Details

Autor(en) / Beteiligte

• Tu, Thi Kieu Trang
• Salma, Sabrina Aufar
• Jeong, Mijin
• Kim, Joo Hyun
• Jeong, Yeon Tae
• Gal, Yeong-Soon
• Lim, Kwon Taek

Titel

Carbazole-Based Polyimide as a Hole-Transporting Material for Optoelectronic Applications

Ist Teil von

• Macromolecular Research, 2021, 29(10), , pp.735-742

Ort / Verlag

Seoul: The Polymer Society of Korea

Erscheinungsjahr

2021

Link zum Volltext

Quelle

SpringerLink

Beschreibungen/Notizen

• This paper reports the preparation of a novel polyimide (PI)-based hole-transporting material comprising carbazole and arylamine moieties as the backbone of the polymer. A diamine monomer named 4,4′-(9H,9′H-[3,3′-bicarbazole]-9,9′-diyl)dianiline is an electron-rich molecule which is suitable for achieving electrochromic materials. It is used to prepare an electrochromic carbazole-based PI via chemical imidization. The carbazole-based PI shows excellent thermal stability with a high decomposition temperature up to 500 °C, refractive index of 1.74, and reasonable transparency of 85%. In addition, the PI exhibits characteristics similar to those of electrochromic materials such as violet-green emissions in the visible range when in solution form, highest occupied molecular orbital (HOMO) energy levels of ∼5.4 eV, and a hole mobility of 7.44 × 10 −4 cm 2 V −1 s −1 . The excellent performance of the PI makes it a potential candidate for hole-transporting material in optoelectronic devices.