Semiconductor nanowires for thermoelectric applications

... 22 2.3 Semiconductor nanowire for thermoelectric applications .23 2.3.1 Fabrication Methods 24 iii 2.3.2 Development of silicon/silicon-germanium/germanium nanowire for thermoelectrics ... improving the and value ratio [2.21] 2.3 Semiconductor nanowire for thermoelectric applications The thermal properties of crystal are an important area for study, with the first work pio...

Ngày tải lên: 10/09/2015, 09:32

... GROWTH OF GERMANIUM NANOWIRES FOR THERMOELECTRIC APPLICATIONS YOUCEF BANOUNI (Eng Deg., INSTITUT NATIONAL DES TÉLÉCOMMUNICATIONS) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF ENGINEERING ... in the thermoelectric performance of a device Although silicon is known as a poor thermoelectric material, it was shown that silicon in the form of nanowires exhibits ther...

Ngày tải lên: 07/10/2015, 10:18

... !"#$%&'()'*+,'-.&/0%1'2%34 '53 /10" 36- '7' 168 '9:';

Ngày tải lên: 13/10/2015, 15:57

... 3/ (#CpD), $ = L2/(%2&) and & = k/(#Cp) Equation (3. 3) should be satisfied for the thermal conductivity calculated to be within +/ -3. 5% of the actual value < 2'$ < (3. 3) The parameters of the lock-in ... working frequency for the Ge nanowire sample was 1000 Hz, 0. 03 s of time constant was sufficient for stability 3. 11 Ceramic heater setup for temperature dependence c...

Ngày tải lên: 13/10/2015, 15:57

... roughness of the nanowires and act as a form of phonon-scattering elements at several length scales If precipitates are incorporated carefully, the k of Ge Thermal Conductivity of GeNw and SiNw 77 nanowires ... resistivity of the GeNw were measured and extracted accordingly as below Electrode to 2, to and to : 0. 349 ! m Electrode to and to : 0 .41 3 ! m Electrode to :...

Ngày tải lên: 13/10/2015, 15:57

... of germanium nanowires 11 " 2. 3 .1" Growth mechanism of germanium nanowires 11 " iv 2. 3 .2 Different nanowire synthesis techniques 18 " 2. 4 Fabrication of silicon nanowires by ... Introduction and Motivation 1" 1. 1" Background 1" 1. 2" Efficiency of a thermoelectric material 3" 1. 3" Opportunity in semiconductor nanowires 4" 1. 4" Organization of ....

Ngày tải lên: 13/10/2015, 15:57

... great value for the use of resonant tunneling devices in oscillator circuits [18] One of the holy grails of low -dimensional devices has been to try to realize resonant tunneling devices for lower ... has demonstrated the potential for growth of doped nanowires for electronics, photonics and biosensor applications [8–10] 561 Formation of heterostructures in nanowires Arou...

Ngày tải lên: 16/03/2014, 15:20

... can categorize the efforts as basic investigation of the SiNWs for its unique properties and integration of SiNWs with Micro-Electro-Mechanical-Systems (MEMS) for various applications In this ... the practical value of SiNWs and their integration with MEMS for applications In this chapter on literature review, the focus is the piezoresistive effect of SiNWs an...

Ngày tải lên: 09/09/2015, 10:08

... Founded 1905 ONE- DIMENSIONAL SEMICONDUCTOR NANOWIRES FOR FUTURE NANO- SCALED APPLICATION WHANG SUNG JIN A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY NATIONAL ... used for nanowire growth Recently, one- dimensional nanostructures using bottom-up approaches, such as carbon nanotubes [1] and semiconductor nanowires [2-5], have been the focus of attentions...

Ngày tải lên: 11/09/2015, 16:03

... Semiconductor Nanowires for Future Nanoscale Application: Synthesis, Characterization, and Nanoelectronic Devices YANG WEIFENG B Sci (Fudan University, P R China) 2005 A THESIS SUBMITTED FOR ... metal and an n-type semiconductor in the absence of surface states At the far left, the metal and semiconductor are not in contact and the system is not in thermal equi...

Ngày tải lên: 14/09/2015, 08:45

... role in the modelling of the heat transfer of BHEs in an aquifer for geothermal applications This paper presented a novel laboratory method determining the hydraulic permeability of sand layer using ... that, except for sand samples, the present method can also be applied for other porous materials with the grain diameter of 0.1-0.6 mm For porous...

Ngày tải lên: 05/09/2013, 17:03

... Slide 12 - 14 MPC – Small Applications MPC Replacement for PID with Feedforward ©2006 Fisher-Rosemount Systems, Inc Slide 12 - 15 MPC – Small Applications MPC Replacement for PID Overrride MPC ... Systems, Inc Slide 12 - MPC – Small Applications Step Response Model ©2006 Fisher-Rosemount Systems, Inc Slide 12 - 10 MPC – Small Applications Verification of identified mode...

Ngày tải lên: 01/10/2013, 13:49

... 869-595 Fax +44 (1344) 300-020 GPS Antenna Considerations for Automotive Applications GPS0 1 LNA PCB Design The LNAs used in M/A-COM’s active antennas are high performance GaAs MMICs in low cost ... GPS Antenna Considerations for Automotive Applications 5.00 Resonant Frequency Equally important in the fabrication of GPS antenna elements is the control of ... +44 (...

Ngày tải lên: 05/11/2013, 19:15