Results 221 to 230 of about 246,248 (264)
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Paper-Based Photoconductive Infrared Sensor
The Journal of Physical Chemistry C, 2011We report sensitivity to infrared radiation from a simple paper-made device, which increases its conductivity when exposed to hot objects. We propose that the conductivity of this device is due to ionic currents involving electrolyte salts dissolved in thin film of liquid dispersed over the paper surface, thus the current increases because of heating ...
Alejandro J. Gimenez +2 more
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Paper-Based Hydrogen Sensors Using Ultrathin Palladium Nanowires
ACS Applied Materials & Interfaces, 2023Hydrogen (H2), as a chemical energy carrier, is a cleaner alternative to conventional fossil fuels with zero carbon emission and high energy density. The development of fast, low-cost, and sensitive H2 detection systems is important for the widespread adoption of H2 technologies.
Abhishek Kumar +3 more
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IEEE Sensors Journal, 2015
In this paper, we report the development of an oxygen sensor using a simple device made from a film of ZnO crystals dispersed over a paper surface. Due to the high porosity of this kind of device made from paper and ZnO, a large photoconductive effect is observed as result of the fast absorption and desorption of oxygen from the ZnO surface.
Alejandro J. Gimenez +3 more
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In this paper, we report the development of an oxygen sensor using a simple device made from a film of ZnO crystals dispersed over a paper surface. Due to the high porosity of this kind of device made from paper and ZnO, a large photoconductive effect is observed as result of the fast absorption and desorption of oxygen from the ZnO surface.
Alejandro J. Gimenez +3 more
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ZnO−Paper Based Photoconductive UV Sensor
The Journal of Physical Chemistry C, 2010We build sensors, capable of detecting and measuring ultraviolet (UV) light, by depositing zinc oxide (ZnO) powder from a solvent suspension over common white paper. Although these sensors are easy to fabricate and require inexpensive materials, they feature characteristics similar to those of UV sensors made with complex and expensive procedures.
Alejandro J. Gimenez +2 more
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An Ultrasensitive Fluorescent Paper-Based CO2 Sensor
ACS Applied Materials & Interfaces, 2020We demonstrate a versatile and easily fabricated paper-based CO2 sensor. The sensor consists of a specially designed fluorescent color-shift chromophore infused into standard filter paper. The emission color of the resulting fluorescent paper changes upon exposure to CO2 due to the formation of carbonic acid, which underlies the sensing mechanism.
Hui Wang +3 more
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Paper-based piezoresistive MEMS force sensors
2011 IEEE 24th International Conference on Micro Electro Mechanical Systems, 2011This paper describes the development of piezoresistive MEMS force sensors constructed using paper as the structural material. The sensing principle of the paper-based sensor is based on the piezoresistive effect of conductive materials patterned on a paper substrate.
X.Y. Liu +4 more
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Paper Based Sensors for Environmental Monitoring
2019Environmental pollution has become the major concern for the environmentalists in the recent times. Continuously increasing population and development of human race demands abundant amount of resources such as electricity and water for domestic as well as industrial work.
Pankaj Singh Chauhan +2 more
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Progress in Paper-based Colorimetric Sensor Array
Chinese Journal of Analytical Chemistry, 2020Abstract Paper-based colorimetric sensor array has attracted extensive attention due to its low-cost, easy-operation, powerful discrimination, good selectivity, rapid response and versatility. It combines the advantages of paper-based analytical devices and colorimetric sensor array, and extends its application fields in analytical chemistry.
Yan-Qi LI, Liang FENG
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Paper-based chemical and biological sensors: Engineering aspects
Biosensors and Bioelectronics, 2016Remarkable efforts have been dedicated to paper-based chemosensors and biosensors over the last few years, mainly driven by the promise of reaching the best trade-off between performance, affordability and simplicity. Because of the low-cost and rapid prototyping of these sensors, recent research has been focused on providing affordable diagnostic ...
Snober, Ahmed +2 more
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Paper-Based Bimodal Sensor for Electronic Skin Applications
ACS Applied Materials & Interfaces, 2017We present the development of a flexible bimodal sensor using a paper platform and inkjet printing method, which are suited for low-cost fabrication processes and realization of flexible devices. In this study, we employed a vertically stacked bimodal device architecture in which a temperature sensor is stacked on top of a pressure sensor and operated ...
Minhyun Jung +7 more
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