Open AccessNovel ethanol soluble all-furan based copolymer for organic Photovoltaics
Author(s) -
Luwen Shang,
Shenghua He,
Yueyue Gao
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/781/4/042054
Subject(s) - materials science , organic solar cell , photovoltaics , energy conversion efficiency , furan , copolymer , ethanol , absorption (acoustics) , chemical engineering , layer (electronics) , photovoltaic system , optoelectronics , nanotechnology , organic chemistry , chemistry , composite material , polymer , ecology , engineering , biology
A new ethanol soluble all-furan based copolymer (PFF) was firstly designed and synthesized. PFF exhibits strong absorption in the range of 300-700 nm, and presents a highest occupied molecular orbital energy level of – 5.21 eV. The organic photovoltaics based on PFF: PCBO-12 display a low power conversion efficiency (PCE) of 0.49% when fabricated with ethanol. Interestingly, the PCE would be improved to 0.66% along with simultaneous enhancement of all photovoltaic parameters for devices by applying 1.5% p-anisaldehyde additive. The experiment analysis indicates the low PCE of the optimized device is ascribed to severe phase segregation and the large surface roughness of the active layer, which were verified by the TEM and AFM characterization.