Dong, Yifan published the artcileOrientation dependent molecular electrostatics drives efficient charge generation in homojunction organic solar cells, COA of Formula: C23H20BN, the publication is Nature Communications, database is CAplus and MEDLINE.
Organic solar cells usually utilize a heterojunction between electron-donating (D) and electron-accepting (A) materials to split excitons into charges. However, the use of D-A blends intrinsically limits the photovoltage and introduces morphol. instability. Here, we demonstrate that polycrystalline films of chem. identical mols. offer a promising alternative and show that photoexcitation of α-sexithiophene (α-6T) films results in efficient charge generation. This leads to α-6T based homojunction organic solar cells with an external quantum efficiency reaching up to 44% and an open-circuit voltage of 1.61 V. Morphol., photoemission, and modeling studies show that boundaries between α-6T crystalline domains with different orientations generate an electrostatic landscape with an interfacial energy offset of 0.4 eV, which promotes the formation of hybridized exciton/charge-transfer states at the interface, dissociating efficiently into free charges. Our findings open new avenues for organic solar cell design where material energetics are tuned through mol. electrostatic engineering and mesoscale structural control.
Nature Communications published new progress about 971-66-4. 971-66-4 belongs to pyridine-derivatives, auxiliary class Pyridine,Benzene, name is Triphenyl(pyridin-1-ium-1-yl)borate, and the molecular formula is C23H20BN, COA of Formula: C23H20BN.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem