| ชื่อเรื่อง | : | Theoretical study of quantum well infrared photodetectors with asymmetric well and barrier structures for broadband photodetection |
| นักวิจัย | : | Liu, W. , Zhang, Dao Hua , Huang, Z. M. , Fan, Weijun |
| คำค้น | : | DRNTU::Engineering::Electrical and electronic engineering. |
| หน่วยงาน | : | Nanyang Technological University, Singapore |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2550 |
| อ้างอิง | : | Liu, W., Zhang, D. H., Huang, Z. M.,& Fan, W. (2007). Theoretical study of quantum well infrared photodetectors with asymmetric well and barrier structures for broadband photodetection. Journal of applied physics, 101, 033114. , 0021-8979 , http://hdl.handle.net/10220/18166 , http://dx.doi.org/10.1063/1.2434938 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | Journal of applied physics |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | The n-type InGaAs/AlxGa1−xAs quantum well infrared photodetector QWIP with asymmetric graded barriers for broadband detection has been investigated theoretically based on the eight-band k·p model. It is found that the intersubband transitions from the ground state to all bound and continuum excited states contribute to the overall absorption and the bound-to-continuum B-to-C transitions dominate. The superposition of the bound-to-bound and B-to-C transitions results in a broad detection bandwidth, and both the detected wavelength and bandwidth can be tuned by the applied voltage. The analysis method is also applicable to the GaAs/ InxGa1−xAs/ InyGa1−yAs QWIP with step quantum wells. The calculated results are consistent with the reported experimental observations. |
| บรรณานุกรม | : |
Liu, W. , Zhang, Dao Hua , Huang, Z. M. , Fan, Weijun . (2550). Theoretical study of quantum well infrared photodetectors with asymmetric well and barrier structures for broadband photodetection.
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Liu, W. , Zhang, Dao Hua , Huang, Z. M. , Fan, Weijun . 2550. "Theoretical study of quantum well infrared photodetectors with asymmetric well and barrier structures for broadband photodetection".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Liu, W. , Zhang, Dao Hua , Huang, Z. M. , Fan, Weijun . "Theoretical study of quantum well infrared photodetectors with asymmetric well and barrier structures for broadband photodetection."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2550. Print. Liu, W. , Zhang, Dao Hua , Huang, Z. M. , Fan, Weijun . Theoretical study of quantum well infrared photodetectors with asymmetric well and barrier structures for broadband photodetection. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2550.
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