Instytut Podstawowych Problemów Techniki
Polskiej Akademii Nauk

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Khene Samson


Ostatnie publikacje
1.  Nwaji N., David O. O., John M., Marcel L., Samson K., Jonathan B., Tebello N., Improved nonlinear optical behaviour of ball type indium (III) phthalocyanine linked to glutathione capped nanoparticles, Dyes and Pigments, ISSN: 1873-3743, DOI: 10.1016/j.dyepig.2017.01.066, Vol.140, pp.417-430, 2017

Streszczenie:
The synthesis of ball–type indium phthalocyanine (complex 4) and its covalent attachment to glutathione (GSH–) capped (Ag, Au, CdTeSe, CdTeSe/ZnO) nanoparticles are reported in this work. Furthermore, their photophysical and nonlinear optical behaviour were investigated. We observed a decrease in the fluorescence quantum yield with corresponding increase in the triplet quantum yield of the nanoconjugates in comparison to complex 4 alone. The reverse saturable absorption was found to be dependent on excited state absorption. The optical limiting threshold ranges from 0.40–0.78 (J/cm2). The nanoconjugate of the complex 4 with GSH–CdTeSe/ZnO (QD1) accounted for the most improved triplet state parameters and nonlinear optical behaviour in comparison to complex 4 and the other nanoconjugates studied in this work.

Afiliacje autorów:
Nwaji N. - IPPT PAN
David O. O. - inna afiliacja
John M. - inna afiliacja
Marcel L. - inna afiliacja
Samson K. - inna afiliacja
Jonathan B. - inna afiliacja
Tebello N. - inna afiliacja

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