Researchers develop inkjet printable solar panels

Researchers develop inkjet printable solar panels
Researchers at the King Abdullah University of Science and Technology have developed solar panels that are thin enough to be printed with inkjet, light enough to rest on a soap bubble.

Conventional ‘ultrathin’ organic solar cells are typically made by spin-coating or thermal evaporation, with limits on scalability and device geometry. 

The team applied inkjet printing, formulating functional inks for each layer of the solar cell architecture. 

A transparent, flexible, conductive polymer, PEDOT:PSS or poly (3,4-ethylenedioxythiophene) polystyrene sulfonate, with the device able to be sealed within a waterproof parylene coating. 

The solar cells were printed onto glass to test performance, achieving a power conversion efficiency (PCE) of 4.73%, beating the record of 4.1% for a fully printed cell. 
The team also demonstrated that a cell could be printed onto an ultrathin flexible substrate, reaching a PCE of 3.6%. 

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