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A simple and versatile in situ fabrication of MAPbX3 nanocrystal‐embedded polymer composite films is developed by controlling the crystallization process from precursor solutions. The composite films exhibit enhanced photoluminescence properties, improved stability, and excellent piezoelectric and mechanical properties. Applications of these composite films as color converters in liquid‐crystal‐display...
A two-stage charge sensitive amplifier structure suitable for silicon radiation detector with large capacitance is proposed. It has the advantage that the integration capacitor can be large to reduce the gain sensibility to detector capacitance variation without any stability problem. The feasibility of the proposed circuit is verified by comparing the simulation results with the conventional one-stage...
A readout integrated circuit (ROIC) for uncooled infrared focal plane array (IRFPA) is presented in this paper. The ROIC is designed for a 384×288 detector array made of amorphous silicon microbolometers with a pixel-pitch of 35μm. A capacitive trans-impedance amplifier (CTIA) is used in each column to integrate the pixel signal. The design is tuned on a detailed theoretical analysis of the sensor...
This paper describes a radiation detection readout circuit for portable dosimeter which is aimed at low power, low noise and high counting rate. A current feedback baseline holder circuit is proposed to solve the baseline shift problem without any other performance deterioration. The core circuit has been implemented in 0.35μm CMOS technology. It achieves 46mV/fC conversion gain, 200kcps counting...
This paper presents a switched-capacitor readout circuit designed for the closed-loop MEMS capacitive accelerometer with a full scale of ±2g. The offset voltage of amplifiers is compensated and the low-frequency noise is reduced by using CDS technique, thus the precision of the whole system is significantly improved. The chip has been fabricated in a 0.35μm 15V CMOS technology and the equivalent noise...
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