Abstract
Three host materials based on the carbazole were designed and facilely synthesized, i. e., 9-(6-(9-carbazolyl)hexyl)carbazole (hCP), 9-(4-(2-thiophene-based)phenyl) carbazole (sCP) and 9-(4-(9-carbazolyl)phenyl)carbazole(pCP). The relationships between the structures and photophysical, electrochemical and electrophosphorescent performances were investigated. Their emission peaks are located in UV region and the optical band gap are 3.51, 3.57, and 3.89 eV, respectively. Hence, they can be used as hosts in phosphorescent organic light-emitting devices (PhOLEDs). The PHOLEDs were fabricated by doping tris(2-phenylpyridine)iridium (Ir(ppy)3) in host as light-emitting materials. The maximum current efficiency of the PhOLEDs employed sCP as host was 44.88 cd/A.
Original language | English |
---|---|
Pages (from-to) | 8066-8072 |
Number of pages | 7 |
Journal | Tetrahedron |
Volume | 72 |
Issue number | 49 |
DOIs | |
Publication status | Published - 8 Dec 2016 |
Scopus Subject Areas
- Biochemistry
- Drug Discovery
- Organic Chemistry
User-Defined Keywords
- Bipolar host material
- Carbazole
- PhOLED
- Thiophene