A skin-like 2-D pixelized full-color quantum dot photodetector
Full-color photodetectors that can convert light to electric signals without sophisticated color filters and interferometric optics have gained considerable attention for widespread applications. However, technical challenges have impeded scientists from combining multispectral semiconductors and improving photon-transfer efficiency to form high-performance optoelectronic devices in practice. In a recent report on Science Advances, Jaehyun Kim and a research team in materials science and engineering in the U.S. and Korea, described a low-temperature fabricated (150 degrees C), two-dimensionally (2-D) pixelated, full-color photodetector using monolithic integration of quantum dots coupled to amorphous indium-gallium-zinc-oxide semiconductors.