Two-in-one : Cathode modification and improved solar cell blend stability through addition of modified fullerenes
George, Zandra, 1985 (författare)
Chalmers, Dept Chem & Chem Engn, SE-41296 Gothenburg, Sweden.,Chalmers tekniska högskola,Chalmers University of Technology
Xia, Yuxin (författare)
Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska fakulteten,Linkoping Univ, IFM, Biomol & Organ Elect, SE-58183 Linkoping, Sweden.;Linkoping Univ, Ctr Organ Elect, SE-58183 Linkoping, Sweden.
Sharma, Anirudh (författare)
Univ S Australia, Future Ind Inst, Mawson Lakes, SA 5095292, Australia.,University of South Australia,University of S Australia, Australia
Karlstads universitet,Institutionen för ingenjörsvetenskap och fysik (from 2013),Karlstad University,Karlstad University, Sweden
Andersson, Gunther (författare)
Flinders Univ S Australia, Flinders Ctr NanoScale Sci & Technol, Sturt Rd,Bedford Pk, Adelaide, SA 5042, Australia.,Flinders University of South Australia,Flinders University of S Australia, Australia
Inganäs, Olle (författare)
Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten,Linkoping Univ, IFM, Biomol & Organ Elect, SE-58183 Linkoping, Sweden.;Linkoping Univ, Ctr Organ Elect, SE-58183 Linkoping, Sweden.
Moons, Ellen (författare)
Karlstads universitet,Institutionen för ingenjörsvetenskap och fysik (from 2013),Karlstad University,Karlstad University, Sweden
Müller, Christian, 1980 (författare)
Chalmers, Dept Chem & Chem Engn, SE-41296 Gothenburg, Sweden.,Chalmers tekniska högskola,Chalmers University of Technology
Andersson, Mats, 1966 (författare)
Chalmers, Dept Chem & Chem Engn, SE-41296 Gothenburg, Sweden.;Univ S Australia, Future Ind Inst, Mawson Lakes, SA 5095292, Australia.,Chalmers tekniska högskola,Chalmers University of Technology,Chalmers, Sweden; University of S Australia, Australia
The synthesis of dual purpose modified fullerenes with pyridine-as well as amine-functional groups is reported. Addition of these fullerenes to a polymer : fullerene bulk-heterojunction blend based on a thiophene-quinoxaline donor polymer is found to modify the active layer/cathode interface of inverted solar cells (glass/ITO/active layer/MoO3/Al). In particular the open-circuit voltage of devices is increased from 0.1 V to about 0.7 V, which results in a drastic rise in photovoltaic performance with a power conversion efficiency of up to 3%. At the same time, presence of the functionalised fullerene additives prevents the detrimental formation of micrometre-sized fullerene crystals upon annealing at 140 degrees C. As a result, the device performance is retained, which promises significantly increased thermal stability of the bulk-heterojunction blend nanostructure.
Ämnesord
TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Polymerteknologi (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Polymer Technologies (hsv//eng)
NATURVETENSKAP -- Fysik (hsv//swe)
NATURAL SCIENCES -- Physical Sciences (hsv//eng)
NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)