In this work, we report on the beta-gallium oxide (β-Ga2O3) monolithic bidirectional switch. The as-fabricated switch works on enhancement mode operation with a threshold voltage of ∼4 V. Maximum drain current density of 1.93 mA/mm is obtained with a drain voltage of 5 V. The bidirectional switch in a bidirectional mode has an ON/OFF current ratio of ∼107 with ON-resistance of 1.11 and 1.09 kΩ · mm in forward and reverse direction, respectively. However, in diode mode, the device shows an ON/OFF current ratio of 1.6 × 108 and 1.4 × 108 in forward and reverse conduction modes, respectively. The fabricated β-Ga2O3 monolithic bidirectional switch is then used to chop a 60 Hz Alternating Current signal at a chopping frequency of 1 kHz, indicating its potential applications in a range of converters.

中文翻译：

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用于交流开关应用的常闭 β-氧化镓单片双向开关演示


在这项工作中，我们报道了 β-氧化镓 （β-Ga2O3） 单片双向开关。制造的开关在阈值电压为 ∼4 V 的增强模式下工作。当漏极电压为 5 V 时，最大漏极电流密度为 1.93 mA/mm。双向模式下的双向开关的导通/关电流比为 ∼107，导通电阻为 1.11 和 1.09 kΩ ·mm 分别在正向和反向。然而，在二极管模式下，该器件在正向和反向导通模式下的开/关电流比分别为 1.6 × 108 和 1.4 × 108。然后，使用制造的 β-Ga2O3 单片双向开关以 1 kHz 的斩波频率对 60 Hz 交流信号进行斩波，表明其在一系列转换器中的潜在应用。