Synthesis and characterization of naphthalimide-based dyes for dye sensitized solar cells

Assessment of time-dependent density functionals for the electronic excitation energies of organic dyes used in DSSCs

“…All dyes ( N1–N13 ) have been experimentally studied as potential sensitizers for DSSCs. 65–77 Our selected group of sensitizers represent different types of dyes as the core (π spacer) moiety: thiophene ( N1 ), fused thiophenes ( N2 ), pyrazine ( N3 ), indoline ( N4 ), coumarin ( N5 ), perylene ( N6 ), naphthalamide ( N7 ), benzothiadiazole ( N8 ), anthracene ( N9 ), phenothiazine ( N10 ), diketo–pyrrolo–pyrrole ( N11 ), quinacridone ( N12 ), and quinoxaline-fused tetrathiafulvalene ( N13 ). In addition, the group represents different types of electron donors and acceptors.…”

“…The dye sensitizers selected in our present study were all tested experimentally and their potential to be used in DSSCs were also evaluated in these tests. 65–77 A vital parameter in determining the solar cell efficiency is the light harvesting efficiency (LHE) that can be obtained from the calculated oscillator strengths f : LHE = 1 − 10 − f . The values of the oscillator strengths for all dyes using all functionals in this study are reported in the ESI† in Tables S7–S42.…”

“…1) that have been experimentally investigated as potential sensitizers for DSSCs. The set contains the following dyes as the parent π conjugated core: thiophene ( N1 ), 65 fused thiophenes ( N2 ), 66 pyrazine ( N3 ), 67 indoline ( N4 ), 68 coumarin ( N5 ), 69 perylene ( N6 ), 70 naphthalamide ( N7 ), 71 benzothiadiazole ( N8 ), 72 anthracene ( N9 ), 73 phenothiazine ( N10 ), 74 diketo-pyrrolo-pyrrole ( N11 ), 75 quinacridone ( N12 ), 76 and quinoxaline-fused tetrathiafulvalene ( N13 ). 77…”

Synthesis and Solvent Dependent Fluorescence of Some Piperidine-Substituted Naphthalimide Derivatives and Consequences for Water Sensing

“…The electronic absorption spectra of naphthalimide derivatives show a broad absorption band in the visible range, located at 402 nm for 7 , in dioxane ( Figure 2 a). This absorption band can be assignable to a π-π* transition due to the naphthalimide moiety [ 10 , 47 , 48 ]. A shift to longer wavelength of visible absorption band was observed as the solvent polarity increased ( Table 1 ).…”

“…[ 1 , 2 , 3 , 4 , 5 ]. These versatile characteristics make naphthalimides potential materials for fluorescent sensors and molecular switchers, laser active media, light emitting diodes, dyes for natural synthetic fibers, fluorescent markers in biology, antitumor treatments, DNA targeting binders, and photoinitiators [ 2 , 3 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 ]. The optical and photophysical properties of naphthalimide derivatives depend on the substituent nature of the heterocycle as well as the position of the substituents [ 2 , 17 ].…”