Ultrahigh Photogain Nanoscale Hybrid Photodetectors

Small. 2015 Jun 24;11(24):2856-61. doi: 10.1002/smll.201403724. Epub 2015 Feb 19.

Abstract

A class of ultrasensitive nanoscale hybrid photodetectors formed from carbon electrode-molecule junctions using P3HT:PCBM as photoresponsive semiconductors are demonstrated. The unique device architecture, tunability of nanoscale channel lengths and the optimized contact nature of semiconductor/electrode interfaces led to ultrahigh photogains of 1000 with graphene nanoelectrodes and 1 000 000 with single-walled carbon nanotube nanoelectrodes.

Keywords: contact interfaces; molecular junctions; photodetectors; photogain.

Publication types

  • Research Support, Non-U.S. Gov't