Emphasizing the Operational Role of a Novel Graphene-Based Ink into High Performance Ternary Organic Solar Cells
| Autor: | Katerina Anagnostou, George Kenanakis, Dimitrios M. Kosmidis, George Viskadouros, Minas M. Stylianakis, N. Kornilios, Christos Polyzoidis, Emmanuel Kymakis, Miron Krassas, Konstantinos Petridis |
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| Rok vydání: | 2020 |
| Předmět: |
Fullerene
Materials science Organic solar cell General Chemical Engineering cascade effect Context (language use) 02 engineering and technology ternary organic solar cells 010402 general chemistry 01 natural sciences Ternary organic solar cells Article law.invention lcsh:Chemistry graphene ink Charge transfer Photoactive layer law General Materials Science Functionalization Air-processed HOMO/LUMO air-processed nanotechnology Graphene charge transfer Graphene ink 021001 nanoscience & nanotechnology Acceptor 0104 chemical sciences Crystallography lcsh:QD1-999 Cascade effect functionalization 0210 nano-technology Ternary operation |
| Zdroj: | Nanomaterials Volume 10 Issue 1 Nanomaterials, Vol 10, Iss 1, p 89 (2020) |
| ISSN: | 2079-4991 |
| DOI: | 10.3390/nano10010089 |
| Popis: | A novel solution-processed, graphene-based material was synthesized by treating graphene oxide (GO) with 2,5,7-trinitro-9-oxo-fluorenone-4-carboxylic acid (TNF-COOH) moieties, via simple synthetic routes. The yielded molecule N-[(carbamoyl-GO)ethyl]-N&rsquo [(carbamoyl)-(2,5,7-trinitro-9-oxo-fluorene)] (GO-TNF) was thoroughly characterized and it was shown that it presents favorable highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels to function as a bridge component between the polymeric donor poly({4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b&prime ]dithiophene-2,6-diyl}{3-fluoro-2-[(2-ethylhexyl)carbonyl] thieno[3,4-b]thiophenediyl}) (PTB7) and the fullerene derivative acceptor [6,6]-phenyl-C71-butyric-acid-methylester (PC71BM). In this context, a GO-TNF based ink was prepared and directly incorporated within the binary photoactive layer, in different volume ratios (1%&ndash 3% ratio to the blend) for the effective realization of inverted ternary organic solar cells (OSCs) of the structure ITO/PFN/PTB7:GO-TNF:PC71BM/MoO3/Al. The addition of 2% v/v GO-TNF ink led to a champion power conversion efficiency (PCE) of 8.71% that was enhanced by ~13% as compared to the reference cell. |
| Databáze: | OpenAIRE |
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