What is work function in solar cell?
From Wikipedia, the free encyclopedia. In solid-state physics, the work function (sometimes spelled workfunction) is the minimum thermodynamic work (i.e., energy) needed to remove an electron from a solid to a point in the vacuum immediately outside the solid surface.
How does an organic solar cell work?
A typical organic solar cell consists of two semiconducting layers made of plastic polymers and other flexible materials. The cell generates electricity by absorbing particles of light, or photons. This continuous movement of electrons from hole to hole produces an electric current.
What is the efficiency of organic solar cells?
Organic photovoltaics have achieved efficiencies near 11%, but efficiency limitations as well as long-term reliability remain significant barriers. Unlike most inorganic solar cells, OPV cells use molecular or polymeric absorbers, which results in a localized exciton.
How much is the work efficiency of solar cell?
Today, most solar panels provide an energy efficiency rating between 11 and 15 percent, which is the percentage of solar energy that is being converted into useable electricity.
How is work function calculated?
In mathematical terms, ϕ=hf−K, where ϕ is the work function and K is the kinetic energy of the electron. Thus the work function has been calculated without having to know the threshold frequency.
How is UPS work function calculated?
calculate WF by simply subtract the binding energy of the secondary region from the total energy of the incident light：WF =hv − ESE，however others subtract by the width of the binding energy from onset of the secondary electrons up to the Fermi edge.
What is organic solar cell?
An organic solar cell uses carbon-based materials and organic electronics instead of silicon as a semiconductor to produce electricity from the sun. Organic cells are also sometimes referred to as “plastic solar cells” or “polymer solar cells”.
What are organic solar cells used for?
An organic solar cell (OSC) or plastic solar cell is a type of photovoltaic that uses organic electronics, a branch of electronics that deals with conductive organic polymers or small organic molecules, for light absorption and charge transport to produce electricity from sunlight by the photovoltaic effect.
How is solar cell efficiency calculated?
To calculate the efficiency of the solar cell, it is necessary to know how much power the solar cell receives and how much power it produces. To calculate the efficiency of the solar cell, you must use: Efficiency = Pout / Pin. To calculate Pin (the input power) use the area of the solar cell.