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题名: Polystyrene nanoparticles enhance photo responsivity of graphene photodetector
作者: Li GX(李恭新); Xie SX(解双喜); Wang WX(王文学); Wang YC(王越超); Liu LQ(刘连庆)
作者部门: 机器人学研究室
刊名: Optical Materials Express
ISSN号: 2159-3930
出版日期: 2016
卷号: 6, 期号:2, 页码:296-302
收录类别: SCI ; EI
产权排序: 1
项目资助者: National Natural Science Foundation of China (Grant No. 61327014, Grant No. 61375107), and the CAS/SAFEA International Partnership Program for Creative Research Teams.
摘要: Graphene has attracted much attention as a candidate for plane material in optoelectronics and optoelectronic devices for its exceptional physical properties. However, its low photo responsivity has limited its development and applications in photodetectors. In this paper, we propose a new method to enhance the photo responsivity of a graphene photodetector by integrating Polystyrene Nanoparticles (PSNs) into the graphene photodetector, dropping them onto the graphene surface using a glass micropipette. The results show that the photocurrent of the graphene photodetector is linearly enhanced with increasing PSNs concentration, and achieves a maximum enhancement by up to 71% with 500 nm PSNs under the incident light of 470 nm. The enhancement of the photo responsivity varies as the light wavelength changes with PSNs of the same diameter and it is demonstrated by simulation that the photo responsivity is maximally enhanced when the wavelength of the incident light is equal to the diameter of the PSNs. Our approach not only promotes the development of graphene in optoelectronics, but also has the potential for multicolor photodetection.
语种: 英语
WOS记录号: WOS:000372039500001
WOS标题词: Science & Technology ; Technology ; Physical Sciences
类目[WOS]: Materials Science, Multidisciplinary ; Optics
关键词[WOS]: LIGHT ; TRANSPARENT ; TRANSISTORS ; ELECTRODES ; GATE
研究领域[WOS]: Materials Science ; Optics
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内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/17648
Appears in Collections:机器人学研究室_期刊论文

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Recommended Citation:
Li GX,Xie SX,Wang WX,et al. Polystyrene nanoparticles enhance photo responsivity of graphene photodetector[J]. Optical Materials Express,2016,6(2):296-302.
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