Characteristics of a tunneling quantum-dot infrared photodetector operating at room temperature

@inproceedings{Bhattacharya2005CharacteristicsOA,
  title={Characteristics of a tunneling quantum-dot infrared photodetector operating at room temperature},
  author={Pallab Bhattacharya and Xiaohua Su and Subhananda Chakrabarti and G. Ariyawansa and A. G. Unil Perera},
  year={2005}
}
We report high-temperatures240–300 Kd operation of a tunneling quantum-dot infrared photodetector. The device displays two-color characteristics with photoresponse peaks at ,6 mm and 17mm. The extremely low dark current density of 1.55 A/cm 2 at 300 K for 1 V bias is made possible by the tunnel filter. For the 17 mm absorption, the measured peak responsivity is 0.16 A/W s300 Kd for a bias of 2 V and the specific detectivity D* is 1.53107 cm Hz1/2/W s280 Kd for a bias of 1 V. Excellent… CONTINUE READING

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EPITAXIAL QUANTUMDOT INFRARED PHOTODETECTORS

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Photocurrent Modeling and Detectivity Optimization in a Resonant-Tunneling Quantum-Dot Infrared Photodetector

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  • 2010
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