Photolithography-Enabled Au/Si Columnar Array Photoelectrochemical Sensor for High-Performance Nitrite Detection.

Miaotao Li, Zhiwei Chen, Zhangcheng Liu, Xiao Wang, Yang Li, Jinping Ao

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Article in Materials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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6 authors.

Miaotao LiSchool of Integrated Circuits, Jiangnan University, Wuxi 214122, China.

Zhiwei ChenSchool of Integrated Circuits, Jiangnan University, Wuxi 214122, China.

Zhangcheng LiuSchool of Integrated Circuits, Jiangnan University, Wuxi 214122, China.

Xiao WangSchool of Integrated Circuits, Jiangnan University, Wuxi 214122, China.

Yang LiSchool of Integrated Circuits, Jiangnan University, Wuxi 214122, China.

Jinping AoSchool of Integrated Circuits, Jiangnan University, Wuxi 214122, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this work, we demonstrate the fabrication of gold-decorated silicon column array (Au/SiCAs) photoanodes for photoelectrochemical (PEC) nitrite detection. The SiCAs were synthesized on n-type silicon substrates via photolithography and anisotropic etching, after which Au nanoparticles were deposited by magnetron sputtering. The Au/SiCAs photoanodes exhibited a pronounced PEC photocurrent response under the simulated solar irradiation. For nitrite determination, the sensor achieved two broad linear ranges (10-500 μM and 2000-10,000 μM) with corresponding sensitivities of 0.25 and 0.33 μA·μM

Indexed as

nitrite detectionordered silicon column arraysphotoelectrochemical sensorphotolithography and etching

Identifiers

PMID41828188

DOI10.3390/ma19050921

PMCPMC12986442

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