Amendment in sensing response of Single Walled Carbon nanotube (SWCNT) towards ammonia gas with copper phthalocyanine functionalization. (2020)

• Record Type: Journal Article
• Authors: Ridhi, R.; Neeru, ; Gautam, Seema; Saini, G.S.S.; Tripathi, S.K.; Rawat, J.S.; Jha, Pika
• Is Part Of: Materials today. Volume 28:Part 3(2020)
• Page Start: 1759
• Page End: 1763
• Publication Date: 2020
• Subjects: Carbon nanotubes -- Copper phthalocyanine -- Ammonia -- Resistance -- Charge carriers; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.05.169
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: The sensing of composite of two p-type materials; Single Walled Carbon nanotube (SWCNT) and Copper Phthalocyanine (CuPc) towards ammonia gas is studied. Maximum increase in response of SWCNT after CuPc functionalization has been found to be ≈ 56% with 83% increase in saturation responses. The average crystallite size corresponding to characteristic CuPc has been decreased with SWCNT doping by 44% with negligible shift in its characteristic peak corresponding to β phase. The successive intercalation of CuPc and strong π-π stacking interaction with SWCNT has been confirmed in structural, surface and spectroscopic results of SWCNT doped CuPc.