Abstract:
Pressure is a fundamental physical quantity or parameter which is used in field of sensor
applications. Pressure sensors are used for different perspective in various field of research
and industry. It has great interest in different of application like health care, automotive
industries, aerospace industries and down-hall monitoring in oil wells. At present, there are
many types of pressure sensors available like piezo-resistive sensor, capacitive type
pressure, piezoelectric sensor but optical pressure sensors have different properties as high
sensitivity, light weight, small size, environmental ruggedness, low cost compared with
existing pressure sensors. We have designed the low cost optical pressure sensor using
Polydimthylsiloxane (PDMS) an elastomeric polymer having 10:1 base and its cross linker
regent network, based flexible grating which are crack free and durable and hybrid
perovskite material Methyl-lade tri bromide (𝑀𝐴𝑃𝑏𝐵𝑟) based Photodetector because
perovskite or hybrid perovskite materials are highly light emitter and absorber due to its
energy band gap tuneable flexibility and these are highly light sensitive materials. The
range of applied pressure on the PDMS grating of 1.4μm grating pitch and 160nm grating
depth is 0 to 0.3945MPa and sensitivity is 0.0263MP𝑎.Similarly the applied pressure
range on PDMS grating having grating pitch 0.7μm and grating depth 50nm is 0 to
0.337692MPa and Sensitivity is 0.0263MP𝑎.Such type of sensor can be used in the
treatment of neurological disorder problems like headache and blood pressure
