Photoluminescence and electroluminescence of hexaphenylsilole are enhanced by pressurization in the solid state

Application of a hydrostatic pressure in the range of 1–650 atm boosted photoluminescence and electroluminescence of hexaphenylsilole by ∼10 and ∼73%, respectively, due to the suppression of intramolecular rotations and/or the increase in carrier injection, offering a helpful mechanistic insight into the intriguing phenomenon of aggregation-induced emission.