Imaging flow distribution through nanoporous polymer films using bright-field nanoscopy

Suran, Swathi and Varma, Manoj (2019) Imaging flow distribution through nanoporous polymer films using bright-field nanoscopy. In: JOURNAL OF APPLIED PHYSICS, 125 (16).

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Abstract

Bright-field nanoscopy (BFN), an optical visualization technique using standard diffraction-limited microscopy, has been used in the past to visualize nanoscale objects such as grain boundaries in single layer graphene and water transport across nanomembranes. Here, we show how BFN can be used to visualize and gather information about water transport networks in porous polymer membranes. We were able to visualize a sub-100 nm network of pores in a polyelectrolyte multilayer using this technique. The extracted pore diameter distribution fitted well to an exponential distribution. Further, the time evolution of pore diameter displayed two distinct regimes consistent with expectations. Published under license by AIP Publishing.

Item Type:	Journal Article
Publication:	JOURNAL OF APPLIED PHYSICS
Publisher:	AMER INST PHYSICS
Additional Information:	Copyright of this article belongs to AMER INST PHYSICS
Keywords:	SIMULATION
Department/Centre:	Division of Interdisciplinary Sciences > Robert Bosch Centre for Cyber Physical Systems Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	24 May 2019 11:09
Last Modified:	24 May 2019 11:09
URI:	http://eprints.iisc.ac.in/id/eprint/62734

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