中科院上海技术物理所黄志明研究组发现并提出一种太赫兹波段室温新光电导现象:当外部电磁波(光子)入射到器件上,将在半导体材料中诱导势阱,从而束缚来自于金属中的载流子,使得材料中载流子浓度发生改变。黄志明团队成功制备出相关器件,并通过实验证明了所提出理论的正确性。此项研究结果证明了远小于禁带能量的光子激发的室温光电导机制,并跳出了传统的基于带 Huang Zhiming’s research group at the Shanghai Institute of Technical Physics found and presented a terahertz-band photoconductivity at room temperature: When external electromagnetic waves (photons) are incident on the device, the potential well is induced in the semiconductor material, thereby binding the current flow from the metal Child, making the material in the carrier concentration changes. Huang Zhiming team successfully prepared the relevant devices, and proved by experiments the correctness of the theory. The results of this study demonstrate the photothermically induced room-temperature photoconductivity much less than the band gap energy and jump out of the traditional band-