钙钛矿量子点/MoS2范德华异质结的制备与光电性质研究

PREPARATION AND PHOTOELECTRIC PROPERTIES OF PEROVSKITE QUANTUM DOTS/MOS2 VAN DER WAALS HETEROJUNCTIONS

何英杰

11849295

硕士

材料工程

龚佑品

2020-05-28

2020-07-14

哈尔滨工业大学

深圳

以石墨烯为代表的二维（2D）材料具有独特的物理化学特性和其背后复杂的机理，自它们在2004年问世以来就一直是研究的热点。过渡金属硫族化合物（TMDCs）作为一种新兴的2D材料具有可随成分、结构和厚度调节的禁带宽度、高的光吸收率和高载流子迁移率，使得它们能够实现覆盖紫外-可见光范围并延伸到红外的光谱响应，这为开发新型的光电子器件应用提供了一个绝佳的机会，譬如能源转换、信息传递和成像。而且，TMDCs能够通过化学气相沉积（CVD）等多种方法制备，目前已经在光电转换、化工生产等众多领域使用。

Since their advent in 2004, two-dimensional (2D) materials represented by graphene are the signifcant focus of researchers owing to their unique physical and chemical properties accompanied by complex mechanisms. An emerging family of 2D materials—transition metal chalcogenides (TMDCs)—exhibit high light absorption, high carrier mobility, and, in particular, the tunable bandgaps that cover a broad spectral range from UV-visible to infrared region can be tuned by composition and dimensionality, which offers great opportunities to develop many optoelectronic device applications, such as energy conversion, information communications and imaging. Moreover, because TMDCs can be conveniently prepared by various methods such as chemical vapor deposition (CVD), they are currently applied in many areas, such as photoelectric conversion and chemical production.

二维材料 过渡金属硫族化合物 范德华异质结 钙钛矿量子点 光电探测器

two-dimensional materials TMDCs van der Waals heterojunctions perovskite quantumdots photodetectors

中文

联合培养

南方科技大学

何英杰. 钙钛矿量子点/MoS2范德华异质结的制备与光电性质研究[D]. 深圳. 哈尔滨工业大学,2020.