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更新时间:2026/10/14 9:22:10关注度:1317
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F8BT (PFBT), CAS number 210347-52⁻⁷, a widely used green emitting reference polymer for a variety of applications including as an emissive species in OLEDs [1], an approximately balanced p-type and n-type polymer for OFETs [2] and light emitting transistors [3] as well as being used a polymeric accepter for OPVs [1]. The deep lying HOMO and LUMO levels (5.9 / 3.3 eV) makes it air stable while the liquid-crystalline and beta phases make it widely used for basic research purposes.
| Full name | Poly(9,9-dioctylfluorene-alt-benzothiadiazole) |
| Synonyms | F8BT, PFBT |
| Chemical formula | (C35H42N2S)n |
| CAS number | 210347-52⁻⁷ |
| HOMO / LUMO | HOMO = -5.9 eV, LUMO = -3.3 eV [2] |
| Classification / Family | Polyfluorenes, Benzothiodiazoles, Organic semiconducting materials, Semiconducting polymers, OLED green emitter materials, OLED materials, Organic Photovoltaic materials, Polymer solar cells, OFET materials |
| Purity | > 99.9% |
| Appearance | Orange powder/flakes |

| Device structure | ITO/PEDOT:PSS/TFB/F8BT/F8imBT-Br*/Ca/Al [4] |
| Colour | |
| Max. EQE | 5.1% |
| Max. Current Efficiency | 17.9 cd/A |
| Max. Power Efficiency | 16.6 lm W−1 |
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