Salicylic acid-based organic dyes acting as the photosensitizer for solar cells

• Main Authors: Hong S, Park JH, Han AR, Ko KW, Eom JH, Namgoong SK, Lo, Alvie Sin Loi, Keith C Gordon, Yoon S, Han CH
• Format: Article
• Language: English
• Published: American Scientific Publishers 2016
• Subjects: QC Physics
• Online Access: https://eprints.ums.edu.my/id/eprint/19007/1/Salicylic%20acid%20based%20organic%20dyes%20acting%20as%20the%20photosensitizer%20for%20solar%20cells.pdf; https://eprints.ums.edu.my/id/eprint/19007/; https://doi.org/10.1166/jnn.2016.12218
• Institution: Universiti Malaysia Sabah

A D-π-A metal-free organic dye, featuring salicylic acid as a novel acceptor/anchoring unit, has been designed, synthesized and applied to dye-sensitized solar cell. The detailed photophysical, electrochemical, photovoltaic and sensitizing properties of the organic dye were investigated, in addition to the computational studies of the dye and dye-(TiO2)6 system. A solar cell device using this new organic dye as a sensitizer produced a solar to electric power conversion efficiency (PCE) of 3.49% (J(sc) = 6.69 mAcm-2, V(oc) = 0.74 V and ff = 0.70) under 100 mWcm(-2) simulated AM 1.5 G solar irradiation, demonstrating that the salicylic acid-based organic dye is a suitable alternative to currently used organometallic dyes