Hu, Fa-Chun published the artcileDesign of OsII-based Sensitizers for Dye-Sensitized Solar Cells: Influence of Heterocyclic Ancillaries, COA of Formula: C8H5F3N4, the publication is ChemSusChem (2013), 6(8), 1366-1375, database is CAplus and MEDLINE.
A series of OsII sensitizers (TFOS-x, in which x = 1, 2, or 3) with a single 4,4′-dicarboxy-2,2′-dipyridine (H2dcbpy) anchor and two chelating 2-pyridyl (or 2-pyrimidyl) triazolate ancillaries was successfully prepared Single-crystal X-ray structural anal. showed that the core geometry of the OsII-based sensitizers consisted of one H2dcbpy unit and two eclipsed cis-triazolate fragments; this was notably different from the RuII-based counterparts, in which the azolate (both pyrazolate and triazolate) fragments are located at the mutual trans-positions. The basic properties were extensively probed by using spectroscopic and electrochem. methods as well as time-dependent d. functional theory (TD-DFT) calculations Fabrication of dye-sensitized solar cells (DSCs) was then attempted by using the I–/I3–-based electrolyte solution One such DSC device, which utilized TFOS-2 as the sensitizer, showed promising performance characteristics with a short-circuit c.d. (JSC) of 15.7 mA cm-2, an open-circuit voltage of 610 mV, a fill factor of 0.63, and a power conversion efficiency of 6.08 % under AM 1.5G simulated one-sun irradiation Importantly, adequate incident photon-to-current conversion efficiency performances were observed for all TFOS derivatives over the wide spectral region of 450-950 nm, showing a panchromatic light harvesting capability that extended into the near-IR regime. The results underlined a feasible strategy for maximizing JSC and increasing the efficiency of DSCs.
ChemSusChem published new progress about 219508-27-7. 219508-27-7 belongs to triazoles, auxiliary class Trifluoromethylated Building Blocks, name is 2-[5-(Trifluoromethyl)-1H-1,2,4-triazol-3-yl]pyridine, and the molecular formula is C8H5F3N4, COA of Formula: C8H5F3N4.
Referemce:
https://en.wikipedia.org/wiki/1,2,3-Triazole,
Triazoles – an overview | ScienceDirect Topics