电位滴定法
基质(化学分析)
分辨率(逻辑)
电压
化学
材料科学
光电子学
电极
计算机科学
电气工程
工程类
色谱法
人工智能
物理化学
作者
Huihui Ren,Dingwei Li,Min Wang,Yingjie Tang,Yitong Chen,Qianqian Wang,Qi Huang,Chengchen Guo,Bowen Zhu
标识
DOI:10.1109/iedm45741.2023.10413737
摘要
High-resolution mapping of pH can provide vital physiological information in environmental and biomedical applications. In this work, we develop active-matrix potentiometric sensors that integrate pH sensing and mapping capabilities by utilizing field-effect transistor (FET) sensors based on solution-processed oxide semiconductors. The FET sensors exhibit excellent electrical and pH sensing performance, characterized by high uniformity, low operating voltage (0.05 V), near-Nemst-limit sensitivity (59.4 mV/pH), and minimal drift rate (L2 mV/h). These characteristics enable the successful integration of a 16 × 16 active-matrix FET sensor array for high-resolution pH mapping. Furthermore, a transparent FET sensor array is achieved for bio-interface applications, where both the morphology and cellular microenvironment of living cells can be monitored. Our study presents an effective alternative approach beyond CMOS to realize active-matrix pH sensor arrays.
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