Table 2 VOC loss profile of PBDB-T:Y1- and PBDB-T:Y2-based OPV devices
From: Enabling low voltage losses and high photocurrent in fullerene-free organic photovoltaics
Devices | Eg (eV) | \(qV_{{{{\mathrm {OC}}}}}^{{{{\mathrm {SQ}}}}}\) (eV) | \(qV_{{\mathrm {OC}}}^{{\mathrm{rad}}}\) (eV) | ΔE (eV) | ΔE1 \(E_{{\mathrm {gap}}} - qV_{{\mathrm {OC}}}^{{\mathrm {SQ}}}\) (eV) | ΔE2 \(q{{\Delta }}V_{{\mathrm {OC}}}^{{\mathrm {rad}},{\mathrm {below}}\,{\mathrm{gap}}}\) (eV) | ΔE3 \(q{{\Delta }}V_{{{{\mathrm {OC}}}}}^{{{{\mathrm {non}}}}-{{{\mathrm {rad}}}}}\) (eV) |
|---|---|---|---|---|---|---|---|
PBDB-T:Y1 | 1.44 | 1.17 | 1.12 | 0.57 | 0.27 | 0.05 | 0.25 |
PBDB-T:Y2 | 1.40 | 1.13 | 1.09 | 0.57 | 0.27 | 0.04 | 0.26 |
