公开(公告)号：US20110309236A1

公开(公告)日：2011-12-22

申请号：US13217103

申请日：2011-08-24

申请人： Hui Tian ,  Edward Sargemt

发明人： Hui Tian ,  Edward Sargemt

IPC分类号： H01L27/146 ,  H01L31/14

CPC分类号： H01L27/14625 ,  H01L27/14603 ,  H01L27/14623 ,  H01L27/14632 ,  H01L27/14638 ,  H01L27/14687 ,  H01L31/0224 ,  H01L31/022475 ,  H01L31/0324 ,  H01L31/035218 ,  H01L31/072 ,  H01L31/09 ,  H01L31/1013 ,  H01L31/1085 ,  Y02E10/50

摘要： A photodetector is described along with corresponding materials, systems, and methods. The photodetector comprises an integrated circuit and at least two optically sensitive layers. A first optically sensitive layer is over at least a portion of the integrated circuit, and a second optically sensitive layer is over the first optically sensitive layer. Each optically sensitive layer is interposed between two electrodes. The two electrodes include a respective first electrode and a respective second electrode. The integrated circuit selectively applies a bias to the electrodes and reads signals from the optically sensitive layers. The signal is related to the number of photons received by the respective optically sensitive layer.