@inproceedings{4e3c5bae24ac490ca73f181ac54b6898,
title = "400 element ErAs:InGaAs/InGaAlAs superlattice power generator",
abstract = "We report the fabrication and characterization of thin film power generators composed 400 p- and n-type ErAs:InGaAs/InGaAlAs superlattice thermoelectric elements. The thermoelectric elements incorporate erbium arsenide metallic nanoparticles into the semiconductor superlattice structure to provide charge carriers and create scattering centers for phonons. 10 μm p- and n-type InGaAs/InGaAlAs superlattices with embedded ErAs nano-particles were grown on InP substrates using molecular beam epitaxy. Thermal conductivity values were measured using the 3ω method and cross-plane Seebeck coefficients were determined using Seebeck device test patterns. 400 element ErAs:InGaAs/InGaAlAs thin film power generators were fabricated from superlattice elements 10 μm thick and 200 μm × 200 μm in area. The output power was 4.7 milliwatts for an external electrical load resistor of 150 Ω at about 80 K temperature difference drop across the generator. We discuss the limitations to the generator's performance and provide suggestions for further improvement.",
author = "Gehong Zeng and Bahk, {Je Hyeong} and Bowers, {John E.} and Zide, {Joshua M.O.} and Gossard, {Arthur C.} and Yan Zhang and Rajeev Singh and Zhixi Bian and Ali Shakouri and Woochul Kim and Suzanne Singer and Arun Majumdar",
year = "2006",
language = "English",
isbn = "1558998403",
series = "Materials Research Society Symposium Proceedings",
pages = "499--506",
booktitle = "Materials Research Society Symposium Proceedings",
note = "2005 Materials Research Society Fall Meeting ; Conference date: 28-11-2005 Through 01-12-2005",
}