High performance electronics based on aligned arrays of single walled carbon nanotubes
Başlık çevirisi mevcut değil.
- Tez No: 401549
- Danışmanlar: PROF. JOHN A. ROGERS
- Tez Türü: Doktora
- Konular: Fizik ve Fizik Mühendisliği, Physics and Physics Engineering
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 2007
- Dil: İngilizce
- Üniversite: University of Illinois at Urbana-Champaign
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 173
Özet
Özet yok.
Özet (Çeviri)
This dissertation describes a new approach for generating large area homogenous parallel array of single walled carbon nanotubes. The approach uses guided growth, by chemical vapor deposition (CVD), of SWNTs on single crystal quartz substrates. The anisotropic interaction associated with lattice structure of the quartz between SWNT and quartz surface guides SWNT during the deposition process. We have optimized CVD conditions that can produce arrays of individual single walled carbon nanotubes in horizontal configurations with perfect linear shapes, to within experimental uncertainties, and with levels of alignment >99.9%. We took the method one step further by printing these SWNT arrays on unusual substrate such as plastic. Using the developed printing technique, we can fabricate multilayer superstructures of single-walled carbon nanotubes (SWNTs) on a wide range of substrates. In order to understand charge transport through SWNT networks, we studied the scaling behaviours SWNT transistors by systematically varying degrees of alignment and coverage in transistors with a range of channel lengths and orientations perpendicular and parallel to the direction of alignment. We have modelled our experimental results using a first principles stick-percolation based transport model which provides a simple framework to interpret the sometimes counter-intuitive transport parameters measured in these devices. We have used dense, perfectly aligned arrays of long, perfectly linear SWNTs as an effective thin film semiconductor suitable for integration into transistors and other classes of electronic devices. These types of devices show excellent electric performance with mobilities and scaled transconductances approaching ~2,000 cm2 V-1 s-1 and ~3,000 S m-1, respectively. MOS and CMOS logic gates and mechanically flexible transistors on plastic were also demonstrated. Finally we have studied the high frequency performance of transistors that use aligned SWNT arrays. For the first time we have observed power gain from SWNT transistors. This achievement allows us to build all of the key functions of analog electronics, including resonant antennas, fixed RF amplifiers, RF mixers and audio amplifiers. Combining these components we have built the first carbon nanotube radio. These results represent important first steps to practical implementation of SWNTs in high speed analog circuits.
Benzer Tezler
- DSP tabanlı bir sistem ile anahtarlamalı relüktans motorunun kontrolu
DSP based control of switched reluctance motor
İZEL ÇİPRUT
Yüksek Lisans
Türkçe
1994
Elektrik ve Elektronik Mühendisliğiİstanbul Teknik ÜniversitesiPROF.DR. R. NEJAT TUNCAY
- Yeniden yapılandırılabilir akıllı yüzey destekli masif çok-girişli çok-çıkışlı sistemlerin milimetre dalga bandında performans analizi
Performance analysis of intelligent reconfigurable surface assisted massive multi-input multi-output systems in millimeter wave band
BEYZA ÖNAL
Yüksek Lisans
Türkçe
2023
Elektrik ve Elektronik Mühendisliğiİstanbul Medeniyet ÜniversitesiElektrik-Elektronik Mühendisliği Ana Bilim Dalı
PROF. DR. NİHAT KABAOĞLU
- Design and simulation of carbon nanotube hybridized field effect transistor biopotential sensor
Karbon nanotüp hibridize edilmiş alan etkili transistörlü biyopotansiyel sensör tasarımı ve simulasyonu
MUSTAFA İSTANBULLU
Doktora
İngilizce
2020
Elektrik ve Elektronik MühendisliğiÇukurova ÜniversitesiElektrik-Elektronik Mühendisliği Ana Bilim Dalı
PROF. DR. MUTLU AVCI
- Fabrication of junctionless silicon nanowire transistors via mix and match patterning based on field emission scanning probe lithography
Alan-salımlı tarama probu litografisine dayalı karıştır ve eşleştir modelleme ile bağlantısız silisyum nanotel transistörlerin üretimi
MERT ÖZDEN
Yüksek Lisans
İngilizce
2022
Makine MühendisliğiKoç ÜniversitesiMakine Mühendisliği Ana Bilim Dalı
PROF. DR. BURHANETTİN ERDEM ALACA
- Derin obje sezicilerle tümleştirilmiş bayesçi filtreleme ile videoda obje izleme
Integration of bayesian filtering and deep object detection for video object tracking
FİLİZ GÜRKAN GÖLCÜK
Doktora
Türkçe
2021
Elektrik ve Elektronik Mühendisliğiİstanbul Teknik ÜniversitesiElektronik ve Haberleşme Mühendisliği Ana Bilim Dalı
PROF. DR. BİLGE GÜNSEL KALYONCU