论文标题
自驱动的水或极化液体的紫外光电探测器
Self-driven water or polarized liquid based ultraviolet photodetector
论文作者
论文摘要
传统上，光电探测器基于建造的固体材料，它需要许多精致的生长技术。在此，我们证明了极化液体触发的光电探测器的可行性，其中将液体夹在P型或N型半导体之间，可以根据特定响应波长的要求自由选择。在光学开关的多个循环下，在半导体/极性液体/半导体结构中可以重复观察到瞬时光偏光电流，稳态光极化电流和去极化电流。 N-GAN/水/P-GAN中瞬时光极化电流的响应性和特异性检测到104.2 mA/w和4.4*10^12琼斯在365 nm处的琼斯，52.8 mA/w和1.9*10^12 Jones在零电压偏置下的254 nm照明处的琼斯。我们预计我们的研究将对将自动的光电探测器与可自由选择的波长频段整合在一起产生深远的影响。
Traditionally, photodetector is based on solid materials constructed PN junction, which needs many delicate growth technologies. Herein, we demonstrate the feasibility of polarized liquid triggered photodetector where the liquid is sandwiched between P-type or N-type semiconductor which can be chosen freely according to the requirement of the specific response wavelength. Under the multiple cycles of optical switching, transient photo-polarized current, steady state photo-polarized current and depolarized current are repeatably observed in semiconductor/polar liquids/semiconductor structure. The responsivity and specific detectivity of transient photo-polarized current in N-GaN/water/P-GaN reach values of 104.2 mA/W and 4.4*10^12 Jones at 365 nm, and 52.8 mA/W and 1.9*10^12 Jones at 254 nm illumination under zero voltage bias. We anticipate that our research will have a profound impact on integrating self-powered photodetector with freely selectable wavelength bands.
