Table 1 Photovoltaic parameters of D18:AQx-2, D18:AQx-6 and D18:AQx-8 based OSCs under the illumination of AM 1.5 G, 100 mW cm−2

From: Suppressing electron-phonon coupling in organic photovoltaics for high-efficiency power conversion

Acceptors

Voc

(V)

JSC

(mA cm−2)

JSCcal,b

(mA cm−2)

FF

(%)

PCE

(%)

∆Enrc

(eV)

∆Elossd

(eV)

AQx-2a

0.868

(0.869 ± 0.003)

26.1

(25.8 ± 0.2)

25.4

76.0

(75.6 ± 0.3)

17.2

(17.0 ± 0.11)

0.206

0.529

AQx-6a

0.892

(0.890 ± 0.002)

26.8

(26.7 ± 0.1)

25.5

77.8

(77.1 ± 0.5)

18.6

(18.3 ± 0.10)

0.198

0.518

AQx-8a

0.913

(0.909 ± 0.003)

24.7

(24.9 ± 0.1)

23.9

75.7

(75.0 ± 0.4)

17.1

(17.0 ± 0.05)

0.178

0.493

AQx-6e

0.874

26.7

–

79.1

18.4

–

–

  1. aAverage values with standard deviation were obtained from 10 individual devices.
  2. bThe calculated JSC values from the EQE curve.
  3. cCalculated using eq. ∆Enr = −(kT/q)In(EQEEL).
  4. dCalculated using eq. ∆Eloss = Eg − qVOC, in which Eg is determined the crossing point of absorption and emission.
  5. eThe certified PCE obtained from National Institute of Metrology (NIM), Chain.
Back to article page