Photoswitching and Thermoresponsive Properties of Conjugated Multi‐chromophore Nanostructured Materials
作者： Santanu Bhattacharyya , Bikash Jana , Sumanta Sain , Monoj Kumar Barman , Swapan Kumar Pradhan
关键词: Photocatalysis 、 Nanostructure 、 Nano- 、 Amorphous solid 、 Materials science 、 Chromophore 、 Conjugated system 、 Nanotechnology 、 Organic electronics 、 Photoluminescence
摘要: Conjugated multi-chromophore organic nanostructured materials have recently emerged as a new class of functional for developing efficient light-harvesting, photosensitization, photocatalysis, and sensor devices because their unique photophysical photochemical properties. Here, we demonstrate the formation various nanostructures (fibers flakes) related to molecular arrangement (H-aggregation) quaterthiophene (QTH) molecules influence on XRD studies confirm that fiber structure consists >95% crystalline material, whereas flake is almost completely amorphous microstrain in flake-shaped QTH significantly higher than solution. The aggregation photoswitching thermoresponsive photoluminescence properties revealed. Time-resolved anisotropic further unveil relaxation dynamics restricted chromophore self-assembled nano/microstructured morphologies. Further investigations should pave way future development electronics, photovoltaics, light-harvesting systems based π-conjugated materials.
sci-hub.se 参考文章(56)
Masato Ikeda, Masayuki Takeuchi, Seiji Shinkai, Unusual emission properties of a triphenylene-based organogel system Chemical Communications. ,vol. 3, pp. 1354- 1355 ,(2003) , 10.1039/B302415F
David P. Ostrowski, Lauren A. Lytwak, Michelle L. Mejia, Keith J. Stevenson, Bradley J. Holliday, David A. Vanden Bout, The Effects of Aggregation on Electronic and Optical Properties of Oligothiophene Particles ACS Nano. ,vol. 6, pp. 5507- 5513 ,(2012) , 10.1021/NN301410J
Roland Fitzner, Chris Elschner, Matthias Weil, Christian Uhrich, Christian Körner, Moritz Riede, Karl Leo, Martin Pfeiffer, Egon Reinold, Elena Mena-Osteritz, Peter Bäuerle, Interrelation between crystal packing and small-molecule organic solar cell performance. Advanced Materials. ,vol. 24, pp. 675- 680 ,(2012) , 10.1002/ADMA.201104439
Lang Jiang, Yanyan Fu, Hongxiang Li, Wenping Hu, Single-Crystalline, Size, and Orientation Controllable Nanowires and Ultralong Microwires of Organic Semiconductor with Strong Photoswitching Property Journal of the American Chemical Society. ,vol. 130, pp. 3937- 3941 ,(2008) , 10.1021/JA077600J
Tapasi Sen, Santanu Bhattacharyya, Sadananda Mandal, Amitava Patra, None, Spectroscopic investigations on the H-type aggregation of coumarin 153 dye molecules: role of Au nanoparticles and γ-cyclodextrin Journal of Fluorescence. ,vol. 22, pp. 303- 310 ,(2012) , 10.1007/S10895-011-0961-9
H. M. Rietveld, Line profiles of neutron powder-diffraction peaks for structure refinement Acta Crystallographica. ,vol. 22, pp. 151- 152 ,(1967) , 10.1107/S0365110X67000234
Sanjio S. Zade, Natalia Zamoshchik, Michael Bendikov, From short conjugated oligomers to conjugated polymers. Lessons from studies on long conjugated oligomers. Accounts of Chemical Research. ,vol. 44, pp. 14- 24 ,(2011) , 10.1021/AR1000555
Sumanta Sain, Arik Kar, Amitava Patra, Swapan K Pradhan, None, Structural interpretation of SnO2 nanocrystals of different morphologies synthesized by microwave irradiation and hydrothermal methods CrystEngComm. ,vol. 16, pp. 1079- 1090 ,(2014) , 10.1039/C3CE42281J
Gregory D. Scholes, Garry Rumbles, Excitons in nanoscale systems Nature Materials. ,vol. 5, pp. 683- 696 ,(2006) , 10.1038/NMAT1710
Yasunari Tamai, Yuu Matsuura, Hideo Ohkita, Hiroaki Benten, Shinzaburo Ito, One-Dimensional Singlet Exciton Diffusion in Poly(3-hexylthiophene) Crystalline Domains. Journal of Physical Chemistry Letters. ,vol. 5, pp. 399- 403 ,(2014) , 10.1021/JZ402299A