Table 1 Photophysical properties of p-TBPM, m-TBPM, and o-TBPMa

From: Narrowband clusteroluminescence with 100% quantum yield enabled by through-space conjugation of asymmetric conformation

 

λabs (nm)

TBC emission

TSC emission

Φ (%)

kr (ns-1)

knr (ns-1)

λTBC (nm)

τ (ns)

λTSC (nm)

FWHM (nm)

τ (ns)

p-TBPM

263

–

–

365

53

2.76

76

0.275

0.087

m-TBPM

255

317

4.57

374

40

3.36

100

0.298

–

o-TBPM

230

308

1.49

390

>70

4.43

4

0.009

0.218

  1. aAbbreviation: λabs maximum absorption wavelength in the THF solution, TBC through-bond conjugation, TSC through-space conjugation, λTBC maximum emission wavelength of TBC in the solid state, λTSC maximum emission wavelength of TSC in the solid state, FWHM full-width at half-maximum, τ fluorescence lifetime, Φ absolute quantum yield in the solid state. Excitation wavelength: 310 nm for p-TBPM and m-TBPM, and 300 nm for o-TBPM. kr radiative decay rate, knr non-radiative decay rate.
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