当前位置: X-MOL 学术Sens. Actuators A Phys. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Improving the performance of V2O5/rGO hybrid nanocomposites for photodetector applications
Sensors and Actuators A: Physical ( IF 4.1 ) Pub Date : 2021-09-06 , DOI: 10.1016/j.sna.2021.113073
Shareen Shafique 1 , Shuming Yang 1 , Taimoor Iqbal 2 , Biyao Cheng 1 , Yiming Wang 1 , Haris Sarwar 1 , Yonas Tesfaye Woldu 1 , Peirui Ji 1
Affiliation  

Hybrid nanocomposite photodetectors are ideal systems with substantial applications as promising materials in the field of optoelectronics. In this study, the hydrothermal method was used to hybridise 2D rGO onto 1D V2O5 nanorods to form hybrid nanocomposites with excellent electrical and photoconduction properties. Five different percentages of rGO content were added to V2O5 nanorods to examine the photodetection properties. A comprehensive comparison suggested that the optimal content of rGO intercalated into V2O5 nanorods were determined by gaining maximum photoresponse. The high performance of optimised photodetectors is ascribed to various photoconductive paths, effective generation, and transport along with lower recombination of carriers in devices. For the optimised VG40 photodetectors responsivity and specific detectivity were calculated as 12.6 A/W and 5.78 × 1011 Jones respectively, for 532 nm illumination source at a bias voltage of − 2 V. A closer examination found that the optimised VG40 shows photovoltaic behaviour at 0 V. The excellent device performance of the synergistic effect of rGO is due to improve current generation and transport mechanisms. These results demonstrated a suitable approach for the synthesis of a surfactant or binder-free hybrid nanocomposite for practical photodetection applications.



中文翻译:

提高用于光电探测器应用的 V2O5/rGO 混合纳米复合材料的性能

混合纳米复合光电探测器是理想的系统,作为光电领域的有前途的材料具有大量应用。在这项研究中,水热法用于将 2D rGO 杂化到 1D V 2 O 5纳米棒上,以形成具有优异电导和光导性能的杂化纳米复合材料。将五种不同百分比的 rGO 含量添加到 V 2 O 5纳米棒中以检查光电检测特性。综合比较表明 rGO 插入 V 2 O 5的最佳含量通过获得最大光响应来确定纳米棒。优化的光电探测器的高性能归因于各种光电导路径、有效的生成和传输以及器件中载流子的较低复合。对于优化的 VG40 光电探测器,响应度和比探测度计算为 12.6 A/W 和 5.78 × 10 11 Jones 分别用于偏置电压为 − 2 V 的 532 nm 照明源。仔细检查发现优化的 VG40 在 0 V 下显示光伏行为。 rGO 协同效应的优异器件性能是由于提高了电流产生和运输机制。这些结果证明了一种合适的方法来合成用于实际光电检测应用的表面活性剂或无粘合剂的混合纳米复合材料。

更新日期:2021-09-21
down
wechat
bug