COMPUTERS AND ELECTRONICS IN AGRICULTURE
·
2025
·
IF 8.9
Xianbao Xu,Bingxiong Wang,Zhuangzhuang Du,Zhuangzhuang Bai,Shuaixing Wang,Cong Wang,Daoliang Li
Dissolved oxygen is crucial in aquaculture, as it directly affects the health and survival of aquatic organisms. With increasing demand for detailed environmental data to enable three-dimensional monitoring, the use of lightweight, compact sensors in underwater mobile devices has become essential. In this study, a flexible dissolved oxygen sensor was developed, and the sensor features a compact, two-electrode array, encapsulated in PDMS to provide flexibility and secure attachment. A multi-electrolytic cell array structure amplifies the current signal from the sensing electrodes. Efficient encapsulation of the electrodes and electrolyte prevents displacement by water flow, ensuring stable and reliable detection performance. The results demonstrate the sensor’s stability, with a detection error of less than 0.2 compared to commercial sensors. The mean absolute error across four different aqueous environments was 0.083. Moreover, the sensor maintained excellent performance over a 14-day testing period. We also successfully integrated the sensor into a bionic robotic fish, enabling three-dimensional detection of dissolved oxygen in the environment. This research advances the development of compact, high-performance underwater sensors, particularly for applications in aquaculture.
研究领域:
环境科学
·
生物工程
✓ 已验证
产品关联
DOI
高影响因子
Nano-Micro Letters
·
2021
·Vol. 13
·期 1
·1-11
·
IF 16.419
Li La,Liu Weijia,Jiang Kai,Chen Di,Qu Fengyu,Shen Guozhen
Flexible Zn-ion hybrid micro-supercapacitors (MSCs) array was fabricated with Ti 3 C 2 T x as the cathode via laser direct writing method, which present ultrastability up to 50,000 cycles after in-situ annealed treatment.
A digital timer driven by the obtained single MSC under bending state, together with a flexible LED displayer of the “TiC” logo lighted by the MSC arrays under twisting, crimping and winding conditions demonstrate the great potential application of the MSCs in integrated wearable electronics.
研究领域:
材料科学
·
能源存储技术
·
柔性电子学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED MATERIALS
·
2023
·Vol. 35
·期 24
·2300242
·
IF 29.4
Guocai Liu,Wei Wen,Zhiyuan Zhao,Xin Huang,Yifan Li,Mingcong Qin,Zhichao Pan,Yunlong Guo,Yunqi Liu
Human sensory receptors enable the real world to be perceived effortlessly. Hence, massive efforts have been devoted to the development of bionic receptors capable of identifying objects. Unfortunately, most of the existing devices are limited to single sensory emulation and are established on solid-state electronic technologies, which are incompatible with the biological reactions occurring in electrolyte media. Here, an iontronic tactile-gustatory receptor using an all-polymer electrochemical transistor (AECT) is presented. The sensor is biocompatible with the operation voltage of 0.1 V, which is 1 to 2 orders lower than those of reported values. By this study, one receptor is able to accurately recognize various objects perceived by the human tactile and gustatory system without complex circuitry. Additionally, to promote its further application, flexible AECT arrays with channel length of 2 µm and density of 104 167 transistors cm −2 (yield of 97%) are fabricated, 1 to 5 orders higher than those of related works. Finally, a flexible integrated network for electrocardiogram recording is successfully constructed. This study moves a step forward toward state-of-the-art bionic sensors.
研究领域:
材料科学
·
生物医学工程
·
传感器技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano Energy
·
2023
·
IF 17.6
Tao Wang,Daming Zheng,Karol Vegso,Nada Mrkyvkova,Peter Siffalovic,Xiaocong Yuan,Michael G. Somekh,Laurent Coolen,Thierry Pauporte,Feng Fu
Metal halide perovskites are attracting increasing attention as photodetectors (PDs) materials due to their excellent photoelectric properties. However, integrating perovskite to realize high-resolution perovskite pixel arrays remains critical to enable practical devices. Herein, we demonstrate a high-responsivity and stable 10 × 10 flexible PDs array based on formamidinium-based quasi-2D Ruddlesden-Popper (BA) 2 FAPb 2 I 7 (n = 2) (BA= butylammonium, C 4 H 9 NH 3 + ) perovskite elements for image sensing. The high-performance (BA) 2 FAPb 2 I 7 arrays are synthesized on a polyethylene terephthalate (PET) flexible substrate , on a large scale, high quality, and controllable manner by introducing Au nanoparticles to enhance film quality upon the annealing process and recrystallization by applying formamidinium chloride (FACl) post-treatment to reduce perovskite film defects, combined with an innovative SiO 2 -assisted hydrophilic and hydrophobic surface treatment strategy. The prepared flexible PDs arrays show excellent optoelectronic properties with high responsivity (5.9 A W −1 ), a detectivity of 8.2 × 10 12 Jones, large on/off current ratio (up to 3 × 10 4 ), ultimate response speed (12.8 μs/10.1 μs), and wide spectral response range. In addition, the device shows outstanding mechanical stability under severe bending (θ = 120°) and excellent folding durability after thousands of bending cycles. It also exhibits excellent environmental stability with only a slight degradation of photoresponse after 100 days of storage under the ambient environment. Finally, the integrated flexible PDs arrays can be used as an effective visible light image sensor with good spatial resolution, paving a multifunctional and competitive way for future wearable sensors and artificial vision systems. One-sentence summary Low-dimensional halide perovskite layers pixelized on a polyethylene terephthalate (PET) flexible substrate provide high performance photodetectors.
研究领域:
材料科学
·
光电子学
·
纳米技术
·
成像技术
·
可穿戴设备
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）