Nyiaj nanoparticlesmuaj qhov tshwj xeeb kho qhov muag, hluav taws xob, thiab thermal zog thiab tau muab tso rau hauv cov khoom uas muaj xws li photovoltaics mus rau lom thiab tshuaj lom neeg sensors.Piv txwv muaj xws li cov inks conductive, pastes thiab fillers uas siv nyiaj nanoparticles rau lawv cov hluav taws xob conductivity siab, stability, thiab tsawg sintering kub.Cov ntawv thov ntxiv muaj xws li kev tshuaj ntsuam xyuas molecular thiab cov khoom siv photonic, uas ua kom zoo dua ntawm cov khoom siv kho qhov muag tshiab ntawm cov nanomaterials.Ib daim ntawv thov ntau ntxiv yog kev siv nyiaj nanoparticles rau cov tshuaj tiv thaiv kab mob, thiab ntau cov ntaub ntawv, cov keyboards, cov ntaub qhwv lub qhov txhab, thiab cov khoom siv biomedical tam sim no muaj cov nyiaj nanoparticles uas tsis tu ncua tso tawm qib qis ntawm cov nyiaj ions los tiv thaiv cov kab mob.

Silver NanoparticleOptical Properties

Muaj kev txaus siab rau kev siv cov khoom kho qhov muag ntawm cov nyiaj nanoparticles ua cov khoom siv hauv ntau yam khoom thiab cov khoom siv.Cov nyiaj nanoparticles muaj txiaj ntsig zoo tshaj plaws ntawm kev nqus thiab tawg lub teeb thiab, tsis zoo li ntau cov dyes thiab pigments, muaj cov xim uas nyob ntawm qhov loj thiab cov duab ntawm cov khoom.Kev sib cuam tshuam zoo ntawm cov nyiaj nanoparticles nrog lub teeb tshwm sim vim hais tias cov hluav taws xob conduction ntawm cov hlau nto tau txais kev sib sau ua ke thaum zoo siab los ntawm lub teeb ntawm cov wavelengths tshwj xeeb (Daim duab 2, sab laug).Paub tias yog qhov chaw plasmon resonance (SPR), qhov oscillation no ua rau muaj zog tawg thiab nqus tau zoo.Qhov tseeb, cov nyiaj nanoparticles tuaj yeem muaj txiaj ntsig zoo (scattering + absorption) hla ntu mus txog kaum npaug loj dua li lawv lub cev hla ntu.Qhov muaj zog tawg hla ntu tso cai rau sub 100 nm nanoparticles kom pom tau yooj yim nrog lub tshuab ntsuas pa.Thaum 60 nm nyiaj nanoparticles yog illuminated nrog lub teeb dawb lawv tshwm li kaj xiav point qhov chaw scatterers nyob rau hauv ib tug tsaus nti teb microscope (Daim duab 2, txoj cai).Cov xim xiav ci yog vim qhov SPR uas tau nce siab ntawm 450 nm wavelength.Ib qho khoom tshwj xeeb ntawm cov nyiaj nanoparticles spherical yog tias qhov SPR ncov wavelength no tuaj yeem hloov kho los ntawm 400 nm (violet lub teeb) mus rau 530 nm (lub teeb ntsuab) los ntawm kev hloov cov particle loj thiab lub zos refractive index nyob ze ntawm particle nto.Txawm tias qhov loj dua ntawm SPR ncov wavelength tawm mus rau thaj tsam infrared ntawm electromagnetic spectrum tuaj yeem ua tiav los ntawm kev tsim cov nyiaj nanoparticles nrog cov pas nrig lossis phaj duab.

Silver Nanoparticle Applications

Nyiaj nanoparticlesyog siv nyob rau hauv ntau yam technologies thiab muab tso rau hauv ib tug dav array ntawm cov neeg siv khoom uas coj kom zoo dua ntawm lawv cov kev ntshaw optical, conductive, thiab antibacterial zog.

• Daim Ntawv Thov Kev Ntsuas: Cov nyiaj nanoparticles siv rau hauv biosensors thiab ntau qhov kev soj ntsuam uas cov ntaub ntawv nyiaj nanoparticles tuaj yeem siv los ua cov cim npe lom neeg rau kev tshawb nrhiav ntau.
• Kev siv tshuaj tua kab mob: Cov nyiaj nanoparticles tau muab tso rau hauv khaub ncaws, khau, pleev xim, hnav khaub ncaws, khoom siv, tshuaj pleev ib ce, thiab yas rau lawv cov khoom siv tshuaj tua kab mob.
• Kev Siv Hluav Taws Xob: Cov nyiaj nanoparticles yog siv rau hauv cov khoom siv hluav taws xob thiab sib xyaw ua ke los txhim kho cov thermal thiab hluav taws xob conductivity.
• Kev siv kho qhov muag: Cov nyiaj nanoparticles yog siv los ua kom muaj txiaj ntsig zoo thiab ua kom zoo dua cov khoom siv kho qhov muag nrog rau cov hlau ua kom muaj zog fluorescence (MEF) thiab qhov zoo ntawm Raman scattering (SERS).