Method and apparatus for sensing infrared radiation

摘要

Embodiments of the invention pertain to a method and apparatus for sensing infrared (IR) radiation. In a specific embodiment, a night vision device can be fabricated by depositing a few layers of organic thin films. Embodiments of the subject device can operate at voltages in the range of 10-15 Volts and have lower manufacturing costs compared to conventional night vision devices. Embodiments of the device can incorporate an organic phototransistor in series with an organic light emitting device. In a specific embodiment, all electrodes are transparent to infrared light. An IR sensing layer can be incorporated with an OLED to provide IR-to-visible color up-conversion. Improved dark current characteristics can be achieved by incorporating a poor hole transport layer material as part of the IR sensing layer.

主权项

1. A device for sensing infrared (IR) radiation, comprising:
an IR sensing layer, wherein the IR sensing layer has a current density of less than 1 mA/cm2; and an organic light emitting diode (OLED) on the IR sensing layer, wherein the OLED is arranged to receive electrons generated in the IR sensing layer.