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Photo-cross-linked perylene diimide derivative materials as efficient electron transporting layers in inverted polymer solar cells
- Source :
- Nanoscale. 9:17731-17736
- Publication Year :
- 2017
- Publisher :
- Royal Society of Chemistry (RSC), 2017.
-
Abstract
- We present an efficient and stable interfacial material based on a water-soluble perylene diimide derivative functionalized with ionic and methacrylate groups (abbreviated as PDIM), which can be stabilized by the photo-polymerization of diacrylate groups at both ends of the side chain in the PDIM. The characteristics of the photo-cross-linked PDIM films were examined using absorption spectra, cyclic voltammetry, work function, and surface morphology. The feasibility of the photo-cross-linked PDIM films as a novel electron transporting layer (ETL) in polymer solar cells (PSCs) was also investigated. The PTB7-Th:PC71BM-based PSC using the PDIM as the ETL achieved the excellent power conversion efficiency of 9.44% similar to the conventional polyethylenimine ethoxylated (PEIE) and better than ZnO. Furthermore, the PSC with the PDIM films exhibited a similar lifetime to that of the PEIE-based device. This approach suggests that the photo-cross-linked PDIM film could be regarded as a promising interfacial material for fabricating highly efficient PSCs.
- Subjects :
- Materials science
Energy conversion efficiency
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
Methacrylate
01 natural sciences
Polymer solar cell
0104 chemical sciences
chemistry.chemical_compound
chemistry
Chemical engineering
Diimide
Polymer chemistry
Side chain
General Materials Science
Work function
Cyclic voltammetry
0210 nano-technology
Perylene
Subjects
Details
- ISSN :
- 20403372 and 20403364
- Volume :
- 9
- Database :
- OpenAIRE
- Journal :
- Nanoscale
- Accession number :
- edsair.doi.dedup.....80b28f3ee009fe5a09b651476c55ed35