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Updated: May 24, 2025

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基于Ga₂O₃光探测器阵列的超敏感动态紫外线成像

Tiwei Chen, Nan Liu, Suzhen Cheng

|February 28, 2025

概括

在氧化 (Ga2O3) 探测器中减少三乙流量,抑制了氧气空缺,显著降低了噪音. 这一突破使得高灵敏度,快速反应,太阳盲紫外线成像系统成为可能.

科学领域:

材料科学材料科学材料科学
半导体物理半导体物理
光电学是指光电子产品.

背景情况:

氧化 (Ga2O3) 探测器由于缺陷和噪音而面临限制.
氧气空缺是Ga2O3设备中噪音的主要来源.
现有的Ga2O3探测器在需要高灵敏度和低噪音的实际应用中扎.

研究的目的:

通过优化制造参数来抑制Ga2O3探测器中的氧气空缺.
为了研究减少三乙 (TEG) 流量对探测器噪声特征的影响.
为太阳盲紫外线成像开发高性能Ga2O3基光探测器阵列.

主要方法:

在Ga2O3增长期间,系统地减少了三乙 (TEG) 流量,从200平方厘米减少到50平方厘米.
有特征的噪声电流,从洛伦兹式过渡到闪类型的噪声.
测量检测器性能指标,包括灵敏度和响应时间.

主要成果:

通过减少TEG流量,成功地抑制了氧气空缺.
噪声电流从0.15nA降低到1.01pA,这是一个显著的减少.
实现了高灵敏度 (3.72 A/W) 和快速响应时间 (1.6/13 ms).
通过改进的Ga2O3探测器证明了太阳盲探测能力.

结论:

优化TEG流量对于减轻Ga2O3探测器中的噪声至关重要.
低噪音的Ga2O3探测器可以实现先进的紫外线成像应用.
开发了一个8x8光电探测器阵列,能够实时检测紫外线,并对高达3米的距离进行成像.

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