Field effect transistors in precision agriculture

被引：0

作者：

Sudhölter, EJR ^{[1
]}

de Smet, LCPM ^{[1
]}

Zuilhof, H ^{[1
]}

机构：

[1] Wageningen Univ, Organ Chem Lab, NL-6703 HB Wageningen, Netherlands

来源：

Precision Agriculture 05 | 2005年

关键词：

sensor; pH; nutrient; hybrid organic semiconductor field effect transistor; potentiometry; surface modification; organic monolayer;

D O I：

暂无

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The development of field effect transistor (FET) based sensors for the detection of ionic species in solution is described. This development started about 35 years ago with the invention of the ion-sensitive field effect transistor (ISFET) for the detection of solution PH. Later chemically sensitive field effect transistors (CHEMFETs) have been developed for the detection of many different cations and anions. The first CHEMFETs were based on ion-selective membranes deposited physically on the gate oxide of an ISFET. More durable CHEMFETs were made by linking all membrane components covalently. Applications of field effect based sensors are discussed. The possibilities of a new generation of sensors, based on hybrid organic semiconductor field effect transistors (HOSFETs) are described.

引用

页码：23 / 29

页数：7

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