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Highly Efficient and Reproducible Nonfullerene Solar Cells from Hydrocarbon Solvents
- Source :
- ACS Energy Letters. 2:1494-1500
- Publication Year :
- 2017
- Publisher :
- American Chemical Society (ACS), 2017.
-
Abstract
- With chlorinated solvents unlikely to be permitted for use in solution-processed organic solar cells in industry, there must be a focus on developing nonchlorinated solvent systems. Here we report high-efficiency devices utilizing a low-bandgap donor polymer (PffBT4T-2DT) and a nonfullerene acceptor (EH-IDTBR) from hydrocarbon solvents and without using additives. When mesitylene was used as the solvent, rather than chlorobenzene, an improved power conversion efficiency (11.1%) was achieved without the need for pre- or post-treatments. Despite altering the processing conditions to environmentally friendly solvents and room-temperature coating, grazing incident X-ray measurements confirmed that active layers processed from hydrocarbon solvents retained the robust nanomorphology obtained with hot-processed chlorinated solvents. The main advantages of hydrocarbon solvent-processed devices, besides the improved efficiencies, were the reproducibility and storage lifetime of devices. Mesitylene devices showed better reproducibility and shelf life up to 4000 h with PCE dropping by only 8% of its initial value.
- Subjects :
- Technology
02 engineering and technology
01 natural sciences
7. Clean energy
chemistry.chemical_compound
Electrochemistry
Materials Chemistry
Mesitylene
chemistry.chemical_classification
Chemistry, Physical
Chemistry
BANDGAP POLYMER
GAP
Polymer
021001 nanoscience & nanotechnology
Environmentally friendly
Solvent
Fuel Technology
Hydrocarbon
Chemistry (miscellaneous)
Physical Sciences
Engineering and Technology
Science & Technology - Other Topics
CAST
Fullerenes
0210 nano-technology
CONJUGATED POLYMERS
Solar cells
Energy & Fuels
Organic solar cell
Materials Science
Inorganic chemistry
FABRICATION
Energy Engineering and Power Technology
Materials Science, Multidisciplinary
010402 general chemistry
ACCEPTOR
Nanoscience & Nanotechnology
Science & Technology
ORGANIC PHOTOVOLTAICS
STABILITY
Renewable Energy, Sustainability and the Environment
Mechanical Engineering
Energy conversion efficiency
Materials Engineering
DEGRADATION
0104 chemical sciences
Chlorobenzene
Organic photovoltaics
MORPHOLOGY
Subjects
Details
- ISSN :
- 23808195
- Volume :
- 2
- Database :
- OpenAIRE
- Journal :
- ACS Energy Letters
- Accession number :
- edsair.doi.dedup.....0a3c7074913ecb0c950c2eda26398c44
- Full Text :
- https://doi.org/10.1021/acsenergylett.7b00390