Anchoring porphyrin self-assembled dye sensitized solar cells: synthesis and photovoltaic application

Yu Wu, Qiu Min Wang, Yu Yu Jiang, Cong Ming Xu, Si Ci Chen, Cheng Gang Ci, Jia Cheng Liu, Ren Zhi Li

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Anchoring porphyrin, ZnPAc, featuring cyanoacetic acid group has been synthesized for application in a dye-sensitized solar cell. Capping layer dyes zinc meso-tetraphenyl porphyrin (ZnTPP) with anchoring porphyrin ZnPAc through axial coordination bonds of Zn-to-ligand self-assembles solar cell devices. With the introduction of cyanoacetic acid anchor, the higher electrons are effectively injected into the TiO2 semiconductor surface. Thus, the ZnTPP-ZnPAc-based device has more short-circuit current (JSC) compared with our previously reported ZnTPP-ZnPA-based solar cell. The ZnPA and ZnPAc porphyrin anchoring dyes maintain a broad absorption spectrum and also improve electron injection and lower charge recombination compared to our previous reports on organic molecule anchored dye W3. Hence, the ZnTPP-ZnPAc self-assembled dye has higher power conversion efficiency. The assembled modes were also verified by transmission electron microscopy (TEM). To understand ZnTPP-ZnPAc for photovoltaic performance trends, we have carried out charge extraction, transient photovoltage decay and electrochemical impedance spectroscopy analysis.

Original languageEnglish
Pages (from-to)1131-1144
Number of pages14
JournalJournal of Coordination Chemistry
Volume76
Issue number9-10
DOIs
StatePublished - 2023

Keywords

  • Anchoring porphyrin
  • Axial coordination
  • Dye-sensitized solar cells
  • Zinc porphyrin

Fingerprint

Dive into the research topics of 'Anchoring porphyrin self-assembled dye sensitized solar cells: synthesis and photovoltaic application'. Together they form a unique fingerprint.

Cite this