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8.7: Diodes, LEDs and Solar Cells
Diodes act as rectifiers in electronic circuits, and also as efficient light emitters (in LEDs) and solar cells ... Typically, a decade change in source-drain current can be achieved with a change in gate voltage of ~70 mV. The performance of FETs as switches and ...
9.2: Solar Energy
Solar photovoltaic (PV) devices, or solar cells, change sunlight directly into electricity. PV uses semiconducting materials such as silicon to produce electricity from sunlight: when light hits the cells, the material produces free electrons that migrate across the cell, creating an electric current.
Progress and prospects of thick-film organic solar cells
With the continuous improvements in the performances of laboratory-scale organic solar cells (OSCs), the development of efficient OSCs with thick active layers compatible with large-area printing processes is an inevitable requirement for commercialization in this field. Although high power conversion effici
Advances in organic photovoltaic cells: a …
Solar cells, also known as photovoltaic cells, are a type of renewable energy source that converts sunlight into electricity through a process called the photovoltaic effect. 13,14 They are made up of a …
Achieving high performance organic solar cells with a closer π–π distance in branched alkyl-chain acceptors
Instead of focusing on the size of the alkyl side chains, we have investigated the influence of side-chain configurations on the properties of acceptors and organic solar cells (OSCs). Two acceptor molecules, BTIC-TCl- b and BTIC-TCl- l were designed by changing the linear configuration of alkyl chain substituents on thiophene …
Organic Solar Cells: Physical Principle and Recent …
Organic solar cells (OSC) based on organic semiconductor materials that convert solar energy into electric energy have been constantly developing at present, and also an effective way to solve the energy …
Fill factor in organic solar cells
The fill factor (FF) is an important parameter that determines the power conversion efficiency of an organic solar cell. There are several factors that can significantly influence FF, and these factors interact with each other very intricately. Due to this reason, a deep understanding of FF is quite difficul
Precursor solution chemistry via water additive enabling CZTSSe solar cells …
High-quality absorber films are imperative for highly efficient Cu2ZnSn(S,Se)4 (CZTSSe) thin-film solar cells. Precursor solution chemistry, interconnected with thin-film nucleation and the crystal growth process, should be studied insightfully. Thus, creative rationales and strategies could be proposed to improve the absorber quality, carrier characteristics, and …
Isomeric Dimer Acceptors for Stable Organic Solar Cells with …
4 · The strategy of isomerization is known for its simple yet effective role in optimizing molecular configuration and enhancing the power conversion efficiency (PCE) of organic …
The Chemistry Behind Inorganic Solar Cells | Bench Talk
The inorganic solar cell relies on chemistry, chemical principles, and the effects of chemical reactions to efficiently convert sunlight into electricity through a semiconducting p-n junction. The doping of two regions, be it silicon or another inorganic material, creates a ...
Charge Carrier Trapping at Surface Defects of …
The trapping of charge carriers at defects on surfaces or grain boundaries is detrimental for the performance of perovskite solar cells (PSCs). For example, it is the main limiting factor for carrier lifetime. …
Emerging Active Materials for Solar Cells: Progress and Prospects
Working principle of a p-n junction-based solar cell. a) Band alignment of the p-n junction. Light with photon energy higher than the bandgap can be absorbed by both n-type or p-type semiconductors to generate e-h pair. Because of inbuilt potential, …
Perovskite Solar Cells | Series on Chemistry, Energy and the …
Energy and climate change are two of the most critical issues nowadays. These two topics are also correlated to each other. Fossil fuels are the main energy supplies that have been used in modern history since the industrial revolution. The impact of CO 2 emission has been a major concern for its effect on global warming and other consequences.
Charge-transfer electronic states in organic solar cells
In organic solar cells, the charge-transfer (CT) electronic states that form at the interface between the electron-donor (D) and electron-acceptor (A) materials have a crucial role in ...
Solar cells | Nature Chemistry
Photoelectrochemical cells are hampered by electron–hole recombination. Now, supramolecular machinery has enabled the docking of macrocyclic electron-accepting redox ...
Solar utilization beyond photosynthesis | Nature Reviews Chemistry
Natural photosynthesis provides attractive design principles for flexible solar utilization technologies through the decoupling and recoupling photoelectrochemical processes. The ...
Complete Perovskite Solar Cells with Gold Electrodes Studied in the Visible and Near-Infrared Ranges | Chemistry …
Complete solar cells with the triple-cation perovskite (FA0.76MA0.19Cs0.05Pb(I0.81Br0.19)3) sandwiched between spiro-OMeTAD (2,2′,7,7′-tetrakis-(N,N-di-4methoxyphenylamino)-9,9′-spirobifluorene) and mesoporous titania layers were examined using femtosecond transient absorption (TA) and steady-state absorption …
Tailoring passivators for highly efficient and stable perovskite solar cells | Nature Reviews Chemistry
Tailoring passivators for highly efficient and stable ... - Nature
Recent advances of computational chemistry in organic solar cell research
The precise design of organic photovoltaic materials and the control of morphology in the active layer are crucial for achieving high-performance organic solar cells (OSCs). However, it still remains difficult to fully obtain the intrinsic properties of organic photovoltaic materials, as well as the details Journal of Materials Chemistry C Recent Review Articles
6.152J Lecture: Solar (Photovoltaic)Cells
Environmental and Market Driving Forces for Solar Cells • Solar cells are much more environmental friendly than the major energy sources we use currently. • Solar cell reached 2.8 GW power in 2007 (vs. 1.8 GW in 2006) • World''s market for solar cells grew 62% in
A new kind of solar cell is coming: is it the future of green energy?
Fiddling with the chemistry and nanoscale engineering of the perovskite cell has delivered performance improvements that have quickly translated to better …
Machine learning empowers efficient design of ternary organic …
2 · Organic solar cells (OSCs) enable low-cost electricity generation while being lightweight, semitransparent, easy to fabricate, highly flexible, and notably efficient [1], [2], …
Organic Solar Cells: Physical Principle and Recent …
Organic solar cells (OSC) based on organic semiconductor materials that convert solar energy into electric energy have been constantly developing at present, and also an effective way to solve the …
Perovskite solar cells: Fundamental aspects, stability challenges, …
Abstract. Interest in perovskite solar cell (PSC) research is increasing because PSC has a remarkable power conversion efficiency (PCE), which has notably …
Recent progress in morphology optimization in perovskite solar cell
Hybrid organic–inorganic halide perovskite based solar cell technology has passed through a phase of unprecedented growth in the efficiency scale from 3.8% to above 25% within a decade. This technology has drawn tremendous research interest because of facile solution processability, ease of large scale manuf
Solar Cell
A solar cell is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon. Crystalline silicon cells are made of silicon atoms connected to one another to form a crystal lattice.
10.7: Diodes, LEDs and Solar Cells
Diodes act as rectifiers in electronic circuits, and also as efficient light emitters (in LEDs) and solar cells ... Typically, a decade change in source-drain current can be achieved with a change in gate voltage of ~70 mV. The performance of FETs as switches and ...