Assistant Professor, COMSATS University Islamabad Pakistan
Temperature sensing is critical to managing the day to day affairs in both domestic and industrial proceedings. We propose an all printed environment-friendly, biocompatible, sustainable sucrose based temperature sensor that is at par with other sensors of the same genre that are not so environment friendly.
Abstract: Kunjian Cao, Yi Liu, Shiliang QuA compact and robust fiber temperature sensor based on a hermetically-sealed liquid-filling Fabry–Perot (FP) cavity was fabricated by low-cost but efficient processes, including fusion splicing, liquid injection, and fused tapering. Owing to the high thermal optical coefficient (TOC) of the ... [Opt. Express 25, 29597-29604 (2017)]
Pub.: 27 Nov '17, Pinned: 12 Jul '18
Abstract: Luís Cicero Bezerra da Silva, Jorge Leonid Aching Samatelo, Marcelo Eduardo Vieira Segatto, João Paulo Bazzo, Jean Carlos Cardozo da Silva, Cicero Martelli, Maria José PontesThis paper proposes an approach to process the response of a distributed temperature sensor using a nonlinear autoregressive with external input neural network. The developed model is composed of three steps: extraction of characteristics, regression, and reconstruction of the signal. Such an ... [Appl. Opt. 57, 5859-5864 (2018)]
Pub.: 10 Jul '18, Pinned: 12 Jul '18
Abstract: Printed organic sensors are of significant importance owing to their simplicity, low cost, easy fabrication and solution processability. However, organic sensors often face the problem of performance degradation when exposed to ambient environment therefore, the effect of humidity needs to be studied for prolonging the lifetime of organic sensors. In this study, we propose atomically thin and highly reliable encapsulation layer on the surface of an organic functional material to enhance its lifetime as a temperature sensing unit. Our organic temperature sensor is based on a conductive and uniform IDT pattern deposited on a glass substrate through advanced printing technology of reverse offset. Thin film of PEDOT:PSS is used as the temperature sensitive functional layer deposited through electrohydrodynamic atomization while the organic thin film was encapsulated with aluminum oxide (Al2O3) through spatial atmospheric atomic layer deposition system (SAALD). The temperature range of the developed sensors was from 25 to 90 °C with relative humidity reaching up to 75% RH. The obtained results exhibited that Al2O3 encapsulation deposited through SAALD significantly enhanced the linearity, repeatability, endurance (50 cycles), retention (1 month) and lifetime of organic temperature sensor as compared to the non-encapsulated sensor. The performance degradation mechanism of non-encapsulated sensor due to humid environment has been discussed in detail. This study contributes an important step forward for preserving the performance and elongating the lifetime of organic electronic devices through a single atomically thin encapsulation.
Pub.: 09 Jul '18, Pinned: 12 Jul '18