极化场调控的热释电光电探测器：从均匀极化到梯度极化

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关键词：热释电光电子学效应；极化场；梯度极化场；光电传感器；自供能中图分类号：TN366 文献标识码：ADOI： 10.37188/CJL.20250131 CSTR：32170.14.CJL.20250131

Polarization-field-tuned Pyro-phototronic Detectors： From Uniform Polarization to GradientPolarization

QIUXianchun，ZHU Meng，HUANGHe，ZENG Zimeng，WANG Zhaona* （DepartmentofhysicsandAstronomyAppliedOpticsBeijingAreaMajorboratory，KeyLboratoryofMultiscaleSinics， MinistryofEducation，BeijingNormal University，Beijing1Oo875，China） *Corresponding Author，E-mail：zhnwang@bnu.edu.cn

Abstract：Miniaturized，low-power，and high-performance photoelectric sensor isakeyresearch topic inintegrated optoelectronicchipsandintelligentsensors.Particularly，pyro-phototronicdetectors haveemergedasavitalresearch directioninoptoelectronic sensing dueto their self-powered capability，fastresponse，high responsivity，and broad bandwidth.Here，thefundamental principlesofpyro-phototronic efectare elucidated，folowed byanoverview of performanceoptimizationstrategiesandspecializedapplicationsofthis efect invarious junctions-based photodetectors. Subsequently，enhancementof non-uniformpolarization fieldonpyro-phototroniceffectsinPNjunctions isdemonstrated through enhancementmechanismand constructing methodologies forgradientpolarization fields.Basedonthe engineered gradientpolarization，we achieved the PN-junction pyro-phototronicdetectors with superior performances inresponsivityand spectralbandwidth.Finally，weoferinsightintothefuture development of pyro-phototronicdetectors in designprinciples，device architectures，and specificappications.The studies onpolarization-field-tuned photodetectorsofferflexibledesign paradigms for advancing pyro-phototronic sensing，which might significantly accelerate he practical applications of pyro-phototronic detectors in smart sensing，communication andultrafastimaging.

Key words：pyro-phototronic effect；polarization field；gradient polarization field；photodetector；self-power

1引言

光电转换的核心机制涉及光场与物质相互作用，这一过程主要包含光吸收、载流子产生与分离、载流子弛豫和动力学行为、光电流收集四个关键环节。（剩余41041字）