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Full-Text Articles in Engineering
Influence Of Oxygen On Electronic Properties Of Nanocrystalline Silicon, Shantan Kajjam
Influence Of Oxygen On Electronic Properties Of Nanocrystalline Silicon, Shantan Kajjam
Shantan Kajjam
Nanocrystalline Silicon (nc-Si) is an important material for photovoltaic device applications. Its excellent absorption, low defect levels and many other interesting properties help build high efficiency solar cells. Its structure is very complex and is sensitive to contaminants and fabrication processes. It needs a careful study so that a maximum outcome can be attained from the material. Nc-Si is highly prone to be defective and oxygen is one of the major sources of the defects. In this thesis, systematic analysis of the fundamental properties of oxygen doped & boron compensated nc-Si are illustrated. Thin film solar cells were fabricated using …
Observation Of Tunneling Effects In Lateral Nanowire Pn Junctions, Sri Purwiyanti, Arief Udhiarto, Daniel Moraru, Takeshi Mizuno, Djoko Hartanto, Michiharu Tabe
Observation Of Tunneling Effects In Lateral Nanowire Pn Junctions, Sri Purwiyanti, Arief Udhiarto, Daniel Moraru, Takeshi Mizuno, Djoko Hartanto, Michiharu Tabe
Makara Journal of Technology
As electronic device dimensions are continuously reduced, applied bias conditions significantly change and the transport mechanisms must be reconsidered. Tunneling devices are promising for scaled-down electronics because of expected high-speed operation and relatively low bias. In this work, we investigated the tunneling features in silicon-oninsulator lateral nanowire pn junction and pin junction devices. By controlling the substrate voltage, tunneling features can be observed in the electrical characteristics. We found that the minimum substrate voltage required for tunneling to occur in pn junctions is higher as compared with pin junctions. The main cause of these effects relies in the difference between …
Compositional Model Checking Of Concurrent Systems, Hao Zheng, Zhen Zhang, Chris J. Myers, Emmanuel Rodriguez, Yingying Zhang
Compositional Model Checking Of Concurrent Systems, Hao Zheng, Zhen Zhang, Chris J. Myers, Emmanuel Rodriguez, Yingying Zhang
Electrical and Computer Engineering Faculty Publications
This paper presents a compositional framework to address the state explosion problem in model checking of concurrent systems. This framework takes as input a system model described as a network of communicating components in a high-level description language, finds the local state transition models for each individual component where local properties can be verified, and then iteratively reduces and composes the component state transition models to form a reduced global model for the entire system where global safety properties can be verified. The state space reductions used in this framework result in a reduced model that contains the exact same …
A Novel On-Chip Three-Dimensional Micromachined Calorimeter With Fully Enclosed And Suspended Thin-Film Chamber For Thermal Characterization Of Liquid Samples, Benyamin Davaji, Hye Jeong Bak, Woo-Jin Chang, Chung-Hoon Lee
A Novel On-Chip Three-Dimensional Micromachined Calorimeter With Fully Enclosed And Suspended Thin-Film Chamber For Thermal Characterization Of Liquid Samples, Benyamin Davaji, Hye Jeong Bak, Woo-Jin Chang, Chung-Hoon Lee
Electrical and Computer Engineering Faculty Research and Publications
A microfabricated calorimeter (μ-calorimeter) with an enclosed reaction chamber is presented. The 3D micromachined reaction chamber is capable of analyzing liquid samples with volume of 200 nl. The thin film low-stress silicon nitride membrane is used to reduce thermal mass of the calorimeter and increase the sensitivity of system. The μ-calorimeter has been designed to perform DC and AC calorimetry, thermal wave analysis, and differential scanning calorimetry. The μ-calorimeter fabricated with an integrated heater and a temperature sensor on opposite sides of the reaction chamber allows to perform thermal diffusivity and specific heat measurements on liquid samples with same device. …