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In this paper we report the novel assembly method of a biosensor unit based on 64 pixel photodetector array with a proprietary semiconductor quantum dots (QDs) quantum well (QW) hybrid structure. There is significantly lower dark current for optimized high sensitivity detector. The capacitive trans-impedance amplifier (CTIA)-correlated double sampling (CDS) readout circuit can readout weak optical...
We have developed a micro spectrometer with 64 pixel GaAs base n-i-dot-in-well-i-n photo detector linear array. The physical model has established by its current-voltage, capacitance-voltage and Capacitance to frequency relationship. The model could be easily integrated with the readout circuit for special readout design optimization to realize the wide wavelength range under different radiation (especially...
We have designed and developed a field deployable biosensor unit based on a novel proprietary quantum dots-quantum well hybrid structure. We analyzed in detail the detection sensitivity and in particular weak light detection and analysis of the semiconductor optoelectronic device. We designed a readout circuit and a data processing unit to handle the response signal. The sensor unit is equipped with...
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