https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 Thienylvinylenethienyl and naphthalene core substituted with triphenylamines-highly efficient hole transporting materials and their comparative study for inverted perovskite solar cells https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33910 oc of 1.07 V. The obtained performance is one of the highest performances in inverted perovskite layouts. The cut‐price and straightforward synthesis with elegant scale up makes these classes of materials important for the industry to produce high‐throughput printed perovskite solar cells for large area applications.]]> Wed 23 Jan 2019 10:40:21 AEDT ]]> Dopant-free novel hole-transporting materials based on quinacridone dye for high-performance and humidity-stable mesoporous perovskite solar cells https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:49156 Tue 14 Nov 2023 11:41:55 AEDT ]]> Fluorination of pyrene-based organic semiconductors enhances the performance of light emitting diodes and halide perovskite solar cells https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:39958 L-F) has been designed and synthesized starting from a low-cost pyrene core functionalized with triphenilamine substituents at 1,3,6,8 positions (L-H), obtained via Suzuki coupling reactions. Its performance when used as green emitter in organic light emitting diodes (OLEDs) or as dopant-free hole-transporting material (HTM) in halide perovskite solar cells (PSCs) is higher than that of the L-H counterpart, in spite of its lower bulk hole-mobility (7.0 x 10−6 cm2/V) to L-H (1.9 x 10−4 cm2/V). In fact, the OLED devices based on a L-F active layer showed excellent green emission (brightness and current efficiency were 1759.8 cd/m2 and 3.7 cd/A, respectively) at a 4.5 V turn-on voltage. When the molecules were employed as a dopant-free HTM in PSCs, L-F led to a power conversion efficiency (PCE) and open circuit voltage (Voc) of 5.9% and 1.07 V, respectively, thus outperforming those of corresponding devices based on L-H (PCE = 5.0% and Voc = 0.87 V) under similar experimental conditions (AM 1.5G and 100 mW cm2). We attribute the enhancements of L-F-based optoelectronic devices (OLEDs and PSCs) to the observed better quality of the L-F films. The promising performance of L-F indicates that fluorination of small molecules can be an effective strategy to achieve low-cost and high-performing materials for energy harvesting and display-based organic electronic devices.]]> Mon 29 Jan 2024 17:53:33 AEDT ]]> All-rounder low-cost dopant-free D-A-D hole-transporting materials for efficient indoor and outdoor performance of perovskite solar cells https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36858 Fri 10 Jul 2020 19:14:44 AEST ]]>