| 초록 |
Infrared (IR) sensors have been widely applied in scientific and industrial applications such as health monitoring, optical communications, night visions, autonomous cars, etc. Conventional IR sensors have been fabricated with inorganic materials, which include hazardous elements and typically need high temperature processes. Although inorganic nanoparticles are suggested for the fabrication of devices, the rigid nature of inorganic materials is still a big hurdle for the flexible sensor applications. Recently, our group has demonstrated a couple of near infrared (NIR) sensors based on conjugated polymers by launching new concept of “gate-sensing layer (GSL)” in the geometry of transistors. In this presentation, we demonstrate that short-wavelength infrared (SWIR) can be detected by organic phototransistors (OPTRs) which consist of doped-polytriarylamine GSL. The details including wavelength limit and sensitivity will be discussed together with device fabrication processes. |
