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| 1 | Direct observation of localized surface plasmon field enhancement by Kelvin probe force microscopy显示文摘A surface plasmon(SP)is a fundamental excitation state that exists in metal nanostructures.Over the past several years,the performance of optoelectronic devices has been improved greatly via the SP enhancement effect.In our previous work,the responsivity of GaN ultraviolet detectors was increased by over 30 times when using Ag nanoparticles.However,the physics of the SP enhancement effect has not been established definitely because of the lack of experimental evidence.To reveal the physical origin of this enhancement,Kelvin probe force microscopy(KPFM)was used to observe the SP-induced surface potential reduction in the vicinity of Ag nanoparticles on a GaN epilayer.Under ultraviolet illumination,the localized field enhancement induced by the SP forces the photogenerated electrons to drift close to the Ag nanoparticles,leading to a reduction of the surface potential around the Ag nanoparticles on the GaN epilayer.For an isolated Ag nanoparticle with a diameter of~200 nm,the distribution of the SP localized field is located within 60 nm of the boundary of the Ag nanoparticle.For a dimer of Ag nanoparticles,the localized field enhancement between the nanoparticles was the strongest.The results presented here provide direct experimental proof of the localized field enhancement.These results not only explain the high performance of GaN detectors observed with the use of Ag nanoparticles but also reveal the physical mechanism of SP enhancement in optoelectronic devices,which will help us further understand and improve the performance of SP-based optoelectronic devices in the future. | Da-Bing Li Xiao-Juan Sun Yu-Ping Jia Mark I Stockman Hari P Paudel Hang Song Hong Jiang Zhi-Ming Li | 2017 | Light(Science & Applications)2017，6，1： | 2 |
| 2 | The expression of functional LPS receptor proteins CD14 and toll-like receptor 4 in human corneal cells 显示文摘 | Song P I Abraham T A Park Y | 2001 | Ophthalmology & Visual2001，42，12： | 1 |
| 3 | A Micromodel of New Product Adoption with Heterogeneous and Forward Looking Consumers:Application to the Digital Camera Category显示文摘 | CHINTAGUNTA P | 2003 | Quantitative Marketing and Economics2003，1，： | 1 |
| 4 | Molecular analysis of anthocyanin biosynthetic genes and control of flower coloration by flavonoid 3',5'-hydroxylase(F3'5'H) in Dendrobium moniliforme显示文摘 | Whang S S Um W S Song I J Lim P O Choi K Park K W Kang K W Choi M S Koo J C | 2011 | Plant Biology2011，54，3： | 1 |
| 5 | Investigating the effects of store-brand introduction on retailer demand and pricing behavior显示文摘 | Chintagunta P K Bonfrer A Song I | 2002 | Management Science2002，48，10： | 1 |
| 6 | RNA interference targeting Fas protects mice from fulminant hepatitis显示文摘 | Song E Lee SK Wang I Ince N Ouyang N Min I Chen Shankar P Lieberman J | 2003 | Nat Med2003，9，： | 1 |
| 7 | Stretchable batteries with self-similar serpentine interconnects and integrated wireless re- charging systems 显示文摘 | Xu S Zhang Y H Cho J Lee J W Huang X Jia L Fan J A Su Y W Su J Zhang H Cheng H Lu B Yu C J Chuang C Kim T I Song T Shigeta K Kang S Dagdeviren C Petrov I Braun P V Huang Y Paik U Rogers J A | | Nature Communications0，4，： | 1 |
| 8 | Influence of fluorochrome labeling density on the photobleaching kinetics of fluorescein in microscopy显示文摘 | Song L van Gijlswijk R P Young I T | 1997 | Cytometry1997，27，3： | 1 |
| 9 | Joint relay selection and power allocation for two-way relaying with physical layer network coding显示文摘 | DO T P WANG J S SONG I | 2013 | IEEE Communications Letters2013，17，2： | 1 |
| 10 | Agrobacterium-mediated high-efficiency transformation of creeping hentgrass with herbicide resistance 显示文摘 | Soo J K Lee J Y Kim Y M Yang S S Hwang 0 J Hong N J Kim K M Lee H Y Song P Kim J I | 2007 | Journal of Plant Biology2007，50，5： | 1 |
| 11 | Mechaical properties of an ultrafine grained C-Mn steel processed by warm de显示文摘 | Song R P(mge D Raaabe I) | 2005 | Acta Metallu ''gica2005，53，48： | 1 |
| 12 | Electrical and structural properties of tin-doped indium oxide films deposited by DC sputtering at room temperature 显示文摘 | Song P Shigesato Y Yasui I | 1999 | Jpn J Appl Phys1999，38，： | 1 |
| 13 | Improved interfacial and electrical properties of vanadyl-phthalocyanine metal-insulator-semiconductor devices with silicon nitride as gate insulator 显示文摘 | WANG L J Ll Y P SONG X F et ?i | 2013 | Applied Physics Letters2013，103，24： | 1 |
| 14 | Electrical and structural properties of tin-doped indium oxide films deposited by dc sputtering at room temperature显示文摘 | SONG P K SHIGESATO Y KAMEI M YASUI I | 1999 | Jpn J Appl Phys1999，38，： | 1 |
| 15 | Characterization of soluble dietary fibers from wax gourd(Benincasa hispida)pulp and peel显示文摘 | HONG S P JUN H I SONG G S | 2008 | Food Science and Biotechnology2008，17，4： | 1 |
| 16 | OX40 promotes Bcl-xL and Bcl-2 expression and is essential for long-term survival of CD4 T cells显示文摘 | ROGERS P R SONG J GRAMAGLIA I | 2001 | Immunity2001，15，3： | 1 |
| 17 | Activation of NAD (P)H oxidases by thromboxane A2 receptor uncouples endothelial nitric oxide synthase 显示文摘 | I Zhang M Song P Xu J | 2011 | Artedoscler Thromb Vase Biol2011，31，1： | 1 |
| 18 | OX40 promotes Bcl-xl and Bcl-2 expression and is essential for long term survival of CD4+T cells显示文摘 | Rogers P R Song J Gramaglia I | 2001 | Immunity2001，15，3： | 1 |
| 19 | Evidence- based recommendations for the management of ankylosing spondylitis: systematic literature search of the 3E initiative in rheumatology involving a broad panel of experts and prac- ticingrheumatologists 显示文摘 | Sidiropoulos P I Hatemi G Song I H | 2013 | Rheumatology2013，47，3： | 1 |
| 20 | Role of human copper transporter Ctr1 in the transport of platinum-based antitu- mor agents in cisplatin-sensitive and cisplatin-resistant cells 显示文摘 | Song I S Savaraj N Siddik Z H Liu P | 2004 | Mol Cancer Ther2004，3，12： | 1 |
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