Wang Shalong, Zou Yousheng, Shan Qingsong, Xue Jie, Dong Yuhui, Gu Yu, Song Jizhong
Institute of Optoelectronics & Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science & Technology Nanjing 210094 China
RSC Adv. 2018 Oct 1;8(59):33666-33673. doi: 10.1039/c8ra06555a. eCollection 2018 Sep 28.
Wearable photodetectors (PDs) have attracted extensive attention from both scientific and industrial areas due to intrinsic detection abilities as well as promising applications in flexible, intelligent, and portable fields. However, most of the existing PDs have rigid planar or bulky structures which cannot fully meet the demands of these unique occasions. Here, we present a highly flexible, omnidirectional PD based on ZnO nanowire (NW) networks. ZnO NW network-based PDs exhibit the imageable level performance with an on/off ratio of about 10. Importantly, a ZnO NW network can be assembled onto wire-shaped substrates to construct omnidirectional PDs. As a result, the wire-shaped PDs have excellent flexibility, a large light on/off ratio larger than 10, and 360° no blind angle detecting. Besides, they exhibit extraordinary stability against bending and irradiation. These results demonstrate a novel strategy for building wire-shaped optoelectronic devices through a NW network structure, which is highly promising for future smart and wearable applications.
可穿戴光电探测器（PDs）因其固有的探测能力以及在柔性、智能和便携式领域的广阔应用前景，已引起科学界和工业界的广泛关注。然而，现有的大多数PDs具有刚性平面或笨重的结构，无法完全满足这些特殊场合的需求。在此，我们展示了一种基于氧化锌纳米线（NW）网络的高柔性、全向PD。基于氧化锌NW网络的PDs具有约10的开/关比，呈现出可成像水平的性能。重要的是，氧化锌NW网络可以组装到线状基板上以构建全向PD。因此，线状PDs具有出色的柔韧性、大于10的大光开/关比以及360°无盲区探测能力。此外，它们在抗弯曲和抗辐照方面表现出非凡的稳定性。这些结果展示了一种通过NW网络结构构建线状光电器件的新策略，这对未来的智能和可穿戴应用极具前景。
