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Highly Responsive Flexible Photodetectors Based on MOVPE Grown Uniform Few-Layer MoS2
ACS Photonics ( IF 6.5 ) Pub Date : 2020-05-21 , DOI: 10.1021/acsphotonics.0c00361 Daniel S. Schneider 1, 2 , Annika Grundmann 3 , Andreas Bablich 4 , Vikram Passi 1, 5 , Satender Kataria 2 , Holger Kalisch 3 , Michael Heuken 3, 6 , Andrei Vescan 3 , Daniel Neumaier 1, 7 , Max C. Lemme 1, 2
ACS Photonics ( IF 6.5 ) Pub Date : 2020-05-21 , DOI: 10.1021/acsphotonics.0c00361 Daniel S. Schneider 1, 2 , Annika Grundmann 3 , Andreas Bablich 4 , Vikram Passi 1, 5 , Satender Kataria 2 , Holger Kalisch 3 , Michael Heuken 3, 6 , Andrei Vescan 3 , Daniel Neumaier 1, 7 , Max C. Lemme 1, 2
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Two-dimensional (2D) transition metal dichalcogenides (TMDCs) are seen as promising candidates for flexible electronic and optoelectronic devices due to their high tensile strength and favorable optical properties. Molybdenum disulfide (MoS2) is a benchmark material for TMDCs, which has already been studied extensively. Here, we report on highly responsive flexible few-layer MoS2 photodetectors based on MoS2 synthesized uniformly for full coverage of 2 in. sapphire wafers using metalorganic vapor-phase epitaxy (MOVPE). Device performance is studied by electro-optical characterization. Electrostatic gating allows tuning both the responsivity between 150 and 920 A/W and the specific detectivity between almost 1012 and 1010 Jones. The measured spectrally resolved responsivities of the detectors suggest applications in the blue-light range, with opportunities for fine-tuning the most sensitive wavelength through gating, as shown through optical simulations. Finally, the flexible devices were bent to demonstrate their suitability for flexible electronics in fields of future Internet of Things and medical devices.
中文翻译：
基于MOVPE生长均匀的少量MoS 2的高响应性柔性光电探测器
二维（2D）过渡金属二硫化碳（TMDC）由于其高拉伸强度和良好的光学性能，被认为是柔性电子和光电设备的有希望的候选者。二硫化钼（MoS 2）是TMDC的基准材料，已经进行了广泛的研究。在这里，我们报道了基于金属有机气相外延（MOVPE）均匀合成的MoS 2的高响应性柔性多层MoS 2光电探测器，该MoS 2均匀地覆盖了2英寸蓝宝石晶片。通过电光表征研究器件性能。静电门控可同时调节150和920 A / W之间的响应度以及几乎10 12和10 10之间的比探测率琼斯 如光学模拟所示，测得的检测器的光谱分辨响应率建议在蓝光范围内应用，并有机会通过选通微调最敏感的波长。最后，挠性设备被弯曲以展示其在未来物联网和医疗设备领域中对挠性电子设备的适用性。
更新日期：2020-05-21
中文翻译：
基于MOVPE生长均匀的少量MoS 2的高响应性柔性光电探测器
二维（2D）过渡金属二硫化碳（TMDC）由于其高拉伸强度和良好的光学性能，被认为是柔性电子和光电设备的有希望的候选者。二硫化钼（MoS 2）是TMDC的基准材料，已经进行了广泛的研究。在这里，我们报道了基于金属有机气相外延（MOVPE）均匀合成的MoS 2的高响应性柔性多层MoS 2光电探测器，该MoS 2均匀地覆盖了2英寸蓝宝石晶片。通过电光表征研究器件性能。静电门控可同时调节150和920 A / W之间的响应度以及几乎10 12和10 10之间的比探测率琼斯 如光学模拟所示，测得的检测器的光谱分辨响应率建议在蓝光范围内应用，并有机会通过选通微调最敏感的波长。最后，挠性设备被弯曲以展示其在未来物联网和医疗设备领域中对挠性电子设备的适用性。
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