Organic materials have gained great interest because they are low cost, flexible, lightweight, and easy manufactured of large-area.
In a recent study, researchers develop new solar photovoltaic (PV) using organic materials. The new solar PV manufacturing method avoids negative effects on environment. The finding is published in Chemistry of Materials.
Researchers from North Carolina State University and Chinese Academy of Sciences conducted the study.
Currently, solar PVs are made with environmentally hazardous halogen solvents. They can seriously harm human health, and its use in open applications has been banned worldwide.
In the study, researchers tried to remove the halogenated solvents and make solar PV more environmentally attractive.
They used x-ray scattering method to find that a food additive (o-methylanisole) could achieve similar performance to that achieved by binary halogenated solvents and hence yield comparable PV performance.
Furthermore, researchers found the potential of the food additive as processing solvent in several cases of organic solar PV in air.
Remarkably, this single nonhazardous solvent yields ∼8.4% and ∼5.2% efficiency in solar PV.
Researchers suggest that this simple nonhazardous method to make solar PV will be applicable in the large areas and industrial manufacturing of high-efficiency solar PV.
Citation: Ye L, et al. (2016). High Performance Organic Solar Cells Processed by Blade Coating in Air from a Benign Food Additive Solution. Chemistry of Materials, published online. DOI: 10.1021/acs.chemmater.6b03083.
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