Nujud Alqahtani
PhD student at the university of Sheffield
Title: preparation of new hyperbranched polymer based on TADF for OLED application
Biography
Biography: Nujud Alqahtani
Abstract
Due to many benefits of organic light-emitting diodes (OLEDs), and their ability to be extended to electronic products, commercial fields, transport, industrial controller, and medical field 1 the performance of OLEDs has been improved speedily over the last three decades. 2,3Therefore, this project aims to explore an efficient way to reduce the manufacturing cost of the luminescent layer material and rise its suitability. Due to the low cost, simple confession, increased manufacture efficiency, and commercial cost, the solution processing to fabricate the OLED device has become the focus of research.4 PLEDs based on traditional fluorescent materials have generally restricted external quantum efficiencies (EQEs) around 5 % because of spin statistic rules,5 which greatly limit them comprehensive application. Furthermore, by simultaneously using singlet and triplet excitons by intersystem crossing (ISC), the internal quantum efficiency (IQE) of PLED devices that include organometallic phosphors is almost 100%.6 However, the rare and expensive noble metals, such as Ir or Pt, are common components in heavy-metal complexed phosphorescent materials.