The present study relates to the applicability of silicon nanoparticles as basic component in printing inks for the fabrication of printable electronic devices. It is systematically investigated, how the surface functionalization of silicon nanoparticles with 1-alkenes affects the electrical properties of thin films made of them. Therefore, films of as-prepared silicon nanoparticles with a size of 42 nm as well as freshly etched ones, both terminated with hydrogen, are compared with films of silicon nanoparticles functionalized with n-octene, n-dodecene, allylmercaptan, and allylamine, respectively. It is found, that the activation energy of the electron transport through the films is in the range of 0.5 eV and scales with the polarity of the functionalization.
Silicon nanoparticles Electrical properties Charge transport Hydrosilylation Impedance spectroscopy
This is a preview of subscription content, log in to check access
This project is co-financed by the European Union and is financially supported by the state of North Rhine-Westphalia in Germany.
Murray CB, Kagan NC, Bawendi MG (2000) Synthesis and characterization of monodisperse nanocrystals and close-packed nanocrystal assemblies. Annu Rev Mater Sci 30:545–610CrossRefADSGoogle Scholar
Nelles J, Sendor D, Bertmer M et al (2007a) Surface chemistry of n-octane modified silicon nanoparticles analyzed by IR, 13C CPMAS NMR, EELS, and TGA. J Nanosci Nanotechnol 7:2818–2822CrossRefPubMedGoogle Scholar
Nelles J, Sendor D, Ebbers A et al (2007b) Functionalization of silicon nanoparticles via hydrosilylation with 1-alkenes. Colloid Polym Sci 285:729–736CrossRefGoogle Scholar
Ng CY, Chen TP, Wong JI et al (2007) Performance of silicon nanocrystal non-volatile memory devices under various programming mechanisms. J Nanosci Nanotechnol 7:329–334PubMedGoogle Scholar
Oda S, Huang SY, Salem MA et al (2007) Charge storage and electron/light emission properties of silicon nanocrystals. Physica E 38:59–63CrossRefADSGoogle Scholar
Rafiq MA, Tsuchiya Y, Mizuta H et al (2006) Hopping conduction in size-controlled Si nanocrystals. J Appl Phys 100:014303/1–014303/4Google Scholar
Schmid G, Simon U (2005) Gold nanoparticles: assembly and electrical properties in 1–3 dimensions. Chem Commun 69:7–710Google Scholar
Šimánek E (1981) The temperature dependence of the electrical resistivity of granular metals. Solid State Commun 40:1021–1023CrossRefGoogle Scholar
Simon U, Sanders D, Jockel J et al (2002) Design strategies for multielectrode arrays applicable for high-throughput impedance spectroscopy on novel gas sensor materials. J Comb Chem 4:511–515CrossRefPubMedGoogle Scholar
Steimle RF, Muralidhar R, Rao R et al (2007) Silicon nanocrystal non-volatile memory for embedded memory scaling. Microelectron Reliab 47:585–592CrossRefGoogle Scholar