Record Details

Exploring packaging strategies of nano-embedded thermoelectric generators

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Exploring packaging strategies of nano-embedded thermoelectric generators
 
Creator SINGHA, A
MAHANTI, SD
MURALIDHARAN, B
 
Subject SILICON NANOWIRES
MAXIMUM POWER
FIGURE
MERIT
PERFORMANCE
EFFICIENCY
PHYSICS
 
Description Embedding nanostructures within a bulk matrix is an important practical approach towards the electronic engineering of high performance thermoelectric systems. For power generation applications, it ideally combines the efficiency benefit offered by low dimensional systems along with the high power output advantage offered by bulk systems. In this work, we uncover a few crucial details about how to embed nanowires and nanoflakes in a bulk matrix so that an overall advantage over pure bulk may be achieved. First and foremost, we point out that a performance degradation with respect to bulk is inevitable as the nanostructure transitions to a multi moded one. It is then shown that a nano embedded system of suitable cross-section offers a power density advantage over a wide range of efficiencies at higher packing fractions, and this range gradually narrows down to the high efficiency regime, as the packing fraction is reduced. Finally, we introduce a metric -the advantage factor, to elucidate quantitatively, the enhancement in the power density offered via nano-embedding at a given efficiency. In the end, we explore the maximum effective width of nano-embedding which serves as a reference in designing generators in the efficiency range of interest. (C) 2015 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.
 
Publisher AMER INST PHYSICS
 
Date 2016-01-15T07:49:48Z
2016-01-15T07:49:48Z
2015
 
Type Article
 
Identifier AIP Advances, 5(10)
2158-3226
http://dx.doi.org/10.1063/1.4933125
http://dspace.library.iitb.ac.in/jspui/handle/100/18092
 
Language en