139092-78-7 Usage
Applications
Having three carbazole units as the pendants and triarylamine at the core, tris(4-carbazoyl-9-ylphenyl)amine (TCTA) is electron-rich. As a result, it is widely used as a hole-transport and hole-injection material in light-emitting diodes and perovskite solar cells. With low electron mobility, TCTA has also been used as exciton/electron blocking layer materials because of its high lying LUMO energy level (LUMO = 2.4 eV).
TCTA is also a very popular phosphorescent host material due to its large band gap (Eg = 3.4 eV) for green, red and white phosphorescent organic light-emitting diodes (PhOLEDs).
Description
Having three carbazole units as the pendants and triarylamine at the core,?tris(4-carbazoyl-9-ylphenyl)amine (TCTA) is electron-rich. As a result, it is widely used as a hole-transport and hole-injection material in light-emitting diodes and perovskite solar cells. With low electron mobility, TCTA has also been used as exciton/electron blocking layer materials because of its high lying LUMO energy level (LUMO = 2.4 eV).
Chemical Properties
Light yellow solid
Uses
4,4'',4''''-Tris(carbazol-9-yl)-triphenylamine has been patented for use in the preparation of light-emitting materials for organic electroluminescent devices.
Check Digit Verification of cas no
The CAS Registry Mumber 139092-78-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,0,9 and 2 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 139092-78:
(8*1)+(7*3)+(6*9)+(5*0)+(4*9)+(3*2)+(2*7)+(1*8)=147
147 % 10 = 7
So 139092-78-7 is a valid CAS Registry Number.