Lee, Sterba & Morse, P.C.
Wavelength-selective photo detector
A wavelength-selective photo detector device includes a transparent upper electrode including a capacitor, a first semiconductor layer disposed under the upper electrode, an optical absorption layer disposed under the first semiconductor layer for absorbing light to form pairs of electrons and holes, an amplification layer disposed under the optical absorption layer for generating secondary electrons, a second semiconductor layer disposed under the amplification layer, and a lower electrode disposed under the second semiconductor layer and including an inductance coupled in parallel with an external resistance. The photo detector improves the S/N ratio and filters only light having a particular wavelength band.
Samsung Electronics Co., Ltd.
H
H01L
inventional
Jun-young Eun-kyung Byoung-lyong
Kim Lee Choi