Journal
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
Volume 398, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2020.112512
Keywords
Organic sensitizer; Anchor group; Dye-sensitized solar cells; DFT/TDDFT
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Funding
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry & Energy(MOTIE) of the Republic of Korea [20173010012810]
- Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) from the Ministry of Trade, Industry & Energy, Republic of Korea [20174030201760]
- National Research Foundation - Korean Government [2018R1A2A2A05019776]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20173010012810] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2018R1A2A2A05019776] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Two hydroxamic acid anchoring based dyes, PTZ-HA and BTPA-HA were designed, synthesized and their DSSC performances were compared with that of the corresponding cyanoacetic acid anchoring group dyes (PTZ-CA and BTPA-CA) for better understanding of their enhanced DSSC performance. The hydroxamic anchored dyes, PTZ-HA and BTPA-HA have shown enhanced efficiency of 4.06 and 6.22 % when compared to cyanaoacetic acid dyes, PTZ-CA and BTPA-CA showing 2.99 and 5.65 % efficiencies, respectively. This particular enhancement in the efficiencies could be attributed to the stable bidentate keto anchoring mode of the hydroxamic acid group, which led to the efficient electron injection. The detailed optical, electrochemical and photovoltaic properties were analyzed and complimented with the density functional theory (DFT) studies.
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