1422969-69-4

Upstream product

• 3972-65-4 1-bromo-4-tert-butylbenzene 
• 135-67-1 phenoxazine 

Downstream Products

• 1422969-71-8 C₄₄H₄₀N₂O₂ 
• 1278072-04-0 7,7'-dibromo-10,10'-bis-(4-tert-butyl-phenyl)-10H,10'H-[3,3']biphenothiazinyl 
• 1422969-70-7 C₂₈H₃₂BNO₃ 

Relevant academic research and scientific papers

High efficiency new hole injection materials for organic light emitting diodes based on dimeric phenothiazine and phenoxazine moiety derivatives

New hole injection materials for organic light emitting diodes (OLEDs) based on phenothiazine and phenoxazine were synthesized, and the electro-optical properties of synthesized materials were examined by through UV-visible (UV-vis), photoluminescence (PL) spectrum and cyclic voltammetry (CV). 1-BPNA-t-BPBP and 1-BPNA-t-BPBPOX showed Tg of 127 and 200 °C, which are higher than that (110 °C) of 2-TNATA, a commercial hole injection layer (HIL) material. The highest occupied molecular orbital (HOMO) level of the synthesized materials of 1-BPNA-t-BPBP and 1-BPNA-t-BPBPOX were 4.97 and 4.91 eV, indicating values well-matched between HOMO (4.8 eV) of ITO and HOMO (5.4 eV) of NPB, hole transporting layer (HTL) material. As a result of using the synthesized materials in OLED device as HIL, 1-BPNA-t-BPBPOX of 2.43 lm/W was higher than 2-TNATA of 1.98 lm/W and 1-BPNA-t-BPBP of 1.39 lm/W in power efficiency. These results indicated that 1-BPNA-t-BPBPOX shows higher excellent power efficiency which is about 18% improved over 2-TNATA a commercial HIL material. Copyright