Single-electron transistor applications and Polymer-based photonic crystals
Date Issued
2007
Date
2007
Author(s)
Wu, Cen-Shawn
DOI
en-US
Abstract
Single-electron transistor (SET) and photonic crystal (PC) are potential candidates for the next generation of nano-electronic and optical devices. This thesis work is to investigate experimentally the potential applications of single-electron transistor and polymer based photonic crystal. This thesis is divided into two parts. The first part is devoted to the single-electron transistor applications and development of the fabrication technique toward high-temperature operation of SET. Combining advanced electron-beam lithography and nanophased-material synthesis techniques, we have successfully prepared and measured single electron transistors with memory cell. In addition, we have proposed and demonstrated an SET differential amplifier with good common mode noise rejection characteristics. In an attempt towards high-operating temperature SETs, we have made Al-based SETs with an island with nominal 20nm in diameter utilizing high-energy electron-beam lithography and two-angle shadow evaporation. Judging from the maximum Coulomb blockade voltage, a charging energy of 8.22 meV (~95 K) was achieved.
In the second part of this thesis, we propose a simple and novel method to fabricate polymer based suspended quasi-3D photonic slab and 3D PCs. The unprecedented fabrication method utilizes only a single-step electron-beam lithography process, and thus overcomes difficulties encountered by the existing 3D PC techniques. This is a significant leap forward to the realization of multifunctional PC integrated circuits.
Subjects
單電子電晶體
庫倫阻斷
電荷能
單電子記憶單元
單電子差分電壓放大器
聚合物光子晶體
電子束微影術
Single-electron transistor
Coulomb blockade
Charge energy
SET memory
SET differential voltage amplifier
Polymer photonic crystal
E-beam lithography
Type
thesis
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