Separation of metallic and semi conducting SWNTs by density gradient ultracentrifugation and formation of donor-acceptor hybrids using porphyrins
Das, Sushanta K.
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Das, Sushanta K (2010). Separation of metallic and semi conducting SWNTs by density gradient ultracentrifugation and formation of donor-acceptor hybrids using porphyrins. -- In Proceedings: 6th Annual Symposium: Graduate Research and Scholarly Projects. Wichita, KS: Wichita State University, p. 97-98
Occurrence of photo induced electron transfer in donor-acceptor self-assembled Zinc porphyrin (ZnP) and C₀M₀CAT single walled carbon nanotube (SWNT) nanohybrid has been demonstrated. C₀M₀CAT (6,5) and C₀M₀CAT(7,6) SWNT nanohybrid were constructed by solubilizing SWNT by ∏-∏ stacking of pyrene-NH3+ and pyrenebutyric acid. SWNT (6,5)/ SWNT(7,6).Pyr.COO—(TMPyP)M;M=H₂,Zn and SWNT(6,5)/(7,6).Pyr-NH3+- (TPPS)M; M=H2,Zn so formed were then studied using various techniques such UV/Vis-NIR,PL, TEM and nanosecond Transient Absorption techniques. The rates of charge separation, κCS andκCR were than studied for both the two nanotube samples.
Paper presented to the 6th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Hughes Metropolitan Complex, Wichita State University, April 23, 2010.
Research completed at the Department of Chemistry, College of Liberal Arts and Sciences