by A promising alternative to conventional inorganic solar cells. Organic solar cells (OSC) have many advantages. Including adjustable chemistry This allows scientists to tune their properties for maximum efficiency. Recently, researchers at Osaka University in Japan have made great progress in increasing electrical current.
In a study published in Angewandte Chemie International Edition, the team reports on a new organic semiconductor that exceeds current standards in terms of energy conversion efficiency. OSCs are attractive because of their light weight, flexibility and Scalable This makes it suitable for large-scale applications such as Agricultural Microbials energy.
OSC consists of two organic semiconductors: one for electron transport (acceptor) and another for hole transport (donor). When sunlight hits the OSC, an excitation substance is created by bound electron hole pairs. More sunlight energy can be converted to electricity by reducing the energy required to split the activator.
Organic solar cells (OSCs) are a promising alternative to traditional inorganic solar cells. They have many qualities that make them play an important role in a green future. One of them is adaptive chemistry. This allows scientists to precisely adjust or change the properties of chemical systems to achieve desired results. In a recent study published in Angewandte Chemie International Edition, researchers from Osaka University report on a new type of organic semiconductor that provides electrical conversion efficiency better than accepted standards.
OSCs are small and flexible and can be produced in large quantities at a relatively low cost. Therefore, it has good prospects for applications such as agricultural electricity. Large areas are used to grow crops at the same time. Block and convert energy from the sun into electricity.
Generally, an OSC has two organic semiconductors. One is for transporting charge carriers called electrons (acceptors) and the other is for transporting other charge carriers called holes (donors). In a semiconductor, when excitons, which are positive combinations of electrons and holes, are separated. are these carriers. Then current flows when it reaches a pair of electron holes. The stimulants are tightly bound together. But sunlight with enough energy can separate them and cause currents.
This is explained by reducing the amount of energy required to separate the actuator. which is energy captured with the catalyst This will make it easier to convert light into the desired current. Therefore, we focus on factors that contribute to binding energy. One of which is the distance between electrons and holes. If it increases, the binding energy decreases.
The researchers focused on the exciton binding energy, which is affected by the distance between the electron and hole. Increasing this distance reduces the binding energy. This makes it easier to create charge carriers. The team designed a molecule with lateral units that efficiently separate the parts of the molecule that hold electrons and holes. Synthetic molecules used as acceptors in many heterojunction OSCs are coupled to donor materials. This improves energy conversion efficiency compared to standard.
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1. Source: Coherent Market Insights, Public Source, Desk Research
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