Synthesis and Characterization of TriphenylethyleneDerivatives with Aggregation-Induced EmissionCharacteristics

Presented by : Muhammad Faisal 10060607-084

INTRODUCTION

• Aggregation Induced Emission (AIE) Property

• Organic luminescent materials with AIE properties

• Applications of AIE in the areas of

– Electroluminescence devices

– Chemosensors

• Limited in number due to complicated and difficult preparation.

• Triphenylethylene carbazole and triphenylethylene derivatives

EXPERIMENTAL

• SYNTHESIS:– The derivatives were easily prepared by a three-step reaction, including

the Suzuki and Wittig–Horner reactions.

• CHARACTERIZATION:– Structural Identification– Thermal Properties– Photopysical and Electrochemical Properties– Aggregation Induced Emission Properties

RESULTS & DISCUSSION

Thermal properties:

RESULTS & DISCUSSION

Photophysical and Electrochemical Properties:

RESULTS & DISCUSSION

Aggrigation Induced Emission Properties:

CONCLUSION• We have developed New class of AIE compounds……

• Blue light emitters

• Maximum fluorescence emission wavelength 443-461

nm.

• Glass transition temperature range, 86-129 °C…..

• Decomposition temperature, 432-534 °C…..

• HOMO levels are between5.61-5.66 eV….

• ΔEg values range is 3.18-3.22 eV….

• The compounds (BN)2Bt and (BB)2Bt exhibited vibronic

fine-structure PL spectra when the water fraction was less

than 70%