Indolenine – dibenzotetraaza[14]annulene nickel complexes as sensitizers for DYE – sensitized solar cells / Abdul Qaiyum Ramle

Abdul Qaiyum , Ramle (2018) Indolenine – dibenzotetraaza[14]annulene nickel complexes as sensitizers for DYE – sensitized solar cells / Abdul Qaiyum Ramle. Masters thesis, University of Malaya.

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      Abstract

      A new series of macrocyclic nickel complexes having indolenine and dibenzotetraaza[14]annulene (DBTAA) moieties were synthesized and tested for their application as sensitizers in dye-sensitized solar cells (DSSCs). The structures are furnished with anchoring groups of ethyl ester (8a, 8b, and 8c) or carboxylic acid (9c) on the indolenine moiety and hexyloxy (8b) or neopentyloxy (8c, 9c) groups on the DBTAA moiety. The best performance was exhibited by dye 9c, which under constant AM 1.5G solar simulation (100 mW cm-2) using I-/I3- electrolyte gave a short-circuit current Jsc = 0.43 mA cm-2, an open-circuit voltage Voc = 0.41 V and a fill factor FF = 0.528, corresponding to an overall conversion efficiency of η = 0.093%. The dyes 8c and 9c were studied by electrochemical impedance spectroscopy (EIS) and incident-photon-to-current-conversion efficiency (IPCE). This is the first investigation of anti-aromatic (4n π-electrons) macrocyclic DBTAA derivatives as sensitizers for DSSCs applications.

      Item Type: Thesis (Masters)
      Additional Information: Dissertation (M.A.) – Faculty of Science, University of Malaya, 2018.
      Uncontrolled Keywords: Indolenine; DBTAA dyes; Anchoring groups; DSSCs; Macrocyclic nickel complexes
      Subjects: Q Science > Q Science (General)
      Q Science > QD Chemistry
      Divisions: Faculty of Science
      Depositing User: Mr Mohd Safri Tahir
      Date Deposited: 02 Jun 2020 07:06
      Last Modified: 02 Jun 2020 07:06
      URI: http://studentsrepo.um.edu.my/id/eprint/10256

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