Effect of PTAA and PCBM concentrations on the electrical response of bilayer heterojunction PTAA/PCBM Diode

Norjannah Yusop and Fuei, Pien Chee and Saafie Salleh and Fennyzra Elyce and Norsakinah Johrin and Pak, Yan Moh and Mohd Sani Sarjadi and Rosfayanti Rasmidi (2023) Effect of PTAA and PCBM concentrations on the electrical response of bilayer heterojunction PTAA/PCBM Diode. Results in Engineering, 18. pp. 1-10. ISSN 2590-1230

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Poly[bis(4-phenyl) (2,4,6-trimethylphenylamine] (PTAA) is a new promising hole transport material, and [6,6]-Phenyl C61 butyric acid methyl ester (PCBM) is a suitable electron acceptor material. This study deposited thin-film PTAA and PCBM at different spin coatings ranging from 1000 rpm to 5000 rpm. Ultraviolet–visible (UV–vis) spectrometer, X-ray diffraction (XRD) machine, and scanning electron microscope (SEM) techniques were used to determine the optical properties and structural properties, respectively. Thermal annealing with temperatures of 80 °C, 100 °C, 120 °C, and 150 °C was introduced to improve the properties of the PTAA and PCBM thin film. The results of SEM images for PTAA annealed at 150 °C appeared to darken and melt, whereas PCBM annealed at 120 °C and 150 °C had granule properties. The ideality factors for bilayer heterojunction diodes and bulk heterojunction PTAA/PCBM diodes with increased layers were 5.8–60.2 and 30.8–77.2, respectively. The optimum spin rate for the bilayer heterojunction PTAA/PCBM was 5000 rpm. The most appropriate diode behavior of the bilayer was at 5.0/1.0 wt%, 1.0/5.0 wt%, and 3.0/3.0 wt% of PTAA/PCBM, with the calculated ideality factors of 5.8, 6.2, and 15.45 with turn-on voltage of 1.57 V, 1.70 V, and 1.82 V, respectively.

Item Type: Article
Keyword: Poly[bis, 4-phenyl, 2,4,6-trimethylphenylamine, PTAA, 6,6-phenyl C61 butyric acid methyl ester, PCBM, Organic materials, Solar cell, Perovskite
Subjects: Q Science > QC Physics > QC1-999 Physics > QC501-766 Electricity and magnetism > QC501-(721) Electricity
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1-9971 Electrical engineering. Electronics. Nuclear engineering
Department: FACULTY > Faculty of Science and Natural Resources
Date Deposited: 15 Aug 2023 15:14
Last Modified: 15 Aug 2023 15:14
URI: https://eprints.ums.edu.my/id/eprint/36419

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