A radiation and heat dissipation device for electronic components, comprising: a heat dissipation base, the heat dissipation base comprises a heat dissipation base surface with a heat dissipation base surface heat release rate; a heat emission rate modulation layer is formed on the surface of the heat dissipation base, the heat emission rate modulation The layer includes a thermal emissivity modulating layer surface with a thermal emissivity modulating layer surface thermal heat release rate, wherein the thermal emissivity modulating layer surface thermal heat release rate is greater than the heat dissipation substrate surface thermal heat release rate. |