N-type amorphous semiconductor materials
First Claim
1. An n-type chalcogenide amorphous material as measured by the Seebeck coefficient, said n-type material being that obtained by subjecting a normally p-type amorphous chalcogenide composition to a temperature below its crystallization temperature and which is located at a point on its room temperature versus annealing temperature curve which is sufficiently in excess of the temperature at which its conductivity at room temperature decreases sharply from a relatively high constant value that its Seebeck coefficient has a negative value, and then cooling the same to room
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Abstract
New amorphous semiconductor and chalcogenide compositions are provided exhibiting n-conductivity characteristics. Chalcogenide compositions, which are normally formed as p-type materials, are converted to n-type materials or are initially formed as n-type materials, by elevating the temperatures thereof below their crystallization temperature and substantially in excess of the temperature at which its conductivity at room temperature versus annealing temperature curve decreases sharply from a relatively high constant value and allowing the same to cool to room temperature.
43 Citations
10 Claims
- 1. An n-type chalcogenide amorphous material as measured by the Seebeck coefficient, said n-type material being that obtained by subjecting a normally p-type amorphous chalcogenide composition to a temperature below its crystallization temperature and which is located at a point on its room temperature versus annealing temperature curve which is sufficiently in excess of the temperature at which its conductivity at room temperature decreases sharply from a relatively high constant value that its Seebeck coefficient has a negative value, and then cooling the same to room
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