https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42999 Thu 25 May 2023 09:29:31 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44455 Thu 13 Oct 2022 15:15:23 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42627 61 -butyric acid methyl ester (P3HT:PC₆₁BM) photoactive system, that can influence the optoelectronic properties for enhanced performance in BHJ PSCs. The optical, electrical, morphological, surface, structural characteristics of the fabricated BHJ PSCs were systematically examined. The atomic force microscopy and X-ray photoelectron spectra measurements confirmed the structural reorganization, phase separation of polymer and fullerene domains resulting in the formation of well-ordered blend in the additive based devices. BHJ PSCs fabricated with P3HT:PC₆₁BM:2-DHP and P3HT:PC₆₁BM:2,4-DHP yielded a best power conversion efficiency (PCE) of 4.35% and 3.58%, respectively, which in contrast outperformed than the PCE obtained from P3HT:PC₆₁BM device (3.01%). The remarkably improved performance for P3HT:PC₆₁BM:2-DHP can be attributed to the enhanced short-circuit current density induced by the morphology optimization. Additionally, the devices fabricated with the solid additives (2-DHP and 2,4-DHP) exhibited improved air-stability due to the oxygen insensitivity of the functional groups present in the chosen additives. The pyridine and hydroxyl groups in 2-DHP and 2,4-DHP possibly form the intermolecular interactions with the photoactive components (P3HT/PC₆₁BM), contribute to the morphology optimization and subsequent PV performance enhancement in BHJ PSCs. It is believed that our findings can inspire and trigger further advanced research toward the design and development of stable and highly efficient BHJ PSCs by rationally choosing low-cost solid additives.]]> Mon 29 Jan 2024 18:04:59 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44723 Mon 29 Jan 2024 17:47:58 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37189 61BM) photoactive system to fabricate highly efficient ternary based bulk heterojunction polymer solar cells (PSCs). The PCBTDPP ternary-based PSC with optimal loading (0.2 wt.%) displayed outstanding performance with a champion power conversion efficiency (PCE) of 5.28% as compared to the PCE (4.67%) for P3HT:PC₆₁BM-based PSC (reference). The improved PCE for PCBTDPP ternary-based PSC can be mainly attributed to the incorporation of PCBTDPP into P3HT:PC61BM that beneficially improved the optical, morphological, electronic, and photovoltaic (PV) performance. This work instills a rational strategy for identifying components (donor/acceptor (D/A) molecules) with complementary beneficial properties toward fabricating efficient ternary PSCs.]]> Fri 28 Aug 2020 15:09:45 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44724 60BA) photoactive medium. A dramatic increase in the power conversion efficiency (~20%) was witnessed for the BHJ PSCs treated with DHP compared to the pristine devices. A plausible explanation describing the alignment of pyridine moieties of DHP with the indene side groups of IC₆₀BA is presented with a view to improving the performance of the BHJ PSCs via improved crystalline order and hydrophobicity changes.]]> Fri 21 Oct 2022 13:46:48 AEDT ]]>