High heat dissipation rates are enabled by multi-phase cooling schemes owing to latent
heat uptake. We demonstrate enhanced flow boiling from a carbon nanotube (CNT)-coated
copper surface exposed to low-intensity ultraviolet (UV)-visible excitation. Compared to non-
illuminated results, the average boiling incipience temperature decreased by 4.6 C and heat
transfer coefficients improved by 41.5% with light exposure. These improved results are
attributed to augmented hydrophilicity upon exposure to UV light and possible nanoscale …