Source: World Scientific Publishing The Impact of Surface Recombination on Solar Cell Efficiency Understanding Surface Recombination Surface recombination, which occurs at the surface of solar cells where the crystal lattice is disrupted, is a significant factor impacting solar cell efficiency. This process leads to high rates of recombination, which can limit the overall performance of…
Source: YouTube **Understanding Contact Resistance and Current Crowding in Solar Cells** Contact resistance is a significant issue in silicon solar cells, occurring at the interface between the cell and the metal contact. To minimize losses, the top N+ layer must be heavily doped. However, excessive doping can lead to problems like the formation of a…
Source: The Engineering Projects Understanding Semiconductors: An Atomistic Perspective Atomic Structure of Semiconductors Semiconductors, like Silicon (Si), are composed of atoms arranged in a regular pattern where each atom is surrounded by 8 electrons. An atom consists of a nucleus comprising protons and neutrons, surrounded by electrons. The electrons in a semiconductor participate in covalent…
Source: InsideEVs Columbic Efficiency The columbic efficiency of a battery is a crucial parameter that indicates the ratio of the amount of charge that enters the battery during charging to the amount that can be extracted during discharging. High columbic efficiency, often exceeding 95%, is desirable as it signifies minimal losses in the battery due…
Source: YouTube Semiconductor Carrier Concentration Overview Semiconductors are materials that contain both majority and minority charge carriers. Majority carriers are more abundant, while minority carriers are less abundant. The equilibrium carrier concentration in a semiconductor can be altered through a process called doping, where impurities are intentionally added to the material. Equilibrium Carrier Concentration The…
Source: Britannica Understanding Blackbody Radiation Blackbody radiation is a concept that helps us understand how objects emit light based on their temperature. Many light sources we encounter in our daily lives, such as the sun and incandescent light bulbs, can be approximated as blackbody emitters. A blackbody absorbs all radiation that falls on it and…
Source: National Centers for Environmental Information – National Oceanic and Atmospheric Administration The Significance of Spectral Irradiance in Light Source Characterization Understanding Spectral Irradiance Spectral irradiance, denoted by F, is a crucial parameter for characterizing a light source. It represents the power density at a specific wavelength and is measured in units of Wm-2 µm-1.…
Source: YouTube Ideality Factor in Diodes The Ideality Factor in Diodes Recombination Mechanisms The ideality factor of a diode is a measure of how closely it follows the ideal diode equation. This factor, denoted by ‘n’, provides insights into deviations from the ideal behavior due to recombination mechanisms within the diode. The ideal diode equation…
Source: Unstop Elevation Angle The elevation angle, also known as the altitude angle, is the angular height of the sun in the sky measured from the horizontal plane. It varies throughout the day and depends on the latitude of the location and the day of the year. Calculation of Elevation Angle The elevation angle at…
Source: MDPI Understanding Anti-Reflection Coatings in Solar Cells Double Layer Anti-Reflection Coating (DLARC) A double layer anti-reflection coating (DLARC) is a method used to further reduce the reflectivity of surfaces, such as those in solar cells. Popular materials used in DLARCs include zinc sulfide (ZnS) with magnesium fluoride (MgF) or layers of silicon nitride with…