Fig. 2: Chiral plasmon–exciton interaction in the hybrids between the chiral plasmonic NPs with strong geometrical chirality and TDBC aggregates.
From: Circularly polarized OLEDs from chiral plasmonic nanoparticle-molecule hybrids
a–f Extinction CD spectra of the chiral plasmonic NPs in aqueous solutions (black dashed lines) and corresponding hybrid films prepared by forming TDBC aggregates on the surfaces of the chiral plasmonic NPs (red lines). The hybrids were fabricated by the same amount of the chiral NPs (50 μL) and TDBC (0.92 mM, 80 μL). g Chiral-plasmon–chiral-exciton interaction evolving from the weak- to strong-coupling-like regime as the amount of TDBC (nTDBC) was increased in the (D-432 helicoid III NP)–(TDBC aggregate) hybrid films. nTDBC = 0, 18.5, 37, 55.5, 74, 111, 150 and 185 nmol for lines i–viii, respectively. The blue arrows show the enlarged CD splitting signals with the increased nTDBC. The SEM images and gext spectra of the chiral NPs are shown in Supplementary Fig. 7. Source data are provided as a Source Data file.
