自组装裂纹金属网络应用于光寻址电位传感器以优化光电转换效率

IF 4.5 3区 化学 Q1 Chemical Engineering Journal of Electroanalytical Chemistry Pub Date : 2023-09-16 DOI:10.1016/j.jelechem.2023.117792
Yinghao Chen , Shibin Liu , Jiezhang Luo , Wenbo Zhao , Guifang Li , Yongqian Du , Jie Tan , Yue Tan , Yun Zhang
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引用次数: 0

摘要

光寻址电位传感器(LAPS)是一种基于光寻址半导体场效应的生化传感器。为了提高基于LAPS的化学成像系统的空间分辨率,采用金属网络抑制串扰。在本研究中,提出了裂纹金属网络(CMN)来缩小电极覆盖并优化光电转换效率。以胶体膜上的裂纹图案为模板,通过磁控溅射在衬底表面制备裂纹金属网。带有裂纹金属网络的LAPS具有令人满意的传感器性能和一定的空间分辨率提高。同时,裂纹金属网的覆盖率显著降低至8.9%,相对透过率显著提高至90.95%,与光电流的提高相对应。结果表明,在可接受的空间分辨率下,裂纹金属网络有效地增加了光电流大小。
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Self-assembly crack metallic network applied on light-addressable potentiometric sensor for optimizing photoelectric conversion efficiency

Light-addressable potentiometric sensor (LAPS) is a kind of biochemical sensor based on semiconductor field effect addressed by light. In order to improve spatial resolution of chemical imaging system based on LAPS, metallic network is applied to suppress crosstalk. In this study, crack metallic network (CMN) is proposed to shrink electrode coverage and optimize photoelectric conversion efficiency. The crack pattern on colloidal film is used as template and crack metallic network is prepared on substrate surface by magnetron sputtering. LAPS with crack metallic network has a satisfactory sensor performance and a certain improvement of spatial resolution. Meanwhile, the coverage of crack metallic network remarkably reduces to 8.9 % and relative optical transmittance significantly increases to 90.95 %, corresponding to the photocurrent improvement. The results indicate crack metallic network effectively increases photocurrent magnitude under an acceptable spatial resolution.

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来源期刊
Journal of Electroanalytical Chemistry
Journal of Electroanalytical Chemistry Chemical Engineering-General Chemical Engineering
CiteScore
7.50
自引率
6.70%
发文量
912
审稿时长
>12 weeks
期刊介绍: The Journal of Electroanalytical Chemistry is the foremost international journal devoted to the interdisciplinary subject of electrochemistry in all its aspects, theoretical as well as applied. Electrochemistry is a wide ranging area that is in a state of continuous evolution. Rather than compiling a long list of topics covered by the Journal, the editors would like to draw particular attention to the key issues of novelty, topicality and quality. Papers should present new and interesting electrochemical science in a way that is accessible to the reader. The presentation and discussion should be at a level that is consistent with the international status of the Journal. Reports describing the application of well-established techniques to problems that are essentially technical will not be accepted. Similarly, papers that report observations but fail to provide adequate interpretation will be rejected by the Editors. Papers dealing with technical electrochemistry should be submitted to other specialist journals unless the authors can show that their work provides substantially new insights into electrochemical processes.
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