Photocurrent generation from individual carbon nanotubes Ethan Minot, Department of Physics, Oregon State University
1 μm
5 μm
Scanning Electron Microscope
Optical Microscope
700 e-
h+
Electric field
Normalized Photocurrent (pA/μW)
• Photoabsorption peaks in individual CNTs have been detected • We are now studying the efficiency of the photocurrent generation process as a function of electric field and dielectric environment
Photocurrent
Excitation wavelength (nm) 600 500