Towards optically responsive smart materials: electronic interactions between polymeric semiconductor and photochromic molecule
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Electronic interactions between π-conjugated poly[2-methoxy-5-(3′,7′-dimethyloctyloxy)-1,4-phenylenevinylene] (MDMO-PPV) and photochromic 6-nitro-1′,3′,3′-trimethylspiro[2H-1-benzopyran-2,2′-indoline] (SP) were studied using the optical spectroscopy. The observed fluorescence quenching of MDMO-PPV by the open merocyanine form of the SP was explained as a photoinduced charge transfer. This opens the possibility to reversibly switch between low and high photoconductive states which can be used for the construction of electro-optical bi-stable devices or sensors.
KeywordsPPV MDMO-PPV Spiropyran Resonance energy transfer Fluorescence quenching Photoinduced electron transfer Molecular switch Organic electronics
This work was supported by the Czech Science Foundation Grant no. 17-21105S. Research infrastructure was supported by Project no. REG LO1211 from the National Programme for Sustainability I (MEYS CR).
- Al-Ibrahim M, Konkin A, Roth H, Egbe DAM, Klemm E, Zhokhavets U, Gobsch G, Sensfuss S (2005) Phenylene-ethynylene/phenylene-vinylene hybrid polymers: optical and electrochemical characterization, comparison with poly[2-methoxy-5-(3′,7′-dimethyloctyloxy)-1,4-phenylene vinylene] and application in flexible polymer cells. Thin Solid Films 474:201–210. https://doi.org/10.1016/j.tsf.2004.08.188 CrossRefGoogle Scholar
- Dürr H, Bouas-Laurent H (2003) Photochromism—molecules and systems. Elsevier, AmsterdamGoogle Scholar
- Türro NJ (1978) Modern molecular photochemistry. The Benjamin/Cummings Publishing Company, AmsterdamGoogle Scholar
- Weiter M, Vala M, Salyk O, Zmeškal O, Nespurek S, Sworakowski J (2005) Reversible formation of charge carrier traps in poly(phenylenevinylene) derivative due to the phototransformation of a photochromic additive. Mol Cryst Liquid Cryst 430:227–233. https://doi.org/10.1080/15421400590946433 CrossRefGoogle Scholar
- Zheng M, Bai F, Li F, Li Y, Zhu D (1998) The interaction between conjugated polymer and fullerenes. J Appl Polym Sci 70:599–603. https://doi.org/10.1002/(SICI)1097-4628(19981017)70:3<599:AID-APP22>3.0.CO;2-VGoogle Scholar