A graphene-modified long-range surface plasmon resonance sensor chip
A surface plasmon and sensor chip technology, applied in the measurement of phase influence characteristics, etc., can solve problems such as unclear dependence, and achieve the effects of stable response signal characteristics, simple preparation, and high sensitivity
Active Publication Date: 2022-06-03
YANSHAN UNIV
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[0024] A graphene modified long-range surface plasmon resonance sensor chip, using the excitation wavelength of 532nm. like
[0026]
[0028] In addition,
[0029]
[0031]
[0036] As shown in FIG. 6, when the sensitivity of the sensing layer changes, the electric field strength changes. show that the invention works
[0039]
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Abstract
The invention relates to a graphene-modified long-range surface plasmon resonance sensor chip, which belongs to the field of measurement technology, and more specifically relates to the field of sensor chip technology, including a sensor chip substrate, the sensor chip substrate is a high refractive index prism, and the sensor A dielectric Cytop layer and a semiconductor TDBC film are sequentially plated on the top of the chip substrate, and a graphene layer is coated on the semiconductor TDBC film. The sensitivity of the present invention can be up to 3243 RIU ‑1 , enabling the sensor to realize fast, high-sensitivity, and stable response signal characteristics to material molecules.
Description
A graphene-modified long-range surface plasmon resonance sensor chip technical field The present invention relates to a kind of long-range surface plasmon resonance sensor chip of graphene modification, belong to measurement technology field, more specifically to the technical field of sensor chips. Background technique In recent years, long-range surface plasmon resonance sensors have been widely used in environmental detection, medical diagnosis, biological analysis, etc. have developed rapidly. In general, many long-range surface plasmon resonance sensors are widely based on metal excitation surface plasmons. A typical long-range surface plasmon resonance sensor configuration consists of a prism-dielectric Cytop layer-metal layer- The composition of the sensing layer, when the refractive index of the sensing layer changes, will cause a shift in the reflection curve. surface plasmon resonance Elephant can be thought of as an optical phenomenon that affects the...
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IPC IPC(8): G01N21/41
CPCG01N21/41
Inventor 王书涛刘娜程琪逄博
Owner YANSHAN UNIV
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