Radiative Thermal Runaway Due to Negative-Differential Thermal Emission Across a Solid-Solid Phase Transition
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Univ. of Michigan, Ann Arbor, MI (United States)
- Univ. of Wisconsin, Madison, WI (United States)
- Harvard Univ., Cambridge, MA (United States)
- Purdue Univ., West Lafayette, IN (United States)
Thermal runaway occurs when a rise in system temperature results in heat-generation rates exceeding dissipation rates. In this work, we demonstrate that thermal runaway occurs in radiative (photon) systems given a sufficient level of negative-differential thermal emission. By exploiting the insulator-to-metal phase transition of vanadium dioxide, we show that a small increase in heat generation (e.g., 10 nW / mm2) results in a large change in surface temperature (e.g., ~35 K), as the thermal emitter switches from high emittance to low emittance. While thermal runaway is typically associated with catastrophic failure mechanisms, detailed understanding and control of this phenomenon may give rise to new opportunities in infrared sensing, camouflage, and rectification.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Solid-State Solar-Thermal Energy Conversion Center (S3TEC); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); US Department of the Navy, Office of Naval Research (ONR)
- Grant/Contract Number:
- SC0001299; FG02-09ER46577; N00014-16-1-2556; N00014-16-1-2398
- OSTI ID:
- 1540690
- Journal Information:
- Physical Review Applied, Vol. 10, Issue 2; ISSN 2331-7019
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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