SYSTEMS AND METHODS FOR LIGHT ABSORPTION AND FIELD EMISSION USING MICROSTRUCTURED SILICON
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Abstract
Methods and systems for absorbing infrared light, and for emitting current are described. A sample, such as a sample containing mainly silicon, is microstructured by at least one laser pulse to produce cone-like structures on the exposed surface. Such microstructuring enhances the infrared absorbing, and current emission properties of the sample.
104 Citations
95 Claims
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1-58. -58. (canceled)
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59. A method of emitting electrons from a sample, comprising
structuring a surface of a semiconductor sample by applying a plurality of radiation pulses thereto, and applying an electric field to the structured sample so as to cause the sample to emit an electric current.
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79. A method of generating an emitted electric current, comprising providing a semiconductor sample characterized by a turn-on field of less than about 10 V/μ
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applying an electric field to the sample so as to cause the sample to emit an electric current. - View Dependent Claims (80, 81)
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82. A system for emitting an electric current, comprising
a semiconductor sample characterized by a turn-on field that is less than about 10 V/μ - m,
an electric field generator for applying an electric field to the sample so as to cause the sample to emit an electric current, and a load for receiving said electric current and generating a signal in response to said received electric current. - View Dependent Claims (83, 84, 85, 86, 87)
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88. A method of generating luminescence radiation, comprising
applying a plurality of radiation pulses to a silicon sample in the presence of a background gas so as to generate a plurality of luminescence states in the sample, and causing said silicon sample to luminescence.
Specification