DocumentCode :
2183290
Title :
Effect of quantum effects on electrical transport in Si/Ge/Si sandwich structure
Author :
Han, Leilei ; Wang, Chunqing
Author_Institution :
Harbin Inst. of Technol., Harbin, China
fYear :
2011
fDate :
8-11 Aug. 2011
Firstpage :
1
Lastpage :
2
Abstract :
Thermoelectric microcoding is expected to solve the high heat flux caused by rapidly increasing packaging density of IC chips, for advantages as long lifetime, no moving parts and compatibility with IC fabrication, and etc. However the coefficient of performance of thermoelectric devices is still limited by the low figure of merit. In this paper, we simulated Si/Ge/Si sandwich simplified model, a kind of low dimensional structures which could be used to enhance the figure of merit proposed by Hicks and Dresselhaus firstly, with planar and non-planar interfaces to investigate the characteristic of carriers´ transport, by using modified two-dimensional simulator Archimedes (GNU package) based on Mento Carlo method. The results show that for structure of nano scale, quantum effects, especially quantum tunneling, will greatly affect the Seebeck coefficient, resulting in lower thermoelectric figure of merit, even though electrical conductivity increases.
Keywords :
Ge-Si alloys; Monte Carlo methods; Seebeck effect; cooling; electrical conductivity; integrated circuit packaging; sandwich structures; semiconductor materials; tunnelling; IC chip packaging density; IC fabrication; Mento Carlo method; Seebeck coefficient; Si-Ge-Si; electrical conductivity; electrical transport; heat flux; low dimensional structures; modified two-dimensional simulator Archimedes; nanoscale structure; nonplanar interfaces; quantum effects; quantum tunneling; sandwich structure; thermoelectric devices; thermoelectric figure of merit; thermoelectric microcoding; Conductivity; Integrated circuits; Packaging; Sandwich structures; Silicon; Superlattices; Thermoelectric devices;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electronic Packaging Technology and High Density Packaging (ICEPT-HDP), 2011 12th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4577-1770-3
Electronic_ISBN :
978-1-4577-1768-0
Type :
conf
DOI :
10.1109/ICEPT.2011.6066829
Filename :
6066829
Link To Document :
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