Locally induced Stark shifts of collective excitonic modes in polyradical aggregates

• Amandeep Sagwal,
• Rodrigo Cezar de Campos Ferreira,
• Petr Kahan,
• Maximilian Rödel,
• Jindřich Nejedlý,
• Jiří Doležal and
• Martin Švec

Beilstein J. Nanotechnol. 2026, 17, 1185–1193, doi:10.3762/bjnano.17.81

• , nanocavity coupling, and electrostatic charge inhomogeneities in the clusters. This sensitivity to the external parameters demonstrates an effective means of control over radical excitonic aggregates. Keywords: chromophore; dark states; exciton; Stark shift; TEPL; tip-enhanced photoluminescence

• show a general blue- and redshift of a few millielectronvolts, respectively, and the spectral envelope is notably widened for the spectrum at −2.0 V. Detailed bias dependence measurements with and without illumination allow us to put the bias-induced Stark shift and complex restructuring of the

• wedged between the two chromophores in a perpendicular orientation and stabilized by the carboxylic group–hydrogen interactions (see Figure 2e), we observe a specific change of the apparent Stark shift for the dominating peak measured at the periphery. The zero-bias TEPL spectra in Figure 2f at the

Hexagonal boron nitride: a review of the emerging material platform for single-photon sources and the spin–photon interface

• Stefania Castelletto,
• Faraz A. Inam,
• Shin-ichiro Sato and
• Alberto Boretti

Beilstein J. Nanotechnol. 2020, 11, 740–769, doi:10.3762/bjnano.11.61

• and thus further investigations are necessary to explore SPEs in h-BN. The ZPL spectral fluctuation (diffusion) is often found due to ionization and the charging of neighboring defects leading to the Stark shift. SPEs in h-BN flakes exposed to blue (405 nm) laser light show pronounced fluorescence

Invariance of molecular charge transport upon changes of extended molecule size and several related issues

• Ioan Bâldea

Beilstein J. Nanotechnol. 2016, 7, 418–431, doi:10.3762/bjnano.7.37

• Hμ,ν may depend on the bias V (e.g., Stark shift of orbital energies) [22][41][42][43] is particularly noteworthy. (ii) Considering a specific molecule or even a specific class of homologous molecular series, the demonstration of the envisaged invariance property would have been restricted to certain