AMPS-1D Modeling of a-Si: H n^{+}-in^{+} Structure: the Validity of Space Charge Limited Current Analysis (original) (raw)
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Analysis of the structural parameters of an a-Si : H n+-i-n+ structure by numerical simulations
Journal of Materials Science Materials in Electronics
In this study, we discuss measurements of the J–V characteristics of an a-Si : H n+-i-n+ structure, and the results of numerical simulation using the AMPS-1D simulation program. Application of the AMPS simulation model to the sample structures considered allows us to determine the structural properties of the a-Si : H n+-i-n+ structure. The one-dimensional simulation program was examined in n+-i-n+ structures with different qualities and thicknesses of the i-layer. We find that the n+/i interface is more abrupt for a device with a high density of states (DOS), resulting in high values of the activation energy (E act). In contrast, thin samples of good quality (low DOS) give low values of E act. Analysis by numerical modeling confirms the experimental results.
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