Single walled carbon nanotube-based planar photodector

摘要

A single-walled carbon nanotube-based planar photodetector includes a substrate; a first electrode and a second electrode disposed on the substrate and spaced apart from each other; a plurality of single-walled carbon nanotubes, each of the plurality of single-walled carbon nanotubes contacting the first electrode and the second electrode; and an adsorbent attached to a surface of at least one of the plurality of single-walled carbon nanotubes, wherein the adsorbent is capable of doping the at least one of the plurality of single-walled carbon nanotubes by photo-excitation.

主权项

1. A single-walled carbon nanotube-based planar photodetector comprising:
a substrate; a self assembled monolayer (SAM) on the substrate in a form of a plurality of lines; a first electrode and a second electrode disposed on the substrate and spaced apart from each other; a plurality of single-walled carbon nanotubes, each of the plurality of single-walled carbon nanotubes contacting the first electrode and the second electrode, and the plurality of single-walled carbon nanotubes being aligned to closely contact a surface of the SAM; and an adsorbent attached to a surface of at least one of the plurality of single-walled carbon nanotubes, wherein when irradiated with light, the adsorbent adsorbs either electrons or holes and p-dopes or n-dopes the at least one of the plurality of single-walled carbon nanotubes, and when not irradiated with light, the at least one of the plurality of single-walled carbon nanotubes is not p-doped or n-doped.