Extending the operational wavelength of thermophotovoltaic devices via superlattice and barrier engineering

Abigail S. Licht; Dante F. DeMeo; J. B. Rodriguez; Thomas E. Vandervelde

doi:10.1117/12.2040307

7 March 2014 Extending the operational wavelength of thermophotovoltaic devices via superlattice and barrier engineering

Abigail S. Licht, Dante F. DeMeo, J. B. Rodriguez, Thomas E. Vandervelde

Author Affiliations +

Proceedings Volume 8981, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices III; 89811I (2014) https://doi.org/10.1117/12.2040307
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

In this paper, we investigate extending the operational wavelength of thermophotovoltaic diodes. Our calculations demonstrate that employing a barrier structure can reduce the diffusion current by several orders of magnitude, reducing dark current and improving the overall function of the TPV diode for room temperature operation. We first investigated GaSb/InAs type–II superlattice structures with monovalent barriers targeting wavelength cut-offs of five microns. Simulations were used to optimize the band structure energy levels for superlattice materials and to align the energy bands between different layers in the device. We examine the difference in IV curves between barrier and non-barrier structures for a five micron (E_g=0.248 eV) diode with a barrier of 300 meV.

Citation Download Citation

Abigail S. Licht, Abigail S. Licht, Dante F. DeMeo, Dante F. DeMeo, J. B. Rodriguez, J. B. Rodriguez, Thomas E. Vandervelde, Thomas E. Vandervelde, "Extending the operational wavelength of thermophotovoltaic devices via superlattice and barrier engineering", Proc. SPIE 8981, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices III, 89811I (7 March 2014); doi: 10.1117/12.2040307; https://doi.org/10.1117/12.2040307

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $14.40

Non-members: $18.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years