Watcharaphol Paritmongkol

Highlights • AgSePh has hybrid organic-inorganic vibrational modes coupled to excitonic states • Coupled modes exhibit large out-of-plane Ag motions and Ag-Se spacing displacements • Light emission is affected by a mode involving phenyl wagging and Ag-Se stretching • Non-covalent interactions between phenyl rings lead to significant anharmonicity Progress and potential Semiconductors are the backbone of modern technology, found in almost all electronic devices.

1 Introduction Colloidal quantum dots (QDs) are candidates for light-emitting diodes (LEDs), backlit displays, memristors, luminescent solar concentrators, and lasers.[1-3] Recent advances in synthetic methodologies have allowed the preparation of high-quality QDs with narrow emission linewidths and near-unity photoluminescence (PL) quantum yield (QY) needed for high-color-purity displays.[4-7] The restriction on cadmium (Cd)-based materials in consumer electronics has stimulated the search...