A novel free base phthalocyanine, ImHPc (C140H116N16) was developed by incorporating the triphenyl imidazole moiety at its peripheral positions. A detailed analysis of the UV-visible absorption, emission and transient absorption spectra were studied. The Emission studies reveal the fluorescence peak 695 nm to 705 nm and the time-resolved fluorescence data exposed radiative lifetimes of typically few ns. Transient absorption studies (TAS) reveal two singlet lifetimes in picoseconds while single triplet lifetime in microseconds. This makes our molecule ideal for applications in photonics like solar cells and photomedicine like fluorescence imagining, Photodynamic therapy (PDT), etc. © 2019 SPIE. All rights reserved.

Sai Santosh Kumar Raavi

Department of Physics

S. Bhattacharya

S. Paul

Sk.S. Hossain

G. Lingamallu

V.R. Soma

A. Samanta

Indian Institute of Technology Hyderabad (IITH) is a premier institute of science and technology established in 2008. IITH has been consistently ranked in the&nbsp;<a href="https://iith.ac.in/reports/" rel="noopener noreferrer">top 10 institutes</a>&nbsp;in India for Engineering&nbsp;<a href="https://www.nirfindia.org/2021/EngineeringRanking.html" rel="noopener noreferrer" target="_blank">according to NIRF</a>&nbsp;making it one of the most coveted schools for science and technology in the country.

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IIT Hyderabad

Proceedings of SPIE - The International Society for Optical Engineering

Femtosecond to Microsecond Photophysical Studies of a Novel Free Base Phthalocyanine.

Journal	Data powered by TypesetProceedings of SPIE - The International Society for Optical Engineering
Publisher	Data powered by TypesetSPIE
ISSN	0277786X