High gain-adaptive readout of light-sensitive quantum dots photodetectors array

摘要：

　　We discuss the readout of a kind of novel 64-pixel quantum dots photodetector array which has high current gains but low dark currents and thus has high signal to noise ratio.Photocurrent spectrum tests demonstrated that the photodetector shows excellent light absorption from 600nm to 900nm both in room temperature (300K) and cooled down environment (77K by liquid nitrogen).High gain-adaptive capacitive trans-impedance amplifier (CTIA) readout circuit has been designed to acquire photocurrents.Different integration capacitors were designed to suit for both weak and strong light environments.In weak light detection, there were 2mV voltage response in 10-13W@300K and 4mV in [e-mail] responsivities were 2× 1010V/W and 4× 1011V/W respectively.

作者: Wang Wei Lu Haidong Guo Fangmin

作者单位: Shanghai Key Laboratory of Multidimensional Information Processing Laboratory of polar Materials & Devices East China Normal University, Shanghai, China

会议类型: 国内会议

会议名称: 2016年上海市研究生学术论坛——电子科学与技术

会议地点: 上海

会议语种:英文

页码: 98-101

在线出版日期: 2016-04-01（万方平台首次上网日期，不代表论文的发表时间）