surface coverage of the MoSe₂ may reach up to one molecule per 2 nm² and that the density of adsorbed molecules depends on the laser power by a power law.

中文翻译：

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激子跳跃的动力学蒙特卡罗模拟：气体分子装饰的 MoSe2 中的 Urbach 尾

气体分子修饰单层的无序参数 ${\text{钼}}_2$进行了定量调查。这种材料系统很有趣，因为可以通过激光退火调节吸附气体分子的数量来随意引入和去除无序。这些分子静电捕获激子，导致局部缺陷态，其能量呈指数分布。在此，实验通过动力学蒙特卡罗模拟进行描述，总而言之，与具有固定无序度的晶体材料相比，可以进行更丰富的研究。发现MoSe ₂的表面覆盖率可以达到每2 nm ²一个分子，并且吸附分子的密度根据幂律取决于激光功率。