TY - JOUR
T1 - Flexible humidity and temperature sensor based on cellulose-polypyrrole nanocomposite
AU - Mahadeva, Suresha K.
AU - Yun, Sungryul
AU - Kim, Jaehwan
PY - 2011/2
Y1 - 2011/2
N2 - Recently, cellulose has been re-discovered as a smart material that can be used as sensor and actuator materials, which is termed as electro-active paper. In this work we demonstrate the application of cellulose as a flexible humidity and temperature sensor. Nanoscaled polypyrrole (PPy) as a humidity and temperature sensitive layer was introduced onto cellulose surface via in situ polymerization technique without disrupting cellulose structure. Atomic force microscopy, UV-visible spectroscopy, transmission electron microscopy and secondary ion mass spectroscopic analysis revealed the successful deposition of polypyrrole nanolayer onto cellulose surface, which is referred as a cellulose-PPy nanocomposite. Effect of polymerization time on sensing behavior of cellulose-PPy nanocomposite was investigated, experimental results revealed that cellulose-PPy nanocomposite with 16 h polymerization time suitable for suitable for humidity and temperature sensor.
AB - Recently, cellulose has been re-discovered as a smart material that can be used as sensor and actuator materials, which is termed as electro-active paper. In this work we demonstrate the application of cellulose as a flexible humidity and temperature sensor. Nanoscaled polypyrrole (PPy) as a humidity and temperature sensitive layer was introduced onto cellulose surface via in situ polymerization technique without disrupting cellulose structure. Atomic force microscopy, UV-visible spectroscopy, transmission electron microscopy and secondary ion mass spectroscopic analysis revealed the successful deposition of polypyrrole nanolayer onto cellulose surface, which is referred as a cellulose-PPy nanocomposite. Effect of polymerization time on sensing behavior of cellulose-PPy nanocomposite was investigated, experimental results revealed that cellulose-PPy nanocomposite with 16 h polymerization time suitable for suitable for humidity and temperature sensor.
KW - Cellulose
KW - Humidity
KW - Polymerization-induced adsorption
KW - Polypyrrole
KW - Temperature
UR - http://www.scopus.com/inward/record.url?scp=79951510813&partnerID=8YFLogxK
U2 - 10.1016/j.sna.2010.10.018
DO - 10.1016/j.sna.2010.10.018
M3 - Article
AN - SCOPUS:79951510813
SN - 0924-4247
VL - 165
SP - 194
EP - 199
JO - Sensors and Actuators A: Physical
JF - Sensors and Actuators A: Physical
IS - 2
ER -