165261-51-8Relevant articles and documents
Long-lived triplet excited state in a platinum(ii) perylene monoimide complex
Yarnell, James E.,Chakraborty, Arnab,Myahkostupov, Mykhaylo,Wright, Katherine M.,Castellano, Felix N.
, p. 15071 - 15081 (2018/11/10)
We report the synthesis and solution based photophysical properties of a new Pt(ii)-terpyridine complex coupled to a perylene monoimide (PMI) chromophoric unit through an acetylene linkage. This structural arrangement resulted in quantitative quenching of the highly fluorescent PMI chromophore by introducing metal character into the lowest energy singlet state, thereby leading to the formation of a long-lived PMI-ligand localized triplet excited state (τ = 8.4 μs). Even though the phosphorescence from this triplet state was not observed, highly efficient quenching of this excited state by dissolved oxygen and the observation of singlet oxygen photoluminescence in the near-IR at 1270 nm initially pointed towards triplet excited state character. Additionally, the coincidence of the excited state absorbance difference spectra from the sensitized PMI ligand using a triplet donor and the Pt-PMI complex provided strong evidence for this triplet state assignment, which was further supported by TD-DFT calculations.
Stokes shift/emission efficiency trade-off in donor-acceptor perylenemonoimides for luminescent solar concentrators
Turrisi, Riccardo,Sanguineti, Alessandro,Sassi, Mauro,Savoie, Brett,Takai, Atsuro,Patriarca, Giorgio E.,Salamone, Matteo M.,Ruffo, Riccardo,Vaccaro, Gianfranco,Meinardi, Francesco,Marks, Tobin J.,Facchetti, Antonio,Beverina, Luca
, p. 8045 - 8054 (2015/04/14)
Perylenediimides (PDIs) are among the best performing organic luminescent materials, both in terms of emission efficiency and chemical and photochemical stability because of their rigid, symmetric and planar structure; however, they exhibit very small Sto
Supercritical carbon dioxide as a solvent for deposition of a tailored dye in dye sensitized solar cells
Maniam, Subashani,Holmes, Andrew B.,Krstina, Julia,Leeke, Gary A.,Collis, Gavin E.
, p. 3329 - 3332 (2012/02/01)
We report a new technique whereby dyes can be deposited onto metal oxide surfaces using supercritical carbon dioxide (scCO2) for use in solar cell applications. This process eliminates the need for hazardous organic solvents and waste solvents generated during the dyeing process. The solubility of a perylene anhydride dye in scCO2 is enhanced by the incorporation of fluorinated alkyl subsituents and the use of masked carboxylic binding groups. This allows fast deposition of the dye onto the TiO2 photoanode, resulting in efficient photovoltaic performance. The unreacted dye is then easily recovered in a solid form after the deposition process by venting the carbon dioxide.