نتایج جستجو برای: quantum well

تعداد نتایج: 1778691  

Journal: :Journal of Physics: Conference Series 2006

Journal: :Mathematical Problems in Engineering 2012

Journal: :American Journal of Physics 2010

Journal: :Physica E: Low-dimensional Systems and Nanostructures 2002

حمید هراتی‌زاده, , مرتضی اسمعیلی, , پر اولاف هولتز, ,

Internal polarizations field which take place in quantum structures of group-III nitrides have an important consequence on their optical properties. Optical properties of wurtzite AlGaN/GaN quantum well (QW) structures grown by MBE and MOCVD on c-plane sapphire substrates have been investigated by means of photoluminescence (PL) and time resolved photoluminescence (TRPL) at low-temperature. PL ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده علوم پایه 1385

چکیده ندارد.

1999
C. J. Chen K. K. Choi L. Rokhinson W. H. Chang D. C. Tsui

Despite the rapid development of the quantum well ~QW! infrared technology, the intrinsic properties of the QW infrared photodetectors ~QWIPs! have not been directly measured under the operating conditions of the detector. In this work, we introduce a characterization technique, which utilizes the surface corrugation to probe the absorption coefficient and the photoconductive gain of a QWIP und...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم پایه 1391

a simple, rapid and low-cost scanner spectroscopy method for the glucose determination by utilizing glucose oxidase and cdte/tga quantum dots as chromoionophore has been described. the detection was based on the combination of the glucose enzymatic reaction and the quenching effect of h2o2 on the cdte quantum dots (qds) photoluminescence.in this study glucose was determined by utilizing glucose...

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