Multimechanism Synergistic Photodetectors with Ultrabroad Spectrum Response from 375 nm to 10 mu m

doi:10.1002/advs.201901050

CORC > 上海技术物理研究所 > 中国科学院上海技术物理研究所 > 上海技物所

	Multimechanism Synergistic Photodetectors with Ultrabroad Spectrum Response from 375 nm to 10 mu m
	Wang Xudong; Shen Hong; Chen Yan; Wu Guangjian; Wang Peng; Xia Hui; Lin Tie; Zhou Peng; Hu Weida; Meng Xiangjian
刊名	ADVANCED SCIENCE
	2019
卷号	6 期号:15 页码:1901050
关键词	2D materials ferroelectric infrared detectors pyroelectric ultrabroad spectrum response
DOI	10.1002/advs.201901050
英文摘要	Broadening the spectral range of photodetectors is an essential topic in photonics. Traditional photodetectors are widely used; however, the realization of ultrabroad spectrum photodetectors remains a challenge. Here, a photodetector constructed by a hybrid quasi-freestanding structure of organic ferroelectric poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) with molybdenum disulfide (MoS2) is demonstrated. The 2D MoS2 with the ultrathin structure brings a great benefit of heat dissipation for the pyroelectric infrared detector. By coupling the mechanisms of pyroelectrics, photoconductor, and phototransistor effect, an ultrabroad spectrum response ranging from ultraviolet (375 nm) to long-wavelength infrared (10 mu m) is achieved. In the 2.76-10 mu m spectral range, the 2D MoS2 is used to read and amplify the photocurrent induced by the pyroelectric effect of P(VDF-TrFE). The sensitivity of the device in this spectral range is greatly enhanced. A high responsivity of 140 mA W-1, an on/off photocurrent switching ratio up to 10(3), and a quick response of 5.5 ms are achieved. Moreover, the ferroelectric polarization field dramatically enhances the photoconductive properties of MoS2 and restrains dark current and noise. This approach constitutes a reliable route toward realizing high-performance photodetectors with a remarkable ultrabroad spectrum response, high responsivity, low power consumption, and room-temperature operation.
WOS记录号	WOS:000479063700018
内容类型	期刊论文
源URL	[http://202.127.2.71:8080/handle/181331/12380]
专题	上海技术物理研究所_上海技物所
推荐引用方式 GB/T 7714	Wang Xudong,Shen Hong,Chen Yan,et al. Multimechanism Synergistic Photodetectors with Ultrabroad Spectrum Response from 375 nm to 10 mu m[J]. ADVANCED SCIENCE,2019,6(15):1901050.
APA	Wang Xudong.,Shen Hong.,Chen Yan.,Wu Guangjian.,Wang Peng.,...&Wang Jianlu.(2019).Multimechanism Synergistic Photodetectors with Ultrabroad Spectrum Response from 375 nm to 10 mu m.ADVANCED SCIENCE,6(15),1901050.
MLA	Wang Xudong,et al."Multimechanism Synergistic Photodetectors with Ultrabroad Spectrum Response from 375 nm to 10 mu m".ADVANCED SCIENCE 6.15(2019):1901050.