Network-enhanced photoresponse time of Ge nanowire photodetectors

• Main Authors: Yan, Chaoyi, Singh, Nandan, Cai, Hui, Gan, Chee Lip, Lee, Pooi See
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2012
• Subjects: DRNTU::Engineering::Materials
• Online Access: https://hdl.handle.net/10356/94528; http://hdl.handle.net/10220/8518
• Institution: Nanyang Technological University

We demonstrated that the photoresponse time of Ge nanowire (NW) photodetectors could be greatly improved by using percolated NW networks (instead of single NW) as the active detection channels. Although the reset time for single-NW devices was >70 s, a fast reset time <1 s was observed for NW-...