Graded-Gap AlxGa1-xAs X-Ray Detectors with Fast Photovoltaic Response
Materials Science Forum(2002)
Abstract
Fast graded-gap AlxGa1-xAs/GaAs soft X-ray detector with sensitivity in the range of 103 10(4) V/W was created. The delay time of photovoltage response in the p-AlxGa1-xAs/n-GaAs detector is 50 ms, while photovoltagc response in the p(-)-GaAs/p-AlxGa1-x As structure is much shorter, below 1 ms.
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Key words
x-ray detectors,graded-gap AlxGal-xAs structures
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