TY - JOUR
T1 - Stokes shift/emission efficiency trade-off in donor-acceptor perylenemonoimides for luminescent solar concentrators
AU - Turrisi, Riccardo
AU - Sanguineti, Alessandro
AU - Sassi, Mauro
AU - Savoie, Brett
AU - Takai, Atsuro
AU - Patriarca, Giorgio E.
AU - Salamone, Matteo M.
AU - Ruffo, Riccardo
AU - Vaccaro, Gianfranco
AU - Meinardi, Francesco
AU - Marks, Tobin J.
AU - Facchetti, Antonio
AU - Beverina, Luca
N1 - Publisher Copyright:
© The Royal Society of Chemistry 2015.
PY - 2015/4/21
Y1 - 2015/4/21
N2 - 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 Stokes shifts. The sizeable reabsorption of the emitted light limits the performances of perylenediimides in imaging applications and luminescent solar concentrators. Perylenemonoimides (PMIs) having an electron donating substituent in one of the free peri positions feature larger Stokes shift values while retaining high chemical stability. The selection of the most appropriate donor, both in terms of electron donating capability and steric demand, boosts emission efficiency and limits reabsorption losses. The synthesis, optical spectroscopy, molecular orbital computations, UPS, electrochemical, spectroelectrochemical, and multinuclear NMR investigation of a series of PMI derivatives functionalized with donors having different electronic characteristics and steric demands are discussed. Results are relevant for the fabrication of single layer plastic luminescent solar concentrators (LSC).
AB - 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 Stokes shifts. The sizeable reabsorption of the emitted light limits the performances of perylenediimides in imaging applications and luminescent solar concentrators. Perylenemonoimides (PMIs) having an electron donating substituent in one of the free peri positions feature larger Stokes shift values while retaining high chemical stability. The selection of the most appropriate donor, both in terms of electron donating capability and steric demand, boosts emission efficiency and limits reabsorption losses. The synthesis, optical spectroscopy, molecular orbital computations, UPS, electrochemical, spectroelectrochemical, and multinuclear NMR investigation of a series of PMI derivatives functionalized with donors having different electronic characteristics and steric demands are discussed. Results are relevant for the fabrication of single layer plastic luminescent solar concentrators (LSC).
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U2 - 10.1039/c5ta01134e
DO - 10.1039/c5ta01134e
M3 - Article
AN - SCOPUS:84926430169
SN - 2050-7488
VL - 3
SP - 8045
EP - 8054
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
IS - 15
ER -
