Semiconductor nanowires for future nanoscale application synthesis, characterization and nanoelectronic devices

... 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

... 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

... !"#$%&'()'*+,'-.&/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

... single step process using thermal evaporation of silicon monoxide under argon atmosphere with traces of oxygen The nanowires were free from metal contaminations and showed blue photoluminescence at ... its simplicity and the low cost Conclusions Amorphous silicon dioxide nanowires of several hundred microns in length and tens of nanometers in diameter have been...

Ngày tải lên: 16/03/2014, 15:18

... 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

... lower hydrolysis rates were the two triphosphate analogues with b,c-substitutions GppCH2p and GppNHp The Ras-catalysed hydrolysis rate of GTPcNH2 finally lay midway between the rates for GTPcS and ... c-Fluoroadenosine triphosphate Synthesis, properties, and interaction with myosin and heavy meromyosin Biochemistry 11, 2863–2871 34 Pfeuffer, T & Eckstein, F (1976) Topology...

Ngày tải lên: 18/03/2014, 01:20

... the rate of Cu release (see Discussion) In vitro toxicity of CuCNPs in HeLa cells The in vitro toxicity of CuCNPs in HeLa cells (a cervical adenocarcinoma) was investigated via an assay based ... platinum: synthesis, characterization, and in vitro toxicity of Cu(II)-releasing polymer nanoparticles for potential use as a drug delivery...

Ngày tải lên: 21/06/2014, 02:20

... WELL- DEFINED SILICA- POLYMER CORE- SHELL HYBRIDS AND POLYMER HOLLOW STRUCTURES: SYNTHESIS, CHRACTERIZATION AND APPLICATIONS LI GUOLIANG M Sci., Polymer Chemistry and Physics Nankai ... SUMMARY Well- defined inorganic /polymer core- shell hybrids and polymer hollow micro-/nanostructures are of great interest because of their diverse applications in che...

Ngày tải lên: 10/09/2015, 08:40

... 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

... scholarship and for providing the opportunity and facilities to carry out the research work Lastly, thanks to my parents and all my friends for their love and support ii Title: New materials for organic ... Zhang Sheng, Xu Changhua, Fan Dongmei and Wen Tao for their valuable help and advice in the synthesis and characterization of organic materials Special th...

Ngày tải lên: 14/09/2015, 08:39

... 84 Figure 5.3 Triarylamine based porphyrins P1 and P2………………………… 88 Scheme 5.3 Synthesis routes to P1 and P2…………………………… ………… 89 Figure 5.4 Normalized absorption and emission of P1 and P2 in THF…… ... Figure 6.3 Absorption and Emission of T3L1, B3L1, T2L1 and B2L1………… 122 Figure 6.4 Absorption and emission of TFL1 and BFL1 ……………………… 123 Figure 6.5 Absorption and emission o...

Ngày tải lên: 14/09/2015, 14:09

... 180oC for days and then cooled naturally to room temperature Among these nanostructured metal oxides, transition metal oxide nanostructure offers a wider spectrum of potential applications, including ... bottom of the conduction band; EF the Fermi level; XS the work function and XSO the electron affinity Figure 4-2: Energy band diagram of metal and semiconductor contact...

Ngày tải lên: 16/10/2015, 15:37