Welcome to the Ray Research Group

Research in our group focuses on modular and tunable organic donor-acceptor conjugates in the development of adaptive photofunctional materials, such as dual-emitters (white-light), thermo-phosphors, phosphorescence switches and responsive emitters. For this purpose we utilize synthetic organic chemistry in conjunction with advanced spectroscopic methods and computational calculations.

Our interest in controlling non-radiative pathways has driven us to the development of new donor-acceptor conjugates that can show TEPL (TADF/RTP) with increasing temperature above RT via thermal induced conformational change(TICC) mechanism. These novel systems are expected to form the basis of singlet and triplet harvesting that can be used in high energy-efficient OLEDs, security-imaging, sensors, sensitizers, photocatalyst, photodynamic therapy to bio-imaging. In this regard, the group is also developing ultra-rigid multiple-donors-acceptor (D2-A/D1D2-A) materials that can show high PLQY, sub-microseond delayed emission.

Our group also focuses on photochromic phosphorescence switches (D4-A) that can show on/off RTP. These materials have potential applications in security-imaging, data encryption/decryption, anticounterfitting, and sensors.