Table 2 The phosphorescence characteristics of silylene-diphenylene polymers in diluted toluene solutions.

From: Bipolar and Unipolar Silylene-Diphenylene σ-π Conjugated Polymer Route for Highly Efficient Electrophosphorescence

Materials

Phosphorescence

Molecular Complexes

Peaks (nm)

ET(eV)a

Content

Peaks (nm)f

ET (eV)

Si(tOXD)(tTPA)

[405, 424]d, 467(sh), 503, 536

[3.07]d, 2.66e

TPA-OXD exciplex (44.4%)

513, 547

2.42

Si(tOXD)(oTPA)

467(sh), 503, 536

2.66e

TPA-OXD exciplex (59.3%)

513, 547

2.42

Si(dtOXD)

[416, 446]d, 468, 503, 533(sh)

[2.98]d, 2.66e

OXD excimer (33.1%)

546

2.28

Si(doTPA)

[405]d, 465(sh), 493, 533(sh)

[3.07]d, 2.67e

TPA excimer (2.2%)

494(sh), 546

2.52

Si(dBu)

465(sh)c, 493, 533(sh)

2.67e

—

—

—

TPAb

405, 422

3.07

   

OXDb

414, 446, 472

3.00

—

—

—

Biphenylb

428, 467, 493

2.85

   
  1. aThe energy of the first peak of the phosphorescence spectrum is taken as the ET.
  2. bThe phosphorescence data are taken from literatures18,25,26.
  3. csh means shoulder.
  4. dThe quoted values are contributed from the isolated arm groups.
  5. eThe triplet energy is determined by the first peak of silylene-diphenylene backbone.
  6. fThe peaks are assigned by deconvolution of the total phosphorescence spectrum.
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