TY - JOUR
T1 - Correlating charge fluence with nanoparticle formation during in situ plasma synthesis of nanocomposite films
AU - Ghosh, Souvik
AU - Boris, David R.
AU - Hernández, Sandra C.
AU - Zorman, Christian A.
AU - Walton, Scott G.
AU - Sankaran, R. Mohan
N1 - Publisher Copyright:
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2017/12
Y1 - 2017/12
N2 - Plasmas enable the fabrication of nanocomposites via in situ reduction of metal precursors dispersed in polymer films. The mechanism for reduction has not yet been revealed and it is not known how plasma parameters affect nanoparticle formation. Here, we present a systematic study using a low-pressure, pulsed electron beam generated argon plasma to treat silver cation-containing polyacrylic acid films. The background pressure, treatment time, period, and pulse width are varied to influence charged species generation. We show a direct correlation between nanoparticle density, as assessed by ultraviolet-visible absorbance analysis, and the charge fluence. Although the experiments could not separate the specific role of ions and electrons, our results demonstrate the importance of charged species to nanoparticle formation.
AB - Plasmas enable the fabrication of nanocomposites via in situ reduction of metal precursors dispersed in polymer films. The mechanism for reduction has not yet been revealed and it is not known how plasma parameters affect nanoparticle formation. Here, we present a systematic study using a low-pressure, pulsed electron beam generated argon plasma to treat silver cation-containing polyacrylic acid films. The background pressure, treatment time, period, and pulse width are varied to influence charged species generation. We show a direct correlation between nanoparticle density, as assessed by ultraviolet-visible absorbance analysis, and the charge fluence. Although the experiments could not separate the specific role of ions and electrons, our results demonstrate the importance of charged species to nanoparticle formation.
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U2 - 10.1002/ppap.201700079
DO - 10.1002/ppap.201700079
M3 - Article
AN - SCOPUS:85037721557
SN - 1612-8850
VL - 14
JO - Plasma Processes and Polymers
JF - Plasma Processes and Polymers
IS - 12
M1 - 1700079
ER -