Numerical Simulation of Blinking Quantum dot Based on Temperature Dependence 3-Dimensional Levy Random Walk
| Authors | Anita Sharma , M.N. Bapat |
| Affiliations | Regional Institute of Education, Bhopal, Madhya Pradesh, India |
| Е-mail | annu5.sharma@gmail.com |
| Issue | Volume 3, Year 2011, Number 1, Part 5 |
| Dates | Received 04 February 2011, published online 08 December 2011 |
| Citation | Anita Sharma, M.N. Bapat, J. Nano- Electron. Phys. 3 No1, 888 (2011) |
| DOI | |
| PACS Number(s) | 72.25.Dc, 72.25.Fe, 72.25.Mk, 72.25.Rb |
| Keywords | Quantum dot (12) , Levy statistics, Random walk, Fluorescence. |
| Annotation |
Blinking statistics of quantum dot has attracted much attraction in recent years. Various experiments were conducted and various theories have been given to explain this phenomenon. However, the problem is not yet resolved. The weak temperature dependence of the power law parameters have complicated the phenomena. We have simulated the blinking statistics of quantum dot based on the random walk model. We have shown that three-dimensional biased Levy random walk of electrons, the bias being the Columbic interaction between electrons and ionized atoms can explain the observed experimental results. We have simulated the blinking properties of quantum dots in a broad temperature range (10-300 K). The distributions exhibit power law behavior for a wide range of temperature, but the power law parameter increases marginally with temperature. The trend of change is independent of the size of the quantum dots as confirmed from the simulation. |
|
List of References |
Other articles from this number
1) Effect of Change in Ba Concentration on Crystallintiy and Dielectric Constant of the Sol-Gel Deposited Barium Strontium Titante (BST) Films on n-Type Si Wafer [0851-0858]2) Room Temperature Ammonia Gas Sensing Characteristics of Co3O4 [0859-0867]
3) A Two-Dimensional (2D) Potential Distribution Model for the Short Gate-Length Ion-Implanted GaAs Mesfets Under Dark and Illuminated Conditions [0868-0877]
4) Germanium Nanocrystals Embedded in Silicon Dioxide for Floating Gate Memory Devices [0878-0883]
5) Thermodynamic Properties of ZnO With in Mie-Grüneisen Hypothesis [0884-0887]
6) A 2-D Analytical Threshold Voltage Model for Symmetric Double Gate MOSFET's Using Green’s Function [0894-0902]
7) Absorption and Luminescence of Hydrogen and Oxygen Passivated Silicon Quantum Dots [0903-0909]
8) Surface States and Photoluminescence From Porous Silicon [0910-0913]
9) Manufacturing Practices for Silicon-Based Power Diode in Fast Recovery Applications [0914-0920]
10) Thermal Annealing Behaviour on Electrical Properties of Pd/Ru Schottky Contacts on n-Type GaN [0921-0925]
11) Current Transport Behaviour of Au/n-GaAs Schottky Diodes Grown on Ge Substrate With Different Epitaxial Layer Thickness Over a Wide Temperature Range [0926-0936]
12) Role of Interface Charges on High-k Based Poly-Si and Metal Gate Nano-Scale MOSFETs [0937-0941]
13) Designing Single Chamber Hwcvd System for High Deposition Rate Device Quality A-Si:h Thin Films and Solar Cells [0942-0946]
14) High-k HfO2 Based Metal-Oxide-Semiconductor Devices Using Silicon and Silicon Carbide Semiconductor [0947-0955]
15) Antimony Doped Tin Oxide Thin Films: Co Gas Sensor [0956-0962]
16) A Doping Dependent Threshold Voltage Model of Uniformly Doped Short-Channel Symmetric Double-Gate (DG) MOSFET’s [0963-0971]
17) Gate Leakage Current Reduction With Advancement of Graded Barrier AlGaN/GaN HEMT [0972-0978]
18) Analytical Estimate of Open-Circuit Voltage of a Schottky-Barrier Solar Cell Under High Level Injection [0979-0991]
19) Variation of Quantum Well Infrared Photodetectors Parameter With an Applied Electric Field [0992-0994]
20) Barrier Inhomogeneities of Al/p-In2Te3 Thin Film Schottky Diodes [0995-1004]
21) Effect of Laser on the Bound Magnetic Polaron in a Semimagnetic Quantum Wire [1005-1009]
22) Propagation Characteristics of Surface Plasmon Waves on Au, Ag and Al at Optical Wavelengths [1010-1020]
23) Porous Silicon & Titanium Dioxide Coatings Prepared by Atmospheric Pressure Plasma Jet Chemical Vapour Deposition Technique-A Novel Coating Technology for Photovoltaic Modules [1021-1034]
24) Vacancy Defect Reconstruction and its Effect on Electron Transport in Si-C Nanotubes [1035-1040]
25) Simultaneous Effects of Hydrostatic Pressure and Geometry on Metal-Insulator Transition in a Cubical Quantum Dot [1041-1047]
26) Electrical Transport Characteristics of Pd/V/N-InP Schottky Diode From I-V-T and C-V-T Measurements [1048-1055]
27) Fabrication of Polyaniline/TiO~2 Nanocomposite Ammonia Vapor Sensor [1056-1063]
28) Structural, Optical, and Magnetic Properties of Zn1-xMnxs (x = 0.00, 0.01, and 0.03) Nanoparticles [1064-1070]
29) Modeling of Electron Mobility of GaN at Low Temperature and Low Electric Field [1071-1080]
30) Investigation of Implantation-Induced Damage in Indium Phosphide for Layer Transfer Applications [1081-1085]
31) Impact of Annealing on CuInSe~2 Thin Films and Its Schottky Interface [1086-1095]
32) Comparative Study of Polymer and Semiconductor for Fractional Quantum Hall Effect [1096-1101]
33) New Evolving Directions for Device Performance Optimization Based Integration of Compound Semiconductor Devices on Silicon [1102-1111]
34) Effect of Drift Region Doping and Coulmn Thickness Variations in a Super Junction Power MOSFET: a 2-D Simulation Study [1112-1119]
35) Effective Passivation of C-Si by Intrinsic A-Si:h Layer for hit Solar Cells [1120-1126]
36) Simulation and Optimization of n-Type PERL Silicon Solar Cell Structure [1127-1136]
