I don't understand what you mean by detail. The top face of the N type InSb substrate is sprinkled with C60 or C84 buckyballs at a density of 10^11 / cm2. Each buckyball is a diode anode. There is an ohmic contact metal layer on the back face of the substrate and a metal layer contacting the buckyballs on the side of them away from the substrate. There are still details like processing techniques which is what the $50K will be used to determine.

This is not a thermocouple. It can start from a mesoscale uniform temperature (temperature is not uniform on the nanometer scale without high heat conductivity). It will get cold as electrical energy is tapped off.

Aloha, Charlie