[16a-W9_325-1~7] 22.1 Joint Session M "Phonon Engineering"

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)

[16a-W9_325-1] Sustainable Cooling in Semiconductor-Sensitized Thermal Energy Utilization Power Generation

〇Sachiko Matsushita^1,2, Atsushi Hayashida², Hitoshi Saito², Chunxiang Yang¹, Taiga Nishii¹, Motokazu Ishihara², Yuta Nakamura¹, Kento Sunaga¹ (1.Science Tokyo, 2.elleThermo, Ltd.)

Keywords:

Thermal energy conversion,thermoelectric,carbon neutral

In recent years, isothermal energy conversion systems have been reported to exhibit cooling effects originating from heat consumption during operation. In this study, we focus on a semiconductor-sensitized thermal cell (STC) and measured temperature changes associated with electrical discharge. As a result, while the temperature difference diminished over time under continuous discharge, a sustained cooling of approximately 1 °C was observed by repeating on–off discharge cycles, demonstrating an effective experimental platform for verifying entropy-driven heat consumption in isothermal electrochemical energy conversion systems.