Energy conversion efficiency in nanotube optoelectronics.
Journal Article
·
· Proposed for publication in Nano Letters.
OSTI ID:951726
We present theoretical performance estimates for nanotube optoelectronic devices under bias. Current-voltage characteristics of illuminated nanotube p-n junctions are calculated using a self-consistent nonequilibrium Green's function approach. Energy conversion rates reaching tens of percent are predicted for incident photon energies near the band gap energy. In addition, the energy conversion rate increases as the diameter of the nanotube is reduced, even though the quantum efficiency shows little dependence on nanotube radius. These results indicate that the quantum efficiency is not a limiting factor for use of nanotubes in optoelectronics.
- Research Organization:
- Sandia National Laboratories
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 951726
- Report Number(s):
- SAND2004-4973J
- Journal Information:
- Proposed for publication in Nano Letters., Journal Name: Proposed for publication in Nano Letters.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Enhanced Photocurrent Efficiency of a Carbon Nanotube Embedded in a Photonic Structure
Hydrogen and oxygen production by photosynthetic water splitting: Energy and quantum conversion efficiencies
Ultrahigh efficiencies in vertical epitaxial heterostructure architectures
Technical Report
·
Fri Aug 01 00:00:00 EDT 2008
·
OSTI ID:1324637
Hydrogen and oxygen production by photosynthetic water splitting: Energy and quantum conversion efficiencies
Conference
·
Mon Dec 31 23:00:00 EST 1984
·
OSTI ID:5199600
Ultrahigh efficiencies in vertical epitaxial heterostructure architectures
Journal Article
·
Sun Feb 14 23:00:00 EST 2016
· Applied Physics Letters
·
OSTI ID:22591750