一种实现任意窄带光谱检测的有机光电探测器通用策略
A universal strategy for narrowband organic photodetectors enabling arbitrary narrow spectrum detection
朱玉 1秦灏 1郭婷婷 1杨艳青 1张哲 1张京 1李明朋 1陈红滨 1吴思敏 1韩蕊蔓 1万相见 1李光辉 1陈永胜2
作者信息
- 1. The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials,Institute of Polymer Chemistry,Tianjin Key Laboratory of Functional Polymer Materials,College of Chemistry,and Renewable Energy Conversion and Storage Center(RECAST),Nankai University,Tianjin 300071,China
- 2. The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials,Institute of Polymer Chemistry,Tianjin Key Laboratory of Functional Polymer Materials,College of Chemistry,and Renewable Energy Conversion and Storage Center(RECAST),Nankai University,Tianjin 300071,China;State Key Laboratory of Elemento-Organic Chemistry,Nankai University,Tianjin 300071,China
- 折叠
摘要
窄带光电探测器因其优异的综合性能,在光谱仪、激光雷达、光通信和监控等关键应用领域广受欢迎.尽管窄带硅基探测器在当前市场上占据主导地位,但其本征刚性、光学带隙固定和尺寸大的特性极大地限制了其在新兴领域的应用,尤其是在柔性和可穿戴光电子领域.在本工作中,我们报道了一种构筑窄带有机光电探测器(OPD)的简单通用策略.该策略通过溶液法将活性层中的给体和受体材料制备成光学调制层(OAL),并集成在OPD上,可实现对任意光谱的检测.利用该策略,我们成功地构筑了以750 nm为中心的窄带OPD,其半峰宽(FWHM)为40nm,光谱响应率为3667,-3 dB截止频率为927 kHz,打破了自驱动窄带OPD的性能记录.值得注意的是,这种新颖的OAL策略在OPD中具有良好的通用性,可以实现对600至1000 nm范围内的任意窄光谱检测,具有FWHM可调(最小步长为2nm)、响应度和探测率高、响应速度快的优势.受益于有机半导体固有的柔性特性,我们构筑了一种柔性且可弯曲的窄带近红外OPD线性阵列,并应用于全向激光雷达上,在无需机械旋转的情况下实现了 360°水平扫描.
Abstract
Narrowband photodetectors(PDs)with re-markable comprehensive performance are extensively in de-mand in critical applications such as spectrometers,light detection and ranging(LiDAR),optical communication,and surveillance.Despite the fact that silicon-based narrowband PDs currently predominate the market,their inherent rigidity,fixed band limitations,and bulky sizes significantly impede their applications in emerging fields,particularly in flexible and wearable optoelectronics.In this work,a facile and uni-versal solution-processed strategy is presented to fabricate narrowband organic PDs(OPDs)that can detect arbitrary narrow spectra,which is realized by introducing an in-dependent organic optical adjusting layer(OAL)comprising the same donor and acceptor within the photoactive film of OPD.With this strategy,we successfully fabricate a narrow-band OPD centered at 750 nm,with a full width at half-maximum(FWHM)of 40 nm,spectral responsivity ratio of 3667,and-3 dB cutoff frequency of 927 kHz,as recorded in self-powered narrowband OPDs.Notably,this novel OAL strategy shows outstanding universality across all OPDs for detecting arbitrary narrow spectra in the range of 600-1000 nm with tunable FWHMs(minimum narrowing step of 2 nm),high responsivity and detectivity,and fast re-sponse speed.Benefiting from the inherent flexibility of or-ganic semiconductors,we fabricate a flexible and bendable narrowband near-infrared OPD linear array for omnidirec-tional LiDAR,realizing a 360° horizontal scan without me-chanical rotation.
关键词
organic photodetector/narrowband organic photo-detector/LiDAR/flexible photodetector/visible-near-infrared narrowband organic photodetectorKey words
organic photodetector/narrowband organic photo-detector/LiDAR/flexible photodetector/visible-near-infrared narrowband organic photodetector引用本文复制引用
基金项目
国家重点研发计划(2022YFA1203304)
Minstry of Science and Technology of China(2022YFB4200400)
Minstry of Science and Technology of China(2019YFA0705900)
国家自然科学基金(21935007)
国家自然科学基金(52025033)
出版年
2024
NETL
NSTL
万方数据