Mixed-Dimensional Nanowires/Nanosheet Heterojunction of GaSb/Bi2O2Se for Self-Powered Near-Infrared Photodetection and Photocommunication (IMAGE)

Shanghai Jiao Tong University Journal Center

Mixed-Dimensional Nanowires/Nanosheet Heterojunction of GaSb/Bi2O2Se for Self-Powered Near-Infrared Photodetection and Photocommunication

Caption

  • The mixed-dimensional type II heterojunction of GaSb nanowires (NWs) and Bi2O2Se nanosheets (NSs) with a built-in electric field of ~ 140 meV is successfully constructed.
  • As-fabricated NW/NS and NW array/NS mixed-dimensional heterojunction photodetectors exhibit as-expected high-performance self-powered photodetection behaviors, including ultralow Idark (0.07 and 0.08 pA), superior Ilight/Idark ratios (82 and 182) and ultrafast photoresponse (< 2/2 and 6/4 ms).
  • As-fabricated NW array/NS mixed-dimensional heterojunction self-powered photodetector promises the future imaging and photocommunication.

Credit

Guangcan Wang, Zixu Sa, Zeqi Zang, Pengsheng Li, Mingxu Wang, Bowen Yang, Xiaoyue Wang, Yanxue Yin, Zai-xing Yang.

Usage Restrictions

Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted.

License

CC BY-NC-ND

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.