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Now showing items 181-190 of 467
Quantification of pv power and economic losses due to soiling in Qatar
(
MDPI
, 2021 , Article)
Soiling losses of photovoltaic (PV) panels due to dust lead to a significant decrease in solar energy yield and result in economic losses; this hence poses critical challenges to the viability of PV in smart grid systems. ...
N719-dye based electrochemical light and temperature sensor
(
Electrochemical Science Group
, 2020 , Article)
In this article, electrochemical N719-Dye based integrated light and temperature sensors have been
reported. The fabricated sensor exhibits interesting features such as low cost, simple fabrication
process, high sensitivity ...
Multiparametric Sensor Node for Environmental Monitoring Based on Energy Harvesting
(
MDPI
, 2022 , Article)
The heterogeneity and levels of chemicals released into the environment have dramatically grown in the last few years. Therefore, new low-cost tools are increasingly required to monitor pollution and follow its trends over ...
Consequence of aging at Au/HTM/perovskite interface in triple cation 3D and 2D/3D hybrid perovskite solar cells
(
Nature Research
, 2021 , Article)
Perovskite solar cells (PSCs) expressed great potentials for offering a feasible alternative to conventional photovoltaic technologies. 2D/3D hybrid PSCs, where a 2D capping layer is used over the 3D film to avoid the ...
Assessing mobile ions contributions to admittance spectra and current-voltage characteristics of 3D and 2D/3D perovskite solar cells
(
Elsevier B.V.
, 2020 , Article)
Recently, the 2D perovskite layer is employed as a capping/passivating layer in the perovskite solar cells (PSCs). The 2D perovskite layer is prepared by inserting a large-sized hydrophobic cation spacer into the perovskite ...
Facile preparation of N-S co-doped graphene quantum dots (GQDs) from graphite waste for efficient humidity sensing
(
Elsevier B.V.
, 2021 , Article)
In this work, graphene quantum dots (GQDs) were prepared from Graphitic waste. The resulting GQDs were evaluated for the potential application for resistive humidity sensors. The resistive humidity sensors were fabricated ...
Synthesis of in situ photoinduced halloysite-polypyrrole@silver nanocomposite for the potential application in humidity sensors
(
MDPI AG
, 2020 , Article)
Halloysite-polypyrrole-silver nanocomposite has been prepared via in situ photopolymerizations of pyrrole in the presence of silanized halloysite and silver nitrate as a photoinitiator. The halloysite nanoclay (HNT) was ...
Development of innovative indoor/outdoor air quality monitoring for environmental impact assessment in the State of Qatar
(
WITPress
, 2014 , Article)
Air pollution is one of the most crucial factors affecting the quality of life and health of increasingly urban populations; a country with a fast-growing economy based on hydrocarbons such as Qatar is no exception. In ...
Secure smart contract-enabled control of battery energy storage systems against cyber-attacks
(
Elsevier B.V.
, 2019 , Article)
Battery Energy Storage Systems (BESSs) are an integral part of a sustainable and resilient smart grid. The security of such critical cyber-physical infrastructure is considered as a major priority for both industry and ...
Unleashing the secure potential of the wireless physical layer: Secret key generation methods
(
Elsevier B.V.
, 2016 , Report)
Within the paradigm of physical layer security, a physical layer characteristic is used as a common source of randomness to generate the secret key. This key is then used to encrypt the data to hide information from ...