Condensed Matter Physics
光栅效应
PhotogatingA mechanism where light absorption in a material generates charge carriers that are trapped at the interface, creating an internal electric field that modulates the channel conductivity of a field-effect transistor. / 一种机制，其中材料中的光吸收产生被界面捕获的电荷载体，从而产生内部电场来调制场效应晶体管的通道电导。
- Knowledge type
- 物理设备
- First proposed or discovered
- Proposer
- Turkey Farm member
- Creator
- 农场主
- Last updated
- 2026-11-08 18:05:29
Sub-knowledge points
Charge carrier generationInterface trappingField-effect modulation
Higher-order knowledge points
PhotoconductivityOptoelectronic devicesField-effect transistors
Main parameters and performance indicators
Carrier generation rate: Determined by light intensity and absorption coefficientTrapping time: Duration carriers remain localized at the interfaceGate capacitance: Modulates the sensitivity of the device to trapped charge
Open problems
Precise control of trap density and energy levelsUnderstanding long-term stability and fatigue mechanisms
Related literature
ranked by community starsPhotogating rather than photoinjection drives photoresponse enhancement in azo-dye-coated few-layer MoS2 FETsOpen source
Related products and links
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Creation and modification trail
1 recordsRecord title: Photogating.
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