Abstract
We investigated the role of a functional solid additive, 2,3-dihydroxypyridine (DHP), in influencing the optoelectronic, morphological, structural and photovoltaic properties of bulk-heterojunction-based polymer solar cells (BHJ PSCs) fabricated using poly(3-hexylthiophene): indene-C60 bisadduct (P3HT:IC60BA) photoactive medium. A dramatic increase in the power conversion efficiency (~20%) was witnessed for the BHJ PSCs treated with DHP compared to the pristine devices. A plausible explanation describing the alignment of pyridine moieties of DHP with the indene side groups of IC60BA is presented with a view to improving the performance of the BHJ PSCs via improved crystalline order and hydrophobicity changes.
Original language | English (US) |
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Article number | 121 |
Journal | Polymers |
Volume | 10 |
Issue number | 2 |
DOIs | |
State | Published - Jan 26 2018 |
Externally published | Yes |
Keywords
- Additive
- Bulk-heterojunction
- Morphology
- Polymer solar cells
- Ternary blend
ASJC Scopus subject areas
- General Chemistry
- Polymers and Plastics