arXiv subjects

Mehran Hosseinzadeh Dizaj

Publications and source records attributed to Mehran Hosseinzadeh Dizaj.

3 recordsLinked to original sources

arXiv2026

Polyaniline as a conductive polymer and its role in improving the efficiency and conductivity of perovskite solar cells

This article investigates the role of polyaniline as a conductive polymer in the active layer of perovskite solar cells. Samples were created by incorporating polyaniline into the transport layers to assess its impact on enhancing efficiency and conductivity. The application of this polymer across various layers of the cell structure led to improved stability and performance. Given its high doping capability, polyaniline was examined in detail, particularly focusing on two types of oxidation doping and its integration into the hole transport layer. Graphene oxide and reduced graphene oxide were chosen as comparative models, and their performance was evaluated against the standard polyaniline configuration. Laboratory results revealed that power conversion efficiency increased by 17.5% with graphene oxide and by 36.8% with reduced graphene oxide. Furthermore, short-circuit current density improved by 9.8% and 23.1%, respectively. These findings are consistent with existing studies in the field and support the validity of the approach.

physics.chem-ph↗

arXiv2024

Impact of Doping Spiro-OMeTAD with Li-TFSI, FK209, and tBP on the Performance of Perovskite Solar Cells

This study delves into the effects of doping Spiro-OMeTAD, a widely employed hole transport material (HTM) in perovskite solar cells, with three distinct impurities: lithium bis(trifluoromethanesulfonyl)imide (Li-TFSI), FK209, and tertbutylpyridine (tBP). The focus lies on their influence on critical photovoltaic parameters, including Fill Factor (FF), power conversion efficiency (eta), short-circuit current density (Jsc), and open-circuit voltage (Voc). Employing advanced simulation tools, we systematically compare the performance of undoped and doped Spiro-OMeTAD structures. Among the examined dopants, Li-TFSI exhibits the most pronounced enhancements, significantly improving both FF and efficiency. In contrast, FK209 and tBP yield moderate gains in device performance. These results underscore the superior charge transport properties imparted by Li-TFSI doping and its capacity to optimize HTM functionality, thereby presenting a promising approach to advancing the efficiency and stability of perovskite solar cells

cond-mat.mtrl-sci↗

arXiv2023

Design and implementation of grid-connected photovoltaic power plant with the highest technical Efficiency

Energy is a necessity and the basis of human life. With the increase in the need for energy supply in recent years, the use of fossil fuels has intensified. Environment is a basic principle for human beings. In our dear country Iran, with an average sundial of approximately 4.5 hours per day, there is the highest potential for the use of photovoltaic systems. Connected to the national power grid as a micro grid, in accordance with the standardization and the highest efficiency with PVsyst software, the system losses were identified and the necessary solutions were provided to solve them. In case of using 1 to 5 kW systems, which due to small It can be installed even on the roofs of houses. In hot cities, where electricity consumption increases in the hot seasons of the year, the pressure is removed from the national electricity distribution network, and a significant amount of greenhouse gas emissions to the environment is prevented. At the end by plotting the current value of the project it was also proven to be economical.

physics.soc-ph↗