A light-stimulated synaptic transistor with synaptic plasticity and memory functions based on InGaZnOx-Al2O3 thin film structure

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Band gaps and exciton binding energies of undoped and Al-doped ZnO thin films were determined from optical absorption measurement based on the Elliott's exciton absorption theory. As compared to the undoped films, the doped films exhibit a band gap expansion and a reduction in the exciton binding energies due to the free electron screening effect, which suppresses the excitonic absorption and results in a blue shift of the absorption edge. The undoped and doped films show the same quantum size dependence, i.e. both the exciton binding energies and band gap energies increase with decreasing grain size of the oxides.

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This paper proposes a new spatial-temporal MRF model for the detection of missing data (also referred to as blotches) in image sequences. The blotches in noise-corrupted image sequences exhibit temporal discontinuity characteristic which is commonly used for the detection of blotches. However, the badly motion compensated pixels will also appear as temporal discontinuities, thus making it difficult to distinguish the rrue blotches from the poorly motion compensated regions. The proposed MRF model addresses the problem of incorrect detection. It is found that the degree of false-alarm in the detection of the blotches in image sequences can be reduced by using a moving-edge detector in the MRF model to identify the blotch-edges from the movingedges.