TY - JOUR
T1 - Determination of mechanical properties and actuation behaviors of polypyrrole-copper bimorph nanoactuators
AU - Sul, Onejae
AU - Jang, Seongjin
AU - Yang, Eui Hyeok
PY - 2011/9
Y1 - 2011/9
N2 - This paper reports on a polypyrrole (ppy) based bimorph nanoactuator. The nanoactuator consists of ppy nanowire and Cu thin film. To create a nanoactuator, a (10±5)-nm-thick Cu film was precisely deposited on one side of a (13.7±1.0)-μm-long and 270±20 nm diameter ppy nanowire. The bimorph was thermally actuated using the mismatch of the coefficients of thermal expansion (CTEs) between Cu and ppy. The CTE of ppy nanowire was obtained by measuring the deflection of the bimorph. The measured CTE of ppy was (12±1×10-6)/K, which was found to be much less than CTE of a typical polymer. Further, the amount of the force generated by the ppy/Cu bimorph was measured by lateral force microscopy (LFM). The measured force from the nanoactuator was approximately 1 nN at δT=100 K.
AB - This paper reports on a polypyrrole (ppy) based bimorph nanoactuator. The nanoactuator consists of ppy nanowire and Cu thin film. To create a nanoactuator, a (10±5)-nm-thick Cu film was precisely deposited on one side of a (13.7±1.0)-μm-long and 270±20 nm diameter ppy nanowire. The bimorph was thermally actuated using the mismatch of the coefficients of thermal expansion (CTEs) between Cu and ppy. The CTE of ppy nanowire was obtained by measuring the deflection of the bimorph. The measured CTE of ppy was (12±1×10-6)/K, which was found to be much less than CTE of a typical polymer. Further, the amount of the force generated by the ppy/Cu bimorph was measured by lateral force microscopy (LFM). The measured force from the nanoactuator was approximately 1 nN at δT=100 K.
KW - Coefficient of thermal expansion (CTE)
KW - lateral force microscopy (LFM)
KW - nanoactuator
KW - polypyrrole
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U2 - 10.1109/TNANO.2010.2090667
DO - 10.1109/TNANO.2010.2090667
M3 - Article
AN - SCOPUS:80052638929
SN - 1536-125X
VL - 10
SP - 985
EP - 990
JO - IEEE Transactions on Nanotechnology
JF - IEEE Transactions on Nanotechnology
IS - 5
M1 - 5618567
ER -