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Showing posts from August, 2024

Effects of substrate and annealing conditions on the ferroelectric properties of non-doped hfo2 deposited by rf plasma sputter

HIGHLIGHTS What: In this study the effect of annealing and substrate conditions on the ferroelectricity of undoped hafnium oxide (HfO2 ) was analyzed. Ultimately, this study provides valuable insights into optimizing ferroelectric HfO2 for compatibility with conventional semiconductor devices, which could significantly impact the development of future ferroelectric devices. Who: Seokwon Lim et al. from the Department of Energy Systems Research, Ajou University, Suwon, Republic of Korea have published the Article: Effects of Substrate and Annealing Conditions on the Ferroelectric Properties of Non-Doped HfO2 Deposited by RF Plasma Sputter, in the Journal: Nanomaterials 2024, 14, x FOR PEER REVIEW of /2024/ SUMMARY Currently, commercially available memory is mainly divided into volatile and nonvolatile memory, represented by dynamic random-access memory (DRAM) and NAND flash memory, respectively. Perovskite oxide, characterized by an ABX3 crystal_structure, has metal ions ...

Solar photovoltaic buildings: the combination of sustainable energy and green buildings

HIGHLIGHTS What: This comprehensive review explores the multifaceted realm of solar PV buildings examining their design construction energy performance compared to traditional structures environmental consequences and future possibilities. Who: Rhett Rui De Shu from the Thornlea Secondary School, Markham, Ontario, Toronto, L T , Canada have published the Article: Solar photovoltaic buildings: The combination of sustainable energy and green buildings, in the : Proceedings of the 4th International Conference on Materials Chemistry and Environmental Engineering Future: These cutting-edge solutions not only allow for the utilization of solargenerated electricity to power equipment within the building but also enable its storage for future use during periods of low sunlight. SUMMARY SPV architecture contributes to creating comfortable indoor environments while decreasing the environmental footprint simultaneously. SPV Application Potential in Buildings Solar energy is leadi...

Developing a simple algorithm for photovoltaic array fault detection using matlab/simulink simulation

HIGHLIGHTS What: The aim of this paper is to develop a straightforward algorithm predicated on photocurrent values at the PV string level and the overall current output of the PV array. In this paper, two main scenarios will be considered, where the current at the string level is compared between the reference and the faulty conditions. The study aimed to create a simple algorithm based on MATLAB/Simulink simulations to detect faults in a PV array. Who: PV string and colleagues from the Department of Fundamental and Applied Science, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia have published the research work: Developing a Simple Algorithm for Photovoltaic Array Fault Detection Using MATLAB/Simulink Simulation, in the Journal: (JOURNAL) of 22/09/2023 Future: In future work this algorithm will be incorporated into a customized PV monitoring system and will be tested vigorously under real working conditions. SUMMARY The deployment of monitoring and diagnostic s...

Photovoltaic modulating retroreflectors for low power consumption free space optical communication systems

HIGHLIGHTS What: Subsequently, the responsivity was evaluated and compared with the approach described, following . Who: Tiffany McKerahan from the (UNIVERSITY) have published the research work: ORCA – Online Research , in the Journal: (JOURNAL) How: The following criteria were evaluated 1) the presence of the asymmetric Stark effect 2) a ground_state transition energy within the c-band range and 3) minimal lattice mismatch or a potential for strain-balancing. * 𝐿𝑏 was the thickness of the barrier. 𝑚𝑏𝑖 was the effective mass in the barrier for a given band. Future: Characterization following epitaxy would be required to determine and then optimize these parameters in future studies. SUMMARY F REE space optics (FSO) is a secure, high bandwidth method of wireless communication without spectrum licensing requirements. The authors investigated epi-structures for electroabsorption modulators, which are capable of detecting an incident beam under a zero-bias condition...

Large-scale green grabbing for wind and solar photovoltaic development in brazil

HIGHLIGHTS What: The study provides a detailed assessment, both quantitatively and spatially, of the scale of green grabbing for wind and solar PV park areas. The authors assess the land tenure situation of the parks to shed light on various control grabbing dynamics. The authors show European actors, such as the Italian Enel SpA and Actis LLP from the UK, are driving large-scale appropriation and control of land for wind and solar PV parks, acting as direct owners. The authors focus the analysis on identifying different schemes of land appropriation and claims for the expansion of wind and solar PV parks, rather than alternative land-uses. Who: Posted Date September et al. from the Green grabbing, large-scale land appropriation, wind power, solar PV, Brazil Institute of Sustainable Economic Development, University of Natural Resources and Life Sciences have published the paper: Large-scale green grabbing for wind and solar PV development in Brazil, in the Journal: (JOURNAL)...