Publications by authors named "Shou-jie He"
Pure Mg Cathode for Highly Efficient Single-Layer Organic Light-Emitting Diodes.
ACS Appl Mater Interfaces
January 2025
Highly efficient single-layer organic light-emitting diodes (OLEDs) are demonstrated by using a pure Mg cathode that is seeded with a small amount of Ag nucleation sites. Bis(4-phenylthieno[3,2-]pyridinato-,C2')(acetylacetonate)iridium(III) (PO-01)-doped devices with three-, two-, and one-region doping configurations exhibit maximum external quantum efficiency (EQE) values of 22.8%, 21.
View Article and Find Full Text PDFConnecting electrodes play a crucial role to assist charge injection into the adjacent electroluminescent units in tandem organic light-emitting diodes (OLEDs). In this study, we demonstrate that Mg:Ag alloy is an effective connecting electrode for bottom- and top-emitting tandem OLEDs. Optical cavity design and simulation are also conducted to predict the luminance of tandem OLEDs.
View Article and Find Full Text PDF[Investigation on Spectral Characteristics of Micro-Gap Dielectric Barrier Uniform Discharge in Air].
Guang Pu Xue Yu Guang Pu Fen Xi
October 2015
The plasmas generated by dielectric barrier discharge in atmospheric pressure air have wide application prospect in industry. In order to study generation condition and mechanism, the dielectric barrier uniform discharge in atmospheric pressure air has been studied experimentally with a micro-gap discharge device. Results of electrical characteristics indicate that it exist several current pulses with short width in half period of the applied voltage at a low voltage, a large number of micro-discharge filaments are observed.
View Article and Find Full Text PDFWhite organic light emitting diodes (WOLEDs) is becoming a new platform technology for a range of applications such as flat-panel displays, solid-state lightings etc., and are under intensive research. For general solid-state illumination applications, a WOLED's color rendering index (CRI) and correlated color temperature (CCT) are two crucial parameters.
View Article and Find Full Text PDFNonradiative Auger recombination and radiative exciplex emissions at organic-organic heterojunctions are found to be mediated by the nature of the majority charge carrier. The Auger recombination is dominant when the heterojunction is electron rich, the exciplex emission is dominant when the heterojunction is hole rich, and both Auger recombination and exciplex emission are present when the heterojunction is charge balanced.
View Article and Find Full Text PDF[The optical characteristics of hollow cathode discharge striations in nitrogen].
Guang Pu Xue Yu Guang Pu Fen Xi
January 2014
The characteristics of striations in cylindrical hollow cathode discharge were investigated experimentally. The spectra of striations were measured at a pressure of 20 Pa in a discharge of 1.3 mA, in which the main spectra are the emission spectrum lines of the N2 first positive band (B3pi(g)-->A3pi(u)) and second positive band system (C3pi(u)-->B3pi(g)).
View Article and Find Full Text PDF[Spectroscopic diagnosis of striation in hollow cathode discharge].
Guang Pu Xue Yu Guang Pu Fen Xi
March 2011
The characteristics of striations in cylindrical hollow cathode discharge were investigated experimentally. The emission intensity and spectra of striations were measured, and the spatial characteristics of electron excitation temperature and relative electron density were calculated. It is shown that the emission intensity, the electron excitation temperature and the electron density appear as a periodic structure.
View Article and Find Full Text PDF[Blackbody radiation of cavitation luminescence from glycerin].
Guang Pu Xue Yu Guang Pu Fen Xi
March 2010
An improved conical bubble sonoluminescence U-tube was built. Using this setup, the spectra and light pulses of conical bubble luminescence in glycerin were detected. Results show that the spectra are continuum, which are well fitted by blackbody radiation.
View Article and Find Full Text PDF[The light pulses and spectra of straight tube conical bubble sonoluminescence in glycol].
Guang Pu Xue Yu Guang Pu Fen Xi
November 2008
Based on the U-tube, a new type of sonoluminescence apparatus-conical bubble sonoluminescence straight tube apparatus was set up, and the structures and operations were described detailedly. Using the apparatus, the ultrabright cavitation luminescence was obtained in glycol solution. The light pulses of conical bubble sonoluminescence were detected, results show the half width is about 80 micros that is much longer than the results by ultrasound, which should be caused by the fact that the conical bubble can obtain more energy from the flow than the bubbles from the ultrasound.
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