EU PVSEC Programme Online
EU PVSEC 2021, 6 - 10 September 2021
Presentation: 3AO.6.4 Effect of Additives and Annealing on the Performance of Nonfullerene-Based Binary and Ternary Organic Photovoltaics
Type: Oral
Date: Monday, 6th September 2021
17:00 - 18:30
Author(s): E. Moustafa, A.A.A. Torimtubun, J. Pallarès, L.F. Marsal
Presenter / Speaker: L.F. Marsal, URV, Tarragona, Spain
Event: Conference Conference
Session: 3AO.6 Organic and Dye-Sensitised Photovoltaics
Topic: 3. 3 Organic and Dye-Sensitised
Summary / Abstract: In this work, a morphological control of the binary (PM6:Y7) and ternary (PM6:Y7:PC70BM) blends was performed through 1-chloronaphthalene (CN) solvent additives and thermal annealing treatment (TA) with respect to their influence on the photovoltaic performance. The results indicated that these treatments affect the performance of the binary and ternary OPVs differently. Regarding the 2 % CN addition, the current density of the binary devices was improved by ≈ 27 %, while the fill factor of ternary devices showed pronounced increment of ≈ 22 %. A contradictory behavior was exhibited by TA for the binary and ternary OPVs. In which it improves the PCEs for binary devices (with/without CN) and 2 % CN treated ternary ones, while diminishing the PCEs of the ternary ones with 0 % CN . Accordingly, the highest efficiencies of the binary and ternary OPVs were obtained due to the dual effect of 2 % CN solvent additives along with the TA treatments.