Nanocrystalline silicon as the light emitting material of a field emission display device

Abstract

A nanocrystalline Si-based paste was successfully tested as the light emitting material in a field emission display test device that employed a film of carbon nanofibers as the electron source. Stable emission in the 550-850 nm range was obtained at 16 V µm(-1). This relatively low field required for intense cathodoluminescence (CL) from the PSi paste may lead to longer term reliability of both the electron emitting and the light emitting materials, and to lower power consumption. Here we describe the synthesis, characterization, and analyses of the light emitting nanostructured Si paste and the electron emitting C nanofibers used for building the device, including x-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Raman spectroscopy. The corresponding spectra and field emission curves are also shown and discussed.

Anchoring Mechanism of ZnO Nanoparticles on Graphitic Carbon Nanofiber Surfaces through a Modified Co‐Precipitation Method to Improve Interfacial Contact and Photocatalytic Performance

“…NaOH groups can decompose epoxy groups into ÀONaa nd ÀOH;h ence,m ore hydroxyl groups were generated when the f-CNFs reactedw ith NaOH, supporting the FTIR data. [33,34] The calculated O/C and O/Zn ratios are shown in Table 2. In the O1ss pectra of CNFZA (Figure 6m), the fitted O1s peaks at about 532.37 (O1) and 533.33 eV (O2) are assigned to ÀCÀOH and ÀCOOH/ZnÀOÀH, respectively (Table 3).…”

“…S imilarly, the Zn 2p peaks of CNFZA ( Figure 6e)a t1 022.8 and 1045.87 eV are assigned to the Zn 2p 3/2 and Zn 2p 1/2 ,respectively,i nz inc acetate/salicylate, and those at 1023.46 and 1046.95 eV are from zinc hydroxides. [33,34] The calculated O/C and O/Zn ratios are shown in Table 2. The increasei nO /C values compared to f-CNFs indicated the formation of zinc hydroxides/salicylates.…”

Modeling of Field Emission from Laser Etched Porous Silicon

“…Light emission from porous silicon has been extensively investigated. However, its electron field propagation has also been studied [20,21]. In addition, changes in greenhouse gas emissions due to different porous silicon morphologies have been investigated [22].…”

Synthesis and Characterization of Phosphorus Doped Hydrogenated Silicon Films by Filtered Cathodic Vacuum Arc Technique

“…Microcrystalline silicon (μc-Si), also called nanocrystalline silicon (nc-Si) on the basis of crystal size in many cases is considered as one of the most promising thin-film material. It exhibits unique physical, electronic and optical properties and has varieties of promising technological applications in thin film photovoltaic devices, thin film transistors and image sensors [1][2][3][4] etc. ncSi thin film has a two-phase structure consisting of nc-Si embedded in a matrix of amorphous silicon.…”