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. 2021 Aug 19;33(17):7017–7027. doi: 10.1021/acs.chemmater.1c02114

Table 1. Thermal, Optical, and Photophysical Properties of the HTMs.

ID Tg (°C)a Tdec (°C)a λabs (nm)b λPL (nm)b ΦPL (%) IP (eV)c Eg (eV)d Eea (eV)e μ0 (cm2 V–1 s–1)f
Cz-OMeDPA 81 379 305, 372 448 23 4.99 2.92 2.07 2.2 × 10–9
2Cz-OMeDPA 121 398 303, 372 449 18 5.16 2.97 2.19 3.2 × 10–6
3Cz-OMeDPA 126 402 303, 372 449 18 5.08 2.92 2.16 2.4 × 10–6
4Cz-OMeDPA 126 410 302, 373 452 22 5.17 2.88 2.29 1.2 × 10–6
2Cz-OMeDPA-OH 121 400 303, 372 449 18 5.12 2.94 2.18 3.1 × 10–5
3Cz-OMeDPA-OH 120 408 303, 373 450 17 5.16 2.91 2.25 6.9 × 10–6
4Cz-OMeDPA-OH 131 409 303, 373 452 19 5.18 2.82 2.36 4.0 × 10–6
a

Glass-transition (Tg) and decomposition (Tdec) temperatures determined from DSC and TGA, respectively (10 °C/min and N2 atmosphere).

b

UV–vis and PL spectra were measured in THF solutions (10–4 M).

c

Ionization energies of the films measured using PESA.

d

Eg estimated from the intersection of absorption and emission spectra of solid films.

e

Eea = IP – Eg.

f

Mobility value at zero field strength.