Abdelowahed Hajjaji

ORCID: 0000-0002-4863-4753
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About
Contact & Profiles
Research Areas
  • Innovative Energy Harvesting Technologies
  • Advanced Sensor and Energy Harvesting Materials
  • Dielectric materials and actuators
  • Ferroelectric and Piezoelectric Materials
  • Acoustic Wave Resonator Technologies
  • Energy Harvesting in Wireless Networks
  • Hydrogen Storage and Materials
  • Luminescence Properties of Advanced Materials
  • Glass properties and applications
  • Chalcogenide Semiconductor Thin Films
  • Quantum Dots Synthesis And Properties
  • Advanced Battery Technologies Research
  • Conducting polymers and applications
  • Solar Thermal and Photovoltaic Systems
  • TiO2 Photocatalysis and Solar Cells
  • High voltage insulation and dielectric phenomena
  • Microwave Dielectric Ceramics Synthesis
  • Photovoltaic System Optimization Techniques
  • Solar Radiation and Photovoltaics
  • Hybrid Renewable Energy Systems
  • Advanced Thermoelectric Materials and Devices
  • Advanced MEMS and NEMS Technologies
  • Advancements in Battery Materials
  • Multiferroics and related materials
  • Bone Tissue Engineering Materials

Chouaib Doukkali University
2016-2025

Laboratoire des Sciences de l'Ingénieur pour l'Environnement
2021-2022

École Nationale de la Statistique et de l'Administration Économique
2021-2022

École Marocaine des Sciences de l'Ingénieur
2022

National School of Architecture
2022

Mohammed V University
2021

Université Ibn Zohr
2020

École Normale Supérieure - Marrakech
2010-2016

Centre National de la Recherche Scientifique
2016

Institut des Sciences et Technologies Moléculaires d'Angers
2016

Abstract Erbium‐incorporated silicophosphate glasses are very desirable in principal sectors such as photonics, optoelectronics, lasers, and illuminating diodes. The focus of the current investigation has been on determining how erbium dopant affects optical, physical, structural characteristics silicophosphate‐based glasses. pure doped with various contents were prepared by sol–gel process this work. noncrystalline character synthesized was confirmed XRD patterns that obtained. optical...

10.1002/bio.4802 article EN Luminescence 2024-06-01

In the contemporary quest for sustainable energy, potential of piezoelectric energy harvesters to convert mechanical vibrations into electrical has become increasingly important. This study focuses on composites, in particular a BaTiO3/PLA (Barium Titanate/ Polylactic Acid) system with different volume percentages BaTiO3 ceramic particles (20%, 40% and 60%), aim optimizing conversion efficiency. A mathematical model is introduced, encompassing material attributes, loading frequencies...

10.1016/j.mne.2024.100253 article EN cc-by-nc-nd Micro and Nano Engineering 2024-04-15

Building retrofitting plays a key-role in energy saving and growing interest is focused on insulating materials that allow reduction heat loss from envelopes with low thickness, by process of reducing heating cooling demand. In this context, complete characterization the physical properties Moroccan natural gypsum was carried out. Basic information mineralogical, microstructure, thermal, mechanical, acoustic characteristics rocks sampled two regions provided. It found mineralogy, porosity,...

10.3390/app9122443 article EN cc-by Applied Sciences 2019-06-14

An unprecedented rate of construction has profoundly increased the risk scarcity natural resources and threatened ecosystem sustainability. To establish an effective sustainable development policy, it is imperative to promote use responsible production channels, including waste recycling. Reuse harbor dredged sediment commonly investigated as a valuable alternative non-renewable needed for construction. Sediment characterization decisive in valorization process, aiming identify potential...

10.3390/su15031834 article EN Sustainability 2023-01-18

This paper presents an enhanced cooling approach for Photovoltaic/Thermal (PV/T) systems aimed at improving the thermal management and overall efficiency of photovoltaic cells. The comparative study investigates two novel copper tubing designs: symmetric asymmetric serpentine configurations. Both designs were tested under identical conditions with a water flow rate 2.44 L/min to analyze their influence in reducing operating temperature PV modules. numerical results show that design reduced...

10.1051/e3sconf/202560100107 article EN cc-by E3S Web of Conferences 2025-01-01
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