We obtain several estimates of the essential norms of the products of differen- tiation operators and weighted composition operators between weighted Banach spaces of analytic functions with general weights. As applic...We obtain several estimates of the essential norms of the products of differen- tiation operators and weighted composition operators between weighted Banach spaces of analytic functions with general weights. As applications, we also give estimates of the es- sential norms of weighted composition operators between weighted Banach space of analytic functions and Bloch-type spaces.展开更多
The family of spaces F(p,q,s)was introduced by the author in 1996.Since then,there has been great development in the theory of these spaces,due to the fact that these spaces include many classical function spaces,and ...The family of spaces F(p,q,s)was introduced by the author in 1996.Since then,there has been great development in the theory of these spaces,due to the fact that these spaces include many classical function spaces,and have connections with many other areas of mathematics.In this survey we present some basic properties and recent results on F(p,q,s)spaces.展开更多
We characterize boundedness and compactness of products of differentiation op- erators and weighted composition operators between weighted Banach spaces of analytic functions and weighted Zygmund spaces or weighted Bl...We characterize boundedness and compactness of products of differentiation op- erators and weighted composition operators between weighted Banach spaces of analytic functions and weighted Zygmund spaces or weighted Bloch spaces with general weights.展开更多
We give some characterizations of Carleson measures for Dirichlet type spaces by using Hadamard products.We also give a one-box condition for such Carleson measures.
Silver sulfide(Ag_(2)S)is one of the best photovoltaic materials in terms of elemental composition and both chemical stability and device stability.However,the lack of suitable film processing methods severely limits ...Silver sulfide(Ag_(2)S)is one of the best photovoltaic materials in terms of elemental composition and both chemical stability and device stability.However,the lack of suitable film processing methods severely limits the power conversion efficiency(PCE)improvement of Ag_(2)S-based devices.Here,we propose a specific solvent engineering train for high-quality Ag_(2)S absorber films by precisely tuning the dimethyl sulfoxide(DMSO)/N,Ndimethylformamide(DMF)constituent and post-deposition annealing temperature.A preferential transition in crystal orientation from(012)to(103)crystal planes is found to play a key role in photo-induced carrier behavior.The film surface morphology and grain size are fine-tuned,while the bulk defect concentration and mitigated interface carrier recombination are well suppressed.The optimized simple indium tin oxide(ITO)/Ag_(2)S/2,2’,7,7’-tetrakis(N,N-di-p-methoxyphenylamine)-9,9’-spirobifluorene(Spiro-OMeTAD)/Au device exhibits a significant increase in PCE from 0.77%to 2.57%,which is currently the highest value among the reported literatures of Ag_(2)S solar cells without an electron transport layer.展开更多
文摘We obtain several estimates of the essential norms of the products of differen- tiation operators and weighted composition operators between weighted Banach spaces of analytic functions with general weights. As applications, we also give estimates of the es- sential norms of weighted composition operators between weighted Banach space of analytic functions and Bloch-type spaces.
文摘The family of spaces F(p,q,s)was introduced by the author in 1996.Since then,there has been great development in the theory of these spaces,due to the fact that these spaces include many classical function spaces,and have connections with many other areas of mathematics.In this survey we present some basic properties and recent results on F(p,q,s)spaces.
基金supported by SQU Grant No.IG/SCI/DOMS/16/12The second author was partially supported by NSFC(11720101003)the Project of International Science and Technology Cooperation Innovation Platform in Universities in Guangdong Province(2014KGJHZ007)
文摘We characterize boundedness and compactness of products of differentiation op- erators and weighted composition operators between weighted Banach spaces of analytic functions and weighted Zygmund spaces or weighted Bloch spaces with general weights.
基金supported by the China National Natural Science Foundation(11720101003)。
文摘We give some characterizations of Carleson measures for Dirichlet type spaces by using Hadamard products.We also give a one-box condition for such Carleson measures.
基金financially supported by the National Natural Science Foundation of China(Nos.52472255,52072327,and 22309158)Key Research and Development Project of Henan Province(No.231111232100)+4 种基金Zhongyuan Thousand Talents(Zhongyuan Scholars)Program of Henan Province(No.202101510004)Natural Science Foundation of Henan Province(Nos.242300421715 and 232300420099)Academic Degrees&Graduate Education Reform Project of Henan Province(No.2021SJGLX060Y)Key Scientific Research Projects of Henan Province Higher Education Institutions(Nos.24A150040,23B430009,24B430017,and 24A530008)Technology Research and Development Program of Henan province(No.242102310466).
文摘Silver sulfide(Ag_(2)S)is one of the best photovoltaic materials in terms of elemental composition and both chemical stability and device stability.However,the lack of suitable film processing methods severely limits the power conversion efficiency(PCE)improvement of Ag_(2)S-based devices.Here,we propose a specific solvent engineering train for high-quality Ag_(2)S absorber films by precisely tuning the dimethyl sulfoxide(DMSO)/N,Ndimethylformamide(DMF)constituent and post-deposition annealing temperature.A preferential transition in crystal orientation from(012)to(103)crystal planes is found to play a key role in photo-induced carrier behavior.The film surface morphology and grain size are fine-tuned,while the bulk defect concentration and mitigated interface carrier recombination are well suppressed.The optimized simple indium tin oxide(ITO)/Ag_(2)S/2,2’,7,7’-tetrakis(N,N-di-p-methoxyphenylamine)-9,9’-spirobifluorene(Spiro-OMeTAD)/Au device exhibits a significant increase in PCE from 0.77%to 2.57%,which is currently the highest value among the reported literatures of Ag_(2)S solar cells without an electron transport layer.
