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High alcohol-soluble MoOx gel for interfacial layer in organic solar cells
Jian Xiong,Zhen He,Shiping Zhan,Bingchu Yang,Xiaowen Zhang,Ping Cai,Cong Xu,Xiaogang Xue,Jian Zhang 한국물리학회 2017 Current Applied Physics Vol.17 No.8
Water-free solvent soluble, low-temperature processed metal oxides are important for preparing efficient and stable electronic devices, as well as the convenience in simplifying the device production process. Here we reported a facile approach with the features of low-temperature and solution-based process for the formation of a MoOx (s-MoOx) film as interface layer in polymer solar cells (PSCs). The absorbability, elementary composition, electronic property and surface microstructure of the s-MoOx are investigated in detail by ultravioletevisible spectrophotometer (UVevis), X-ray photoelectron spectrometry (XPS), ultraviolet photo-electron spectrometer (UPS) and atomic force microscopy (AFM). These investigations confirmed that such MoOx xerogel has high solubility in the organic alcohol solvents, such as ethanol and methanol. Meanwhile, this s-MoOx can be applied as the interfacial layer in organic solar cells via a low-temperature treatment (about 100 C) due to its proper physical properties, and a power conversion efficiency (PCE) over 3% was achieved. In addition, the devices with s-MoOx shows excellent air-stability, and the PCE efficiency can maintain about 84% of its initial value after 100 h exposure in air, which is dramatically enhanced comparing with the common devices with PEDOT:PSS layer.
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Libo Yu,Xixiang Tang,Shiping Wei,Yinkun Qiu,Xiashutong Xu,Guangxin Xu,Qilin Wang,Qian Yang 한국미생물학회 2019 The journal of microbiology Vol.57 No.7
A Gram-positive, aerobic, rod-shaped, spore-forming bacterium, designated YLB-03T, with peritrichous flagella was isolated from deep-sea sediment of the Yap Trench at a depth of 4435 m. The bacterium was found to be catalase-positive but oxidase-negative. Growth of this bacterium was observed at 15–50°C (optimum 37°C), pH 5–10.5 (optimum 7), 0–5% NaCl (optimum 1%, w/v) and 0.1–50 MPa (optimum 0.1 MPa). Phylogenetic analysis based on 16S rRNA gene sequences showed that strain YLB-03T was a member of the genus Lysinibacillus. Strain YLB-03T was closely related to Lysinibacillus sinduriensis BLB-1T and Lysinibacillus chungkukjangi 2RL3-2T (98.4%), Lysinibacillus halotolerans LAM- 612T (98.0%), Lysinibacillus telephonicus KT735049T (97.5%), Lysinibacillus endophyticus C9T (97.5%), Lysinibacillus composti NCCP-36T and Lysinibacillus massiliensis 4400831T (97.3%). The ANI and the GGDC DNA-DNA hybridization estimate values between strain YLB-03T and closely related type strains were 73.7–76.3% and 34.7–38.7%, respectively. The principal fatty acids were anteiso-C15:0 and iso-C15:0. The G+C content of the chromosomal DNA was 39.6 mol%. The respiratory quinone was determined to be MK-7. The diagnostic amino acids in the cell wall peptidoglycan contained Lys-Asp (type A4α) and the cell-wall sugars were glucose and xylose. The polar lipids included diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, and an unidentified phospholipid. The combined genotypic and phenotypic data showed that strain YLB-03T represents a novel species within the genus Lysinibacillus, for which the name Lysinibacillus yapensis sp. nov. is proposed, with the type strain YLB-03T (= MCCC 1A12698T = JCM 32871T).
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Congfang Hu,Gaode Geng,Xianxian Liu,Shiping Yang,Xinzi Tang 한국정밀공학회 2023 International Journal of Precision Engineering and Vol.24 No.4
Multistage planetary gear transmission has a large speed ratio, compact structure and large load capacity in engineering practice. However, its vibration affects the performance and reliability of the transmission, especially under a stochastic load condition with different dynamic characteristics. In this context, the dynamic behavior of a four-stage planetary gear transmission system is investigated using the lumped-parameter model. First, the translation-torsion dynamics model of the multistage planetary gear transmission system is established. Then, the natural frequency and the effect of meshing stiffness and component mass on the natural frequency are investigated. Further, the dynamics equation of the planetary gear transmission system is solved by the Runge–Kutta method, and the damped dynamic response with an equivalent load and the dynamic responses with stochastic loads are analyzed. Notably, the displacement amplitude increases with the increment of the stochastic load. In addition, the frequency domain response under 50%, 75%, 100% and 120% of the equivalent torque are studied. Lastly, a test rig is built for a yaw drive in a wind turbine with the four-stage planetary gear transmission system, and the vibration of the ring gear of the second stage and output shaft are tested with 50%, 75%, 100% and 120% of equivalent load. The experiment results verify the correctness of the theoretical dynamic model of the multistage planetary gear transmission system.
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