New model helps design 2D perovskites for optoelectronic devices

Researchers developed a new predictive model for designing 2D perovskites, crucial for next-generation optoelectronic devices. The model isolates the effect of dielectric screening from structural changes, allowing for precise tuning of excitonic properties by varying organic spacer lengths. This breakthrough offers a molecular-level design rule for optimizing light-emitting and photovoltaic materials.