我院师生近期在Crystal Growth & Design、 Solar Energy上发表论文
Jinyang Liu* (刘金养), Qingqing Huang (黄青青,本科生,2012级新能源科学与工程), YongqiangQian(钱永强,本科生,2013级材料物理),Zhigao Huang(黄志高), Fachun Lai (赖发春), LimeiLin(林丽梅), Mingzhu Guo (郭明珠,本科生,2013级材料物理), Weifeng Zheng (郑卫峰), Yan Qu (瞿燕)
Screw Dislocation-Driven Growth of the LayeredSpiral-type SnSe Nanoplates, Crystal Growth & Design, DOI: 10.1021/acs.cgd.5b01708
官网链接:http://pubsdc3.acs.org/doi/full/10.1021/acs.cgd.5b01708
A high degree of control over thickness, size, structure, andsymmetry of two-dimensional layered materials is essential to tune theirchemical and physical properties for applications. Here, we report screwdislocation-driven growth of layered spiral-type SnSe nanoplates withatomically thin helical periodicity for the first time. The spirals are composedof a few connected SnSe layers with decreasing areas; each basal plane has arectangular shape and spirals up layer by layer to the summit center. Theunique structure and growth mode were further confirmed to includeherringbone contours, spiral arms, and hollow cores. In addition, the growthmode can be tuned from screw dislocation-driven growth to layer-by-layergrowth by manipulating the precursor concentration. The results shown heremay provide valuable guidance for the design and growth of uniquenanostructures in SnSe or even other two-dimensional layered materials andpromote their applications.
本网全文下载:Screw Dislocation-Driven Growth of the Layered Sp.pdf
Ruihua Yang(杨睿华,硕士生), Jinyang Liu*(刘金养), Limei Lin(林丽梅), Yan Qu (瞿燕), Weifeng Zheng(郑卫峰),Fachun Lai*(赖发春)
Optical properties and thermal stability of colored solarselective absorbing coatings with double-layer antireflection coatings,Solar Energy125 (2016) 453–459
官网链接:http://www.sciencedirect.com/science/article/pii/S0038092X15006957
Abstract:
Multilayer solar selective absorbing coatings of Cu/Ti/SiO2/Ti/TiO2/SiO2 were designed first and then deposited on quartz substratesusing the magnetron sputtering method. The thicknesses of the individual layers were optimized to achieve high solar absorptance, whilethe colors were designed with the TFCalc optical design software. The colors of the coatings including purple, blue, blue green, yellowgreen and orange yellow were prepared based on the designed parameter. The colored solar selective absorbing coatings exhibit solarabsorptance higher than 0.95 and thermal emissivity lower than 0.09 at 80℃. Furthermore, the thermal stability of the Cu/Ti/SiO2/Ti/TiO2/SiO2 coatings was studied by annealing at high temperature in vacuum and in air for 2 h. The X-ray diffraction, X-ray photoelectronspectroscopy, Raman spectroscopy and spectrophotometry were used to characterize properties of the coatings. The resultsshowed that the multilayer solar selective absorbing coatings were thermally stable at 450℃ in vacuum and 300℃ in air for 2 h, whichmay provide an instruction to design and fabricate high performance colored solar selective absorbing coatings.
本网全文下载:Optical properties and thermal stability of color.pdf