A thermal concentrator composition with optimized design and reduced thermal resistance as a means of enhancing heat transfer and energy conversion. The composition comprises a low thermal resistance coating and methods of achieving quantum regions of energy transfer and non-linear design features resulting from cost effective manufacturing methods applicable to the material composition. The thermal concentrator composition is selected principally from the group of surface coatings, preferably comprised of diamond coatings, which are critical to obtaining maximum thermal transfer through classical and such quantum means including tunneling, waves, and phonon conversions.