An N-ethylated barbituric acid end-capped bithiophene as an electron-acceptor material in fullerene-free organic photovoltaics. Issue 28 (11th March 2015) - Sullivan, Paul
Abstract : An N -ethyl barbituric acid bithiophene derivative is demonstrated as an n-type acceptor material for organic photovoltaics, approaching an efficiency of 2.6% and open-circuit voltage of 1.4 V. Abstract : A new evaporable electron acceptor material for organic photovoltaics based on N -ethyl barbituric acid bithiophene (EBB) has been demonstrated. Bilayer devices fabricated with this non-fullerene acceptor and boron subphthalocyanine chloride (SubPc) donor produce power conversion efficiencies as high as 2.6% with an extremely large open-circuit voltage approaching 1.4 V.