TY - JOUR
T1 - Synthesis of uniformly dispersed large area polymer/AgNPs thin film at air−liquid interface for electronic application
AU - Mishra, Richa
AU - Pandey, Rajiv Kumar
AU - Jana, Subhajit
AU - Upadhyay, Chandan
AU - Prakash, Rajiv
N1 - Funding Information:
The authors are thankful to SERB for support under IMPRINT and SPARC. Authors are also thankful to the Central Instrument Facility (CIF) centre, IIT (BHU) for providing TEM, AFM, KPFM, and PCM facilities. We would also like to acknowledge Mr. Hitesh Mamgain, Application Scientist, WITec GmbH (Bangalore, India) for helping us in obtaining Raman spectra and Mr.Anirudh Anirudh Pawar, Anton Paar India Pvt. Ltd. for GI-WAXS pattern. Richa Mishra and Subhajit Jana are thankful to DST-INSPIRE division for providing fellowship.
Funding Information:
The authors are thankful to SERB for support under IMPRINT and SPARC. Authors are also thankful to the Central Instrument Facility (CIF) centre, IIT (BHU) for providing TEM, AFM, KPFM, and PCM facilities. We would also like to acknowledge Mr. Hitesh Mamgain, Application Scientist, WITec GmbH (Bangalore, India) for helping us in obtaining Raman spectra and Mr.Anirudh Anirudh Pawar, Anton Paar India Pvt. Ltd. for GI-WAXS pattern. Richa Mishra and Subhajit Jana are thankful to DST-INSPIRE division for providing fellowship.
Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/9
Y1 - 2020/9
N2 - Owing to self-organizing properties of conjugated polymers (CPs) into ordered macroscopic structures, their π−π stacking (ordering) and thus electrical property are greatly influenced by intermolecular interactions when incorporated with another nanomaterial. Here, a molecular engineering technique is employed to enhance the ordering of polymer named “polyindole (PIn)” at air−water interface in the presence of silver nanoparticles (AgNPs). Comparative microscopic, macroscopic surface analysis and spectral analysis of Ag−PIn nanohybridand pristine PIn Langmuir films reveal a better molecular packing (π−π stacking) and oriented film structure for the former due to silver incorporation. Enhancement in ordering is attributed to the cooperative effort of the self-assembling property of AgNP and the Langmuir technique. Surface-enhanced Raman Spectroscopy (SERS) and XPS clearly support the formation of polymer−metal nanoparticle coupled unified system, via chemi-adsorption thus attributing to enhancement observed in intrinsic mobility (charge transport properties) of nanohybrid film. This work demonstrating the Langmuir and nanoparticle-induced ordering in polymer backbone will motivate the utilization of this technique for ordering and electronic property enhancement of other nanomaterial−polymer systems.
AB - Owing to self-organizing properties of conjugated polymers (CPs) into ordered macroscopic structures, their π−π stacking (ordering) and thus electrical property are greatly influenced by intermolecular interactions when incorporated with another nanomaterial. Here, a molecular engineering technique is employed to enhance the ordering of polymer named “polyindole (PIn)” at air−water interface in the presence of silver nanoparticles (AgNPs). Comparative microscopic, macroscopic surface analysis and spectral analysis of Ag−PIn nanohybridand pristine PIn Langmuir films reveal a better molecular packing (π−π stacking) and oriented film structure for the former due to silver incorporation. Enhancement in ordering is attributed to the cooperative effort of the self-assembling property of AgNP and the Langmuir technique. Surface-enhanced Raman Spectroscopy (SERS) and XPS clearly support the formation of polymer−metal nanoparticle coupled unified system, via chemi-adsorption thus attributing to enhancement observed in intrinsic mobility (charge transport properties) of nanohybrid film. This work demonstrating the Langmuir and nanoparticle-induced ordering in polymer backbone will motivate the utilization of this technique for ordering and electronic property enhancement of other nanomaterial−polymer systems.
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U2 - 10.1016/j.mtcomm.2020.101191
DO - 10.1016/j.mtcomm.2020.101191
M3 - Article
AN - SCOPUS:85085170059
VL - 24
JO - Materials Today Communications
JF - Materials Today Communications
SN - 2352-4928
M1 - 101191
ER -