基于 Bi2O2S/GO 复合材料的柔性自供电光电化学型光电探测器,Journal of Materials Chemistry C

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基于 Bi2O2S/GO 复合材料的柔性自供电光电化学型光电探测器
Journal of Materials Chemistry C ( IF 5.7 ) Pub Date : 2023-04-25 , DOI: 10.1039/d3tc01045g
Xinzhe Yan ₁ , Baolong Shi ₁ , Huyue Cao ₁ , Zhengshan Tian ₂ , Chaoqing Dai ₁ , Wei Liu ₁ , Qin Yang ₃ , Yueyue Wang ₁

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柔性光电探测器（PD）以其耐磨、可弯曲等优点在环境监测、图像传感和自供电集成电子器件等领域引起了广泛关注。因此，在这项工作中，基于准固态电解质和氧硫化铋（Bi ₂ O ₂ S）/氧化石墨烯（GO）复合结构构建了光电化学（PEC）光电探测器。该检测器使用简单的方法制造，比基于液体电解质的光电检测器更方便使用。此外，与单一的 Bi ₂ O ₂S纳米片，复合材料表现出更优异的自供电能力和机械性能。光电化学测试表明，在0 V偏置电压下，复合材料的光电流密度达到4 μA cm ^-2，约为单一材料的6倍。此外，以不同角度弯曲1000秒后，基于准固态电解质的Bi ₂ O _{2 S/GO光电探测器的光电流几乎没有衰减。}结果表明，基于Bi ₂ O ₂ S/GO的柔性光电化学光电探测器即使在弯曲条件下也表现出稳健的光电性能，并在长期光电流测试中表现出优异的稳定性。因此，毕₂ O₂ S/GO是一种在光电探测器领域具有优异性能和巨大应用潜力的候选材料。

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Flexible self-powered photoelectrochemical-type photodetectors based on Bi2O2S/GO composites

Flexible photodetectors (PDs) have attracted great attention in the fields of environmental monitoring, image sensing and self-powered integrated electronic devices due to their advantages of wearability and bendability. Therefore, in this work a photoelectrochemical (PEC) photodetector was constructed based on a quasi-solid-state electrolyte and a bismuth oxysulfide (Bi₂O₂S)/graphene oxide (GO) composite structure. This detector was fabricated using a simple method, and was more convenient to use than a liquid electrolyte-based photodetector. Moreover, compared with the single Bi₂O₂S nanosheets, the composite material exhibited more excellent self-powered ability and mechanical performance. The photoelectrochemical test showed that under 0 V bias voltage, the photocurrent density of the composite material reached 4 μA cm⁻², which was about 6 times that of the single material. In addition, after bending at different angles for 1000 seconds, the photocurrent of the Bi₂O₂S/GO photodetector based on the quasi-solid-state electrolyte hardly decayed. The results show that the flexible photoelectrochemical photodetector based on Bi₂O₂S/GO exhibits robust photoelectric performance even under bending conditions, and demonstrates excellent stability in long-term photocurrent tests. Therefore, Bi₂O₂S/GO is a candidate material with excellent performance and great application potential in the photodetector field.

更新日期：2023-04-25

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