TY  - JOUR
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84875133348&doi=10.1016%2fj.snb.2013.02.042&partnerID=40&md5=734d7a7e8b2b8581bc637c81750a1ccf
A1  - Chatterjee, K.
A1  - Dhara, P.
A1  - Ganguly, S.
A1  - Kargupta, K.
A1  - Banerjee, D.
JF  - Sensors and Actuators, B: Chemical
VL  - 181
EP  - 550
Y1  - 2013///
SN  - 09254005
N1  - cited By 27
N2  - Polyaniline (PANI) doped with 5-sulfosalicylic acid (SSA) has been synthesized employing several techniques, viz. polymerization, Langmuir Blodgett (LB), spin-coating and electrodeposition. The influence of process variation on the structure, electrical conductivity and ammonia vapour sensing performance (response percentage and response time) has been investigated. The synthesized samples have been structurally characterized by transmission electron microscopy (TEM), UV-vis, and FTIR spectra. TEM analysis reveals formation of nanorods and nanospheres of PANI. Nanorods are formed for the samples synthesized by electrodeposition and LB technique whereas for the samples synthesized by polymerization and spin-coating, nanospheres are formed. Among these four different synthesized samples, the one deposited by LB technique exhibits highest conductivity due to the ordered molecular architecture. An exploration of variation of conductivity of these samples after exposure to ammonia reveals that the polymerized sample having highest surface to volume ratio exhibits fastest response (least response time), while the spin coated sample show sluggish response. The importance lies in the mapping between response percentages of different samples with the surface to volume ratio of the various nanostructures. © 2013 Elsevier B.V.
KW  - 5-sulfosalicylic acid; Ammonia sensing; Electrical conductivity; Molecular architecture; Polyanilines (PAni); Response percentage; Surface-to-volume ratio; Transmission electron microscopy (TEM)
KW  -  Ammonia; Coatings; Electric conductivity; Electrodeposition; Fourier transform infrared spectroscopy; Nanorods; Nanospheres; Nanostructures; Polymerization; Transmission electron microscopy
KW  -  Polyaniline
ID  - scholars3701
TI  - Morphology dependent ammonia sensing with 5-sulfosalicylic acid doped nanostructured polyaniline synthesized by several routes
SP  - 544
AV  - none
ER  -