The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 01, 2019

Filed:

Mar. 12, 2018
Applicant:

King Fahd University of Petroleum and Minerals, Dhahran, SA;

Inventors:

Umer Mehmood, Dhahran, SA;

Shakeel Ahmed, Dhahran, SA;

Ibnelwaleed A. Hussein, Dhahran, SA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 9/20 (2006.01); C07D 413/04 (2006.01); C07D 271/10 (2006.01); C07D 271/04 (2006.01); C07D 271/06 (2006.01); C07D 271/08 (2006.01); H01L 51/00 (2006.01); C09B 23/16 (2006.01); C09B 57/00 (2006.01); C09B 23/10 (2006.01);
U.S. Cl.
CPC ...
H01G 9/2059 (2013.01); C07D 271/04 (2013.01); C07D 271/06 (2013.01); C07D 271/08 (2013.01); C07D 271/10 (2013.01); C07D 413/04 (2013.01); C09B 23/105 (2013.01); C09B 23/164 (2013.01); C09B 57/00 (2013.01); H01L 51/007 (2013.01); H01L 51/0052 (2013.01); H01L 51/0068 (2013.01); H01G 9/2031 (2013.01); H01L 2051/0063 (2013.01); Y02E 10/542 (2013.01); Y02E 10/549 (2013.01);
Abstract

An oxadiazole dye for use as an organic photosensitizer. The oxadiazole dye comprising donor-π-spacer-acceptor type molecules in which at least one of an oxadiazole group acts as a π-conjugated bridge (spacer), a naphthyl unit acts as an electron-donating unit, a carboxyl group act as an electron acceptor group, and a cyano group acts as an anchor group. An optional thiophene group acts as part of the π-conjugated bridge (spacer). The dye for use as organic photosensitizers in a dye-sensitized solar cell. The dye for use in photodynamic therapies. Computational DFT and time dependent DFT (TD-DFT) modeling techniques showing Light Harvesting Efficiency (LHE), Free Energy for Electron Injection (ΔG), Excitation Energies, and Frontier Molecular Orbitals (FMOs) indicate that the series of dye comprise a more negative ΔGand a higher LHE value; resulting in a higher incident photon to current efficiency (IPCE).


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