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Title: Polyvinyl acetate-based polymer host for optical and far-infrared spectroscopy of individualized nanoparticles

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/5.0033611· OSTI ID:1768290

Preparation techniques for producing films of individualized solution-dispersed nanoparticles (NPs) for optical spectroscopy are frequently technically challenging and tailored for a specific NP system. In this work, we present a rapid, easy, and economical technique for producing polyvinyl acetate (PVAc)-based NP-polymer films on the order of 100’s of micrometers thick that exhibit high uniformity, low aggregation, excellent optical transparency, and low terahertz absorption. In addition, we find that these films are robust at cryogenic temperatures and have a high laser damage threshold of 0.3 TW cm–2, which make them suitable for pulsed laser measurements. We show that free-standing, flexible, PVAc films can incorporate both one-dimensional single-wall carbon nanotubes (SWCNTs) and zero-dimensional Au NPs. Using absorbance, Raman scattering, and photoluminescence excitation spectroscopy, we observe that SWCNT individualization is maintained, and minimized polymer strain imposed, when the nanotubes are transitioned from the solution to the polymer host. This PVAc-based polymer host presents researchers with a straightforward method for producing free-standing and flexible NP films with low aggregation.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division; National Institute of Standards and Technology (NIST); USDOE
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
1768290
Alternate ID(s):
OSTI ID: 1760046
Report Number(s):
NREL/JA-5K00-78397; MainId:32314; UUID:1437c3bf-f4a5-42d3-8c23-8a4432dd9060; MainAdminID:19717; TRN: US2207076
Journal Information:
Journal of Applied Physics, Vol. 129, Issue 3; ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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