Efficient co-sensitization of dye-sensitized solar cells by novel porphyrin/triazine dye and tertiary aryl-amine organic dye

Repeat protein scaffolds: ordering photo- and electroactive molecules in solution and solid state

“…It is well established that porphyrins have the ability to self-aggregate noncovalently to form H-aggregates (face-to-face) or J-aggregates (side-to-side), these states are characterized by a shift on the Soret absorption band towards the blue or red, respectively, compared to the monomeric absorption band. 40 – 45 Thus, the UV-vis spectra of both porphyrins as references and CTPR4-1 and CTPR4-2 conjugates were recorded in order to obtain more information about the conformation of the porphyrins in the conjugates. The absorption spectrum of porphyrin 1 in a PBS buffer solution presents an intense Soret band at 406 nm and four Q-bands in the region between 500 and 700 nm.…”

Stepwise co-sensitization of two metal-based sensitizers: probing their competitive adsorption for improving the photovoltaic performance of dye-sensitized solar cells

“…As a result, the J sc can be improved based on the trade-off between the dye-loading amounts and the reduced aggregation to some extent. [46][47][48][49][50][51][52] In this study, to further investigate the inuence of the loading procedure for the co-sensitizers on the performance of DSSCs, we selected two metal-based sensitizers (a rutheniumbased sensitizer and a porphyrin molecule denoted as N719 and LP-2, respectively) with well complementary absorption spectra for the co-sensitized DSSCs. The Soret and Q absorption bands 11 of LP-2 well compensate the weak absorption in the 400-500 nm and 600-700 nm regions for N719.…”

Role of co-sensitization in dye-sensitized and quantum dot-sensitized solar cells

“…Sharma and his colleagues analysed the co-sensitization effect of functionalized porphyrin compound ZnP-triazine-(gly) 2 with the tertiary aryl amine dye-D. In this case, about 7.34% efficiency was achieved with J sc = 14.78 mA cm −2 , V oc = 0.70 V, FF = 0.71% which was much higher than the device with porphyrin compound alone (η = 4.72%) [224]. Fan et al [52] investigated stepwise co-sensitization of novel D-π-A Zn (II) porphyrin dye sensitizers FNE57 and FNE59 with the organic dye FNE46.…”