Array of nanoscale optical sensors for high-sensitivity, broad-band imaging

这项博士计划将利用诺丁汉大学定制的二维(2D)半导体外延生长和原位分析设备(EPI2SEM)来研究一类新兴的基于金属硫化物的2D半导体。其目的是开发制造方法，以研究和优化基于2D金属硫化物异质层的隧道结原型器件。为了满足这些新系统的技术需求，必须解决几个挑战，从原子级的精密制造和可扩展性，到集成到设备中以便在实际应用中开发。最终目标是开发具有高灵敏度的纳米级光学传感器阵列，并在电磁光谱的紫外线(UV)和太赫兹(THz)波段之间工作。

This PhD proposal will use Nottingham University's bespoke facility for the EPItaxial growth and in situ analysis of two dimensional (2D) SEMiconductors (EPI2SEM) to investigate an emerging class of 2D semiconductors based on metal chalcogenides. The aim is to develop fabrication methods to study and optimise prototype tunnel junction devices based on 2D metal chalcogenides heterolayers. For these new systems to meet technological needs, several challenges must beaddressed, from the atomic-scale precision manufacturing and scalability, to integration into devices for exploitation in real applications. The ultimate goal is to develop arrays of nanoscale optical sensors with high sensitivity and operating between the ultraviolet (UV) and the terahertz (THz) bands of the electromagnetic spectrum.