The atomic layer thermopile heat flux sensor based on the inclined epitaxial YBa2Cu3O7-δ films

The atomic layer thermopile heat flux sensor based on the inclined epitaxial YBa2Cu3O7-δ films
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基于倾斜外延YBa2Cu3O7-δ薄膜的原子层热电堆热通量传感器

DOI:
10.1016/j.matlet.2022.133336
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发表时间:
2022-10
期刊:
影响因子:
3
通讯作者:
Xia Yudong
Xia Yudong
中科院分区:
材料科学3区
文献类型:
--
作者:
Chen Xi;Tao Bowan;Zhao Ruipeng;Yang Kai;Li Zhenzhe;Xie Tian;Zhong Yao;Zhang Tong;Xia Yudong

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采用磁控溅射法在斜切12° LaAlO 3衬底上制备了YBa 2Cu 3 O 7-δ(YBCO)薄膜,并利用该薄膜制备了原子层热电堆(ALTP)热流传感器。由于YBCO薄膜具有良好的双轴织构,保持了较大的Seebeck系数各向异性,因此ALTP热流传感器的灵敏度达到17.54 μV/(kW/m2)。此外,由于制备的YBCO薄膜的高电导率,传感器的响应频率高于1 MHz,这也高于文献中报道的电流最大值(650 kHz)。这些结果表明,我们的ALTP热流传感器可以实现1 MHz以上的高频热流检测。
The atomic layer thermopile (ALTP) heat flux sensor based on highlyc-axis oriented YBa2Cu3O7-δ(YBCO) films prepared on miscut 12° LaAlO3substrates using magnetron sputtering is achieved. Benefiting from good biaxial texture, the YBCO film maintains a large Seebeck coefficient anisotropy, so the sensitivity of the ALTP heat flux sensor reaches 17.54 μV/(kW/m2). In addition, the response frequency of the sensor is higher than 1 MHz due to the high electrical conductivity of the prepared YBCO films, which is also higher than the current maximum (650 kHz) reported in the literature. These results indicate that our ALTP heat flux sensor can realize high-frequency heat flux detection above 1 MHz.
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