Molecular Bridge Enables Anomalous Enhancement in Thermal Transport across Hard-Soft Material Interfaces.

Advanced materials (Deerfield Beach, Fla.)

PubMedID: 24841621

Sun F, Zhang T, Jobbins MM, Guo Z, Zhang X, Zheng Z, Tang D, Ptasinska S, Luo T. Molecular Bridge Enables Anomalous Enhancement in Thermal Transport across Hard-Soft Material Interfaces. Adv Mater Weinheim. 2014;.
Conventional wisdom tells us that interfacial thermal transport is more efficient when the interface adhesion energy is enhanced. In this study, we demonstrate that molecular bridges consisting of small molecules chemically absorbed on solid surfaces can enhance the thermal transport across hard-soft material interfaces by as much as 7 folds despite a significant decrease in the interface adhesion energy. This work provides an unconventional strategy to improve thermal transport across material interfaces.