[20p-PA2-1~35] 12.3 Functional Materials and Novel Devices

▲ [20p-PA2-17] Synthesis and photophysical characterization of far-red sensitive squaraine dyes bearing different functional groups for anchoring on mesoporous TiO₂

〇Ajendra Kumar Vats¹, Anusha Pradhan¹, Shuzi Hayase¹, Shyam S. Pandey¹ (1.LSSE, Kyutech)

Keywords:NIR Dyes, Anchoring group, DSSC

Sensitizing dye molecules play a pivotal role in the functioning and controlling the photon harvesting behavior in dye-sensitized solar cells (DSSCs). Need of efficient photon harvesting beyond the visible wavelength region is inevitable in order to enhance the photoconversion efficiency (PCE) of DSSCs, which are currently in the range of 12-14 %. This work focuses on the synthesis and photophysical characterizations of far-red sensitive unsymmetrical squaraine dyes bearing different anchoring groups. Man aim of the work is to investigate influence of nature of anchoring groups on the photosensitization of mesoporous TiO₂, which is one of the most commonly used wide band gap semiconductor.