Microcalorimetric absorption spectroscopy in GaN-AlGaN quantum wells

机译：GaN-AlGaN量子阱中的微量量热吸收光谱

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Microcalorimetric measurements of small absorption coefficients have been performed on thin GaN-AlGaN quantum wells grown by Reactive Molecular Beam Epitaxy on Al_2O_3 substrates. In addition to strong absorption at the energy of the GaN buffer and at the energy of the thick AlGaN barrier layers, we could also readily detect transitions associated to the quantum well. These measurements which pave the way to a precise determination of the gap mismatch between the well and the barrier layers are combined with self consistent excitonic and envelope function calculations in the context of a model for the band line-ups which includes the piezoelectric effect.

机译：在由Al_2O_3衬底上通过反应分子束外延生长的GaN-AlGaN量子阱上，进行了小吸收系数的微量量热测量。除了在GaN缓冲层的能量和厚AlGaN势垒层的能量上具有强吸收能力外，我们还可以轻松地检测与量子阱相关的跃迁。这些测量为精确确定阱和势垒层之间的间隙失配铺平了道路，在包含压电效应的能带排列模型的背景下，将其与自洽的激子和包络函数计算相结合。

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《Symposiuml on Nitrides and Related Wide Band Gap Materials of the E-MRS 1998 Spring Conference, Strasbourg, France,16-19 June 1998》|1998年|p.319-322|共4页
会议地点 Strasbourg(FR)
作者
Axel Goldner; Axel Hoffmann; Bernard Gil; Pierre Lefebvre; Pierre Bigenwald; Philippe Christol; Hadis Morkoc;
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正文语种 eng
中图分类无线电电子学、电信技术;
关键词
Wide bandgap semiconductors; Low dimensional systems; Optical properties; Excitons;

机译：宽带隙半导体；低维系统；光学性质；激子;

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专利

1. Photoreflectance Spectroscopy Investigation of GaN-AlGaN Quantum Well Structures [J] . T. J. Ochalski, B. Gil, T. Bretagnon, Physica status solidi, B. Basic research . 1999,第1期

机译：GaN-AlGaN量子阱结构的光反射光谱研究
2. CW and Time-Resolved Optical Spectroscopy of GaN Epilayers and GaN-AlGaN Quantum Wells Grown on A-Plane Sapphire [J] . M. Gallart, T. Taliercio, A. Alemu, Physica status solidi, B. Basic research . 1999,第1期

机译：A平面蓝宝石上生长的GaN外延层和GaN-AlGaN量子阱的连续波和时间分辨光谱
3. Infrared microcalorimetric spectroscopy using quantum cascade lasers [J] . M. E. Morales-Rodriguez, L. R. Senesac, S. Rajic, Optics Letters . 2013,第4期

机译：使用量子级联激光器的红外微量量热法
4. Microcalorimetric absorption spectroscopy in GaN-AlGaN quantum wells [C] . Axel Goldner, Axel Hoffmann, Bernard Gil, Symposium L on nitrides and related wide band gap materials of the E-MRS conference . 1999

机译：GaN-Algan量子阱中的微量微核空谱吸收光谱
5. Charge Carrier Dynamics of Quantum Confined Semiconductor Nanoparticles Analyzed via Transient Absorption Spectroscopy [D] . Thibert, Arthur Joseph, III. 2012

机译：瞬态吸收光谱法分析量子受限半导体纳米粒子的载流子动力学
6. A Trace Carbon Monoxide Sensor Based on Differential Absorption Spectroscopy Using Mid-Infrared Quantum Cascade Laser [O] . Chen Chen, Qiang Ren, Heng Piao, 2018

机译：差示吸收光谱的中红外量子级联激光示踪一氧化碳传感器
7. Optimal design of GaN-AlGaN Bragg-confined structures for ud intersubband absorption in the near-infrared spectral rangeud [O] . Radovanovic J., Milanovic V., Ikonic Z., 2003

机译：GaN-alGaN布拉格约束结构的优化设计近红外光谱范围内的子带间吸收 ud
8. Infrared microcalorimetric spectroscopy using uncooled thermal detectors [R] . 1997

机译：使用非冷却热探测器的红外微量热光谱

Microcalorimetric absorption spectroscopy in GaN-AlGaN quantum wells

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