In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Thermally Stable Quantum Rods, Covering Full Visible Range for Display and Lighting Application, published in 2021-01-19, which mentions a compound: 78-50-2, Name is Tri-n-octylphosphine Oxide, Molecular C24H51OP, Product Details of 78-50-2.
Low Cd core-shell quantum rods (QRs), with a narrow-band luminescence spectrum tuned in the whole visible range, are prepared by replacing Cd with Zn in a 1-pot post-synthetic development. These QRs possess the good thermal stability of luminescence properties, and therefore, show high performance for the on-chip LED configuration. The designed white LEDs (WLEDs) are characterized by a high brightness of 120000 nits, and color gamut covering 122% NTSC (90% of BT2020), in the 1931CIE color space. These LEDs show a high luminous efficiency of 115 lm W-1. These quantum rod LED are perfectly viable for display backlighting and lighting applications.
In addition to the literature in the link below, there is a lot of literature about this compound(Tri-n-octylphosphine Oxide)Product Details of 78-50-2, illustrating the importance and wide applicability of this compound(78-50-2).
Reference:
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method