The development of high-performance non-fullerene acceptors with extended exciton diffusion lengths has positioned the sequential layer-by-layer(LBL)solution processing technique as a promising approach for fabricatin...The development of high-performance non-fullerene acceptors with extended exciton diffusion lengths has positioned the sequential layer-by-layer(LBL)solution processing technique as a promising approach for fabricating high-performance and large-area organic solar cells(OSCs).This method allows for the independent dissolution and deposition of donor and acceptor materials,enabling precise morphology control.In this review,we provide a comprehensive overview of the LBL processing technique,focusing on the morphology of the active layer.The swelling intercalation phase-separation(SIPS)model is introduced as the mainstream theory of morphology evolution,with a detailed discussion on vertical phase separation.We summarize recent strategies for morphology optimization.Additionally,we review the progress in LBL-based large-area device and module fabrication,as well as green processing approaches.Finally,we highlight current challenges and future prospects,paving the way for the commercialization of LBL-processed OSCs.展开更多
Through the analysis of roundness error separation technique of three-point method and based on the invariability and periodicity of the geometrical characteristic of measured round contour, a new matrix algorithm, wh...Through the analysis of roundness error separation technique of three-point method and based on the invariability and periodicity of the geometrical characteristic of measured round contour, a new matrix algorithm, which can be used to solve directly the roundness of the measured round contour without Fourier transform, is presented. On the basis of the research and analysis of the rotation error movement which is separated by using the three-point method, a mathematical equation is derived, which can be used to separate the eccentric motion of least square center of measured round contour and the pure rotation motion error of spindle in rotation motion. The correctness of this method is validated by means of simulation.展开更多
我国西北干旱缺水地区的某低品位磁铁矿石全铁品位为14.87%、磁性铁品位为9.27%,为了探究全干法分选工艺的可行性进行了选矿工艺研究。结果表明,矿石中主要铁矿物为磁铁矿,脉石矿物为石英;磁铁矿与脉石矿物间的嵌布关系紧密,但界限清晰...我国西北干旱缺水地区的某低品位磁铁矿石全铁品位为14.87%、磁性铁品位为9.27%,为了探究全干法分选工艺的可行性进行了选矿工艺研究。结果表明,矿石中主要铁矿物为磁铁矿,脉石矿物为石英;磁铁矿与脉石矿物间的嵌布关系紧密,但界限清晰,多以单晶或集合体的形式填充在脉石矿物粒间,单体解离总体较容易;矿石在碎至粒度为-10 mm情况下干式磁力预选(278.66 k A/m)、预选精矿在高压辊磨机闭路辊压至-3 mm情况下进行粗粉干式磁选(358.28 k A/m)、然后进行两阶段磨矿(-0.074 mm分别为55%和80%)各1粗1精干式弱磁选(分别为278.66、199.04 k A/m),获得了全铁品位65.64%、全铁回收率57.34%、磁性铁回收率88.06%的铁精矿,该指标较经典磁选流程对应指标分别低0.24、2.26、8.29个百分点。研究结果表明,该矿石采用全干法分选工艺是可行的,对缺水地区类似铁矿石资源的开发具有指导意义,但全干法分选设备的台时效率有较大提升空间。展开更多
基金Project(22408404)supported by the National Natural Science Foundation of China。
文摘The development of high-performance non-fullerene acceptors with extended exciton diffusion lengths has positioned the sequential layer-by-layer(LBL)solution processing technique as a promising approach for fabricating high-performance and large-area organic solar cells(OSCs).This method allows for the independent dissolution and deposition of donor and acceptor materials,enabling precise morphology control.In this review,we provide a comprehensive overview of the LBL processing technique,focusing on the morphology of the active layer.The swelling intercalation phase-separation(SIPS)model is introduced as the mainstream theory of morphology evolution,with a detailed discussion on vertical phase separation.We summarize recent strategies for morphology optimization.Additionally,we review the progress in LBL-based large-area device and module fabrication,as well as green processing approaches.Finally,we highlight current challenges and future prospects,paving the way for the commercialization of LBL-processed OSCs.
基金Henan Innovation Project for University Prominent Research Talents (2004KYCX006)Ph.D.Inital Foundation of Henan University of Science &Techonologythe Natural Science Foundation of Henan Education Agency (2008A460007)
文摘Through the analysis of roundness error separation technique of three-point method and based on the invariability and periodicity of the geometrical characteristic of measured round contour, a new matrix algorithm, which can be used to solve directly the roundness of the measured round contour without Fourier transform, is presented. On the basis of the research and analysis of the rotation error movement which is separated by using the three-point method, a mathematical equation is derived, which can be used to separate the eccentric motion of least square center of measured round contour and the pure rotation motion error of spindle in rotation motion. The correctness of this method is validated by means of simulation.
文摘我国西北干旱缺水地区的某低品位磁铁矿石全铁品位为14.87%、磁性铁品位为9.27%,为了探究全干法分选工艺的可行性进行了选矿工艺研究。结果表明,矿石中主要铁矿物为磁铁矿,脉石矿物为石英;磁铁矿与脉石矿物间的嵌布关系紧密,但界限清晰,多以单晶或集合体的形式填充在脉石矿物粒间,单体解离总体较容易;矿石在碎至粒度为-10 mm情况下干式磁力预选(278.66 k A/m)、预选精矿在高压辊磨机闭路辊压至-3 mm情况下进行粗粉干式磁选(358.28 k A/m)、然后进行两阶段磨矿(-0.074 mm分别为55%和80%)各1粗1精干式弱磁选(分别为278.66、199.04 k A/m),获得了全铁品位65.64%、全铁回收率57.34%、磁性铁回收率88.06%的铁精矿,该指标较经典磁选流程对应指标分别低0.24、2.26、8.29个百分点。研究结果表明,该矿石采用全干法分选工艺是可行的,对缺水地区类似铁矿石资源的开发具有指导意义,但全干法分选设备的台时效率有较大提升空间。
