Fabrication and Properties of the Backlight Field Emission Unit with Meshy Bottom Electrode

2011 ◽  
Vol 204-210 ◽  
pp. 152-155
Author(s):  
Chao Wu ◽  
Wen Jie Zhang

Carbon nanotubes (CNTs) had good field emission ability and were adopted to form the cold cathode. The backlight field emission unit (BFEU) with CNTs as field emitter was designed and fabricated, and the detailed manufacture process was also given. The flat soda-lime glass was used as substrate plate. With the photolithography process, the indium tin oxide thin film covered on the cathode plate surface was divided into bar stripes to form the meshy bottom electrode for improving the field emission properties of CNT emitters. The sealed BFEU demonstrated better field emission performance, high luminance brightness. With the simple fabrication process, the total manufacture cost was also low.

2010 ◽  
Vol 428-429 ◽  
pp. 436-439 ◽  
Author(s):  
Yu Kui Li ◽  
Cong Li

By using the thick soda-lime glass plate and the flat thin glass, the connecting plates were formed easily. The carbon nanotube materials were prepared to form the field emitters. The simple small diode structure field emission display device with connecting plate was developed. The detailed fabrication technology for the whole device was also presented. The sealing of the vacuum room was performed by means of glass frit and the gas in the vacuum room could be evacuated out through the exhaust tube. The developed diode structure FED sample exhibited large field emission current, better field emission properties and image display performance.


2010 ◽  
Vol 168-170 ◽  
pp. 1082-1085
Author(s):  
Feng Ge Wang ◽  
Yu Kui Li

With photolithography process and screen printing technique, the compound cold cathode electrode was developed on the cathode glass plate for improving the field emission ability and emission uniformity of CNT cathode. The compound cold cathode electrode mainly consisted of the indium tin oxide (ITO) blocks which was the divided ITO thin film, the bar silver stripes fabricated by the solidified silver slurry and the cathode insulation layer with good insulation performance. Carbon nanotubes were prepared to form the field emitters, and the diode type field emission display (FED) was fabricated. The manufacture process was also presented in detail. The vacuum sealed FED exhibited better field emission characteristic, low operating voltage and high display brightness.


2011 ◽  
Vol 467-469 ◽  
pp. 1520-1523 ◽  
Author(s):  
Chao Wu ◽  
Xiao Feng Jin

With high-effective screen-printing technique, the diode field emission display (FED) panel with carbon nanotube (CNT) as cathode material was fabricated. For improving the field emission properties, the annular field emitter was developed. The bar cathode indium tin oxide (ITO) electrode was formed by the divided ITO film with the photolithography process. After the sintering process, the printed silver slurry was solidified to form the rectangular ring electrode. The prepared CNT paste was printed to form the cold cathode emitter. Field emission characteristics of sealed FED panel were measured, and the emission image was also presented. A series of low-cost manufacture process was employed in the device fabrication course. The fabricated FED panel exhibited better field emission performance and large emission current.


2011 ◽  
Vol 204-210 ◽  
pp. 156-159
Author(s):  
Chao Wu ◽  
Yan Cui

Using carbon nanotube (CNT) as cathode material, the field emission display (FED) panel with enhanced bar electrode was fabricated. With the photolithography process, the indium tin oxide (ITO) film was divided to form the cathode ITO electrode. The printed silver slurry was sintered to act as the cathode silver electrode, which was prepared on the cathode ITO electrode surface. The insulation layer was also fabricated on the cathode plate. The CNT paste was screen-printed on the surface of cathode ITO electrode and cathode silver electrode to form the field emitter. The detailed fabrication process of FED panel was given, and the sealed FED panel showed better field emission properties. Because of the enhanced bar electrode, the large field emission current was obtained.


2021 ◽  
Vol 16 (6) ◽  
pp. 855-860
Author(s):  
Ji Yong Hwang ◽  
II Tae Kim ◽  
Hyung Wook Choi

To reduce the manufacturing cost of perovskite solar cells, soda-lime glass and transparent conducting oxides such as indium tin oxide and fluorine-doped tin oxide are the most widely used substrates and lighttransmitting electrodes. However, the transmittance spectra of soda-lime glass, indium tin oxide, and fluorinedoped tin oxide show that all light near and below 330 nm is absorbed; thus, with the use of these substrates, light energy near and below 330 nm cannot reach the perovskite light-absorbing layer. It is expected that the overall solar cell can be improved if the wavelength can be adjusted to reach the perovskite solar cell absorbing layer through down-conversion of energy in the optical wavelength band. In this study, a polyvinylidene fluoride transparent film mixed with a ZnGa2O4:Mn phosphor was applied to the incident side of the perovskite solar cell with the intent to increase the light conversion efficiency without changing the internal bandgap energy and structure. By adding a phosphor layer to the external surface of PSC exposed to incident light, the efficiency of the cell was increased by the down-conversion of ultraviolet light (290 nm) to the visible region (509 nm) while maintaining the transmittance. To manufacture the perovskite solar cell, a TiO2-based mesoporous electron transport layer was spin-coated onto the substrate. The perovskite layer used in this experiment was CH3NH3PbI3 and was fabricated on a TiO2 layer. Spiro-OMeTAD solution was spin-coated as a hole-transport layer.


2014 ◽  
Vol 1035 ◽  
pp. 3-6
Author(s):  
Jin Hai Gao ◽  
Zhen Li ◽  
Wu Qing Zhang

The sphere-like diamond microcrystalline-aggregates were fabricated by microwave plasma chemical vapor deposition (MPCVD) method. The ceramic with a Ti metal layer was used as substrates. The fabricated diamond microcrystalline aggregates were evaluated by Raman scattering spectroscopy, x-ray diffraction spectrum (XRD), scanning electron microscopy (SEM). The field emission properties were tested by using a diode structure in a vacuum. A phosphor-coated indium tin oxide (ITO) anode was used for observing and characterizing the field emission. It was found that the sphere-like diamond microcrystalline-aggregates films exhibited good electron emission properties. The turn-on field was only 0.55V/μm, and emission current density as high as 11mA/cm2 was obtained under an applied field of 2.18V/μm for the first operation. After several cycling operations, the field emission tended to stable characteristics of current versus voltage. The stability evolvement and mechanism are investigated relating to microstructure of the sphere-like diamond microcrystalline-aggregates films.


2010 ◽  
Vol 148-149 ◽  
pp. 1327-1330
Author(s):  
Hui Li ◽  
Xiao Gang Zhou ◽  
Chao Yuan ◽  
Gen Sheng Dou

Carbon nanotube used as the cathode material, the diode-type field emission display panel was developed with low-cost screen-printing method and precise photolithography process. The modified CNT field emitter was fabricated for improving the field emission characteristic, and the detailed fabrication process was also presented. The indium-tin-oxide film on the cathode back-plane was divided to form the CNT cathode electrode, and the insulation slurry was screen-printed to form the insulation layer. Field emission characteristic of whole display device was measured. The sealed field emission display panel showed good emission properties and high display image brightness.


2011 ◽  
Vol 382 ◽  
pp. 229-232
Author(s):  
Yan Xia Ma

With screen-printing method, the diode field emission display panel was fabricated. On the cathode back plane, the cross-like cathode electrode structure was developed for improving the field emission properties of field emission display panel. The prepared carbon nanotubes were utilized to form the electron emission sources, and the necessary cathode potential for the carbon nanotube cathode could be conducted by the indium tin oxide stripe. Seen from the fabrication pattern, the divided indium tin oxide stripe was cross-like, but the fabrication surface for the single carbon nanotube cathode pixel was circular. The whole field emission display panel possessed good field emission characteristics.


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