This scientific illustration was created as an illustration of a new technology to control electrical transport separately from thermal transport by leveraging the 2-dimensional electron gas in AlGaN/GaN heterostructures. Shown here is an imagining of that technology where phonons (yellow) are shuttled from a heated 'electron city' in the distance to a cooler, distant heat sync.
This commission was selected as the back cover of Advanced Functional Materials, Volume 28, Issue 22.
The work can be seen in published format here: https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.201870152