Fabrication and characterization of thin-film transistor materials and devices - NASA/ADS
Edwards, Martin John ; Thin film transistor circuits for active matrix liquid crystal displays. Doctoral thesis Ph. The demand for a high quality flat panel video display device for use in consumer and professional products has led to the rapid development of Active Matrix Liquid Crystal Displays AMLCD. The majority of these displays use Thin Film Transistors TFTs as the active devices and improvements in the performance of these transistors is creating the opportunity to integrate increasingly sophisticated circuits onto the glass substrates of the displays. This thesis describes a number of aspects of the use of thin film transistor circuits for active matrix liquid crystal displays. This is illustrated with measurements of transistors and simple circuits fabricated using two different low temperature poly-Si TFT technologies. At present the key application for TFT circuits is integration of the row and column drive circuits for active matrix liquid crystal displays.
PLASMA-ENHANCED ATOMIC LAYER DEPOSITION ZINC OIXDE FLEXIBLE THIN FILM ELECTRONICS
In order to achieve CMOS-type technology for organic based electronics, the development of ambipolar and n-channel organic semiconductors is critical. This thesis also presents the first ambipolar OTFT based on a film of a single, small molecule, and in correlation reveals the usefulness of solution electrochemistry as an indicator of solid-state conduction properties. In addition to these contributions to new materials development, this thesis addresses several specific OTFT device issues including contact resistance, threshold voltage instability, and transport mechanism.
Stott, JE ; Organic thin film transistors: integration challenges. This thesis considers some of the requirements and challenges in the eld of organic thin lm transistors OTFTs , from the standpoint of large scale integration using low temperature plastic compatible processes. A combination of processes and materials for use in the fabrication of OTFTs is developed, yielding device performance comparable with the state of the art for bottom-contact, bottom-gate, organic small molecule thin lm transistors.