Dyes in dye aggregate systems—engineering J, K, and dye packing
The present disclosure is directed to designing dyes and methods to alter the parameters controlling the dipole-dipole coupling of dyes bound to a nucleotide oligomer architecture, which are used to propagate excitons for use in next generation room temperature quantum information systems. The disclosed dyes and methods are directed to changing the dye stability, symmetry, overlap, and steric hindrance of the dyes to fine tune aggregate systems.
1 . A method of engineering a permanent dipole coupling between dyes, described by the parameter K, comprising:
coupling two or more of the dyes to form one or more dye aggregates;
tuning an orientation between the two or more dyes within the one or more dye aggregates by controlling a charge transfer of the two or more of the dyes.
2 . The method of claim 1 , wherein the one or more dyes are asymmetrical and one or more His substituted with COOEt, CN, or NO 2 .
3 . The method of claim 1 , wherein the one or more dyes are symmetrical and a COOEt is substituted with H.
4 . The method of claim 1 , wherein the one or more dyes are symmetrical and a CN is substituted with H.
5 . The method of claim 1 , wherein the one or more dyes are symmetrical and a NO 2 is substituted with H.
6 . The method of claim 1 , further comprising tethering the one or more dye aggregates to a nucleic acid architecture.
7 . The method of claim 6 , wherein the nucleic acid architecture is a Holliday junction.
8 . The method of claim 6 , wherein the nucleic acid architecture is a nucleic acid brick template.
9 . The method of claim 1 , wherein the two or more dyes are asymmetric.
10 . The method of claim 2 , further comprising changing between an electronic ground-state and an electronic excited state, wherein a difference between the electronic excited state and the electronic ground state is the difference static dipole moment (Δd).
11 . The method of claim 1 , further comprising changing an intermolecular distance between the two or more dyes in the one or more dye aggregates so that the intermolecular distance is less than a size of each of the two or more dyes.
12 . The method of claim 2 , further comprising increasing an electron withdrawing strength of a substituent on one side of the two or more dyes.
13 . The method of claim 2 , further comprising adding increasingly stronger electron withdrawing substituents to a symmetric dye to produce asymmetric dye structures dyes with greater difference static dipole moment (Δd).
14 . The method of claim 1 , wherein the one or more dyes are cyanine dyes.
15 . The method of claim 14 , wherein the cyanine dyes are systematically altered with electron withdrawing end substituents to produce conjugated systems with increasing polarity.
16 . The method of claim 14 , further comprising starting with symmetric cyanine dyes and adding end substituents with increasing electron withdrawing strength, thereby altering a difference static dipole moment (Δd) in dyes and the parameter K in aggregates templated via Holliday junctions.
17 . The method of claim 1 , further comprising simultaneously engineering a transition or a nonpermanent dipole-dipole coupling, described by the parameter J, of the two or more dyes within the one or more dye aggregates or between the one or more dye aggregates by tuning, with a dye that has a large enough extinction coefficient to shield an emitting part of the dye, a distance and an orientation between dyes and/or dye to dye intermolecular interactions.
18 . The method of claim 17 , further comprising increasing a dye transition dipole moment (μ) in the two or more dyes.