A point-contact-type sandwich-structure Peltier device and time constant

摘要

We proposed a new type Peltier device, and succeeded in fabrication of the device, which we call a point-contact-type sandwich structure (PCS). A micro-object can be cooled or heated using our fabricated device. The tip was cooled through the Peltier effect. In air, the tip temperature reached -44.7℃ at 28A. When current was reversed, the tip was heated, and the maximum tip temperature was 221.5℃ at 20A. Moreover, the minimum time constant of tip temperature was 1.7sec at 35 A for cooling, and was 2.1 sec at 2A for heating.For an application of PCS device, we fabricated a pen-type Peltier device. The PCS Peltier device can be useful in medical treatment and bioelectronics.