Spectral responsivity of single-quantum-well photodetectors
نویسندگان
چکیده
The photoresponsivity spectra of double-barrier resonant tunneling diodes have been measured in a wide range of light wavelength as well as applied voltage. The complex behavior of measured spectra is analyzed taking into account different channels for electron injection into the quantum well ~QW!. It has been shown that the photoresponse in the infrared wavelength range could arise not only from the electrons excited inside the QW, but also from the two-dimensional electrons confined on the quantum level in the spacer accumulation layer. © 2000 American Institute of Physics. @S0003-6951~00!03127-2#
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