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Interfacial Voids Trigger Carbon-Based, All-Inorganic cs Pb IBr2 Perovskite Solar Cells with Photovoltage Exceeding 1.33 V

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Nano-Micro Letters 2020年第7期12卷 121-134页

作者： Weidong Zhu Zeyang Zhang Dandan Chen Wenming Chai Dazheng Chen Jincheng Zhang Chunfu Zhang Yue Hao State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology and Shaanxi Joint Key Laboratory of Graphene School of MicroelectronicsXidian UniversityXi’an 710071People’s Republic of China College of Science Xi’an Shiyou UniversityXi’an 710065ShaanxiPeople’s Republic of China

A novel interface design is proposed for carbon-based,all-inorganic csPbIBr2 perovskite solar cells(PScs)by introducing interfacial voids between TiO2 electron transport layer and csPbIBr2 *** with the general interfacial engineering strategies,this design exempts any extra modification layer in final *** importantly,the interfacial voids produced by thermal decomposition of 2-phenylethylammonium iodide trigger three beneficial e ***,they promote the light scattering in csPbIBr2 film and thereby boost absorption ability of the resulting csPbIBr2 ***,they suppress recombination of charge carriers and thus reduce dark saturation current density(J0)of the ***,interfacial voids enlarge built-in potential(Vbi)of the PScs,awarding increased driving force for dissociating photo-generated charge ***,the PSC yields the optimized e ciency of 10.20%coupled with an open-circuit voltage(Voc)of 1.338 *** Voc achieved herein represents the best value among csPbIBr2 PScs reported ***,the non-encapsulated PScs exhibit an excellent stability against light,thermal,and humidity stresses,since it remains^97%or^94%of its initial e ciency after being heated at 85℃for 12 h or stored in ambient atmosphere with relative humidity of 30–40%for 60 days,respectively.

关键词： All-inorganic perovskite solar cells cs Pb IBr2 Photovoltage Interfacial engineering Stability

Exploration of High-Harmonic Generation from the cs2 Molecule by the Lewenstein Method in Two-Color Circularly Polarized Laser Field

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Chinese Physics Letters 2017年第1期34卷 65-68页

作者：张宏丹郭静史岩杜慧刘海风黄旭日刘学深景俊 Institute of Atomic and Molecular Physics Jilin UniversityChangehun 130012 Institute of Theoretical Chemistry Jilin UniversityChangchun 130012 National Center of Quality Supervision and Inspection of Automobile Spare Parts Changchun 130012

The high harmonic generation (HHG) from the cs2 molecule in intense laser fields is investigated using the extended Lewenstein method. The initial state is the highest-occupied molecular orbital of the cs2 molecule, which can be well described by Gaussian wave packet using GAMESS-UK package. Compared with the case of the elliptical laser, the HHG can be extended in two-color circularly polarized laser field. The time-frequency analysis and classical electron trajectory as well as the ionization yield curve are also presented to further explain the underlying mechanism. After adding a static electric field on the z-direction, the single quantum path control is realized and the supercontinuum spectra are obtained. Moreover, an isolated 110 as pulse can be obtained by superposing the harmonics from 130th to 180th order.

关键词： Exploration of High-Harmonic Generation from the cs2 Molecule by the Lewenstein Method in Two-Color Circularly Polarized Laser Field cs

Theory for superconductivity in alkali chromium arsenides A2Cr3As3 (A = K, Rb, cs)

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Science Bulletin 2017年第3期62卷 208-211页

作者： Yi Zhou Chao Cao Fu-Chun Zhang Department of Physics Zhejiang University Hangzhou 310027 China Collaborative Innovation Center of Advanced Microstructures Nanjing 210093 China Department of Physics Hangzhou Normal University Hangzhou 310036 China

Recently,CrAs based superconductors have attracted much *** itself is a 3D antiferromagnet(AFM),which becomes superconducting(SC)under modest pressure with T_C^2 K[1].Subsequently,a new family of quasi-lD superconductors A_2Cr_3As_3(A=K,Rb,cs)has been discovered at ambient pressure with T_c up to 6.1 K[2-4].The key building block of

关键词：氧化物高温超导体 Rb cs 砷化物环境压力铬碱 AFM

Structure of Atactic Polystyrene Film Formed from aPS/cs_2 Gel

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Chinese Chemical Letters 1996年第10期7卷 942-943页

作者： Yan Xiang WANG Wen Hui SONG De Yan SHEN(Polymer Physics Laboratory, Institute of Chemistry, Academia Sinica, Beijing 100080) Polymer Physics Laboratory Institute of Chemistry Academia Sinica Beijing 100080

Novel ordered structure was detected in atactic polystyrene(aPS)formed from aPS/cs2 gel,the ordered structure is constructed through stacks of stereoregular segments by accepting TTGG type conformation. Another anomalous phenomenon was that many particles with different shape and size formed on surface of the film, these were some special aggregates with more orderedstructure.

关键词：梗梗 Structure of Atactic Polystyrene Film Formed from aPS/cs2 Gel cs

Population Distribution of Excited States in cs Electrodeless Discharge Lamp

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Chinese Physics Letters 2015年第6期32卷 40-42页

作者：祝传文陶智明陈默刘忠征张晓刚张盛楠陈景标 State Key Laboratory of Advanced Optical Communication System and Network Institute of Quantum Electronics School of Electronics Engineering and Computer Science Peking University Beijing 100871 College of Science Guizhou University of Engineering Science Bijie 551700

We measure the intensity of fluorescence spectral lines of cs atoms in an electrodeless discharge lamp from visible light to the near-infrared region of 400-100Ohm. To build an excited state Faraday anomalous dispersion optical filter, the population ratios between the excited states are calculated by rate equations and the spontaneous transition probabilities. The electrodeless discharge lamp with populations in the excited states can be used to realize the frequency stabilization reference for lasers at multiwavelength and the excited state Faraday anomalous dispersion optical filter for submarine communication applications in blue-green wavelengths to simplify the system.

关键词： Population Distribution of Excited States in cs Electrodeless Discharge Lamp cs

Energy-pooling collisions in Rb-cs vapor mixture Rb(5P_J)+cs(6P_(3/2))→Rb(5S_(1/2))+cs(nl_(J'))

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Chinese Optics Letters 2006年第9期4卷 501-504页

作者：沈异凡戴康穆保霞王淑英崔秀花 Department of Physics Xinjiang University

Rate coefficients for energy-pooling （EP） collisions Rb（5PJ）＋ cs（6P3/2） →Rb（5S1/2）＋ cs（nlJ^1） have been measured. Atoms were excited to Rb（5PJ） and cs（6P3/2） states using two single-mode diode lasers. To isolate the heteronuclear contribution in the fluorescence spectrum, a double-modulation technique has been adopted. The excited-atom density and spatial distribution are mapped by monitoring the absorption of a counterpropagating single-mode diode laser beam, tuned to Rb（5PJ→7S1/2） and cs（6P3/2→8S1/2） transitions respectively, which could be translated parallelly to the pump beams. The excited atom densities are combined with the measured fluorescence ratios to determine cross sections for the EP processes. It was found that Rb（5P1/2）＋cs（6Pa/2） collisions are more efficient than Rb（5Pa/2）＋cs（6P3/2） collisions for populating cs（4F5/2）, while the opposite is true for populating cs（4F7/2）.

关键词： cs nl Energy-pooling collisions in Rb-cs vapor mixture Rb SPJ

PREFERENTIAL SEPARATION OF ALCOHOL FROM AQUEOUS SOLUTION THROUGH HYDROPHILIC MEMBRANES－POLY（ETHYLENEOXIDE）（PEO）／CHITOSAN（cs） BLEND MEMBRANE

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Chinese Chemical Letters 1995年第6期6卷 543-544页

作者： Wang, XP Zhang, FY Shen, ZQ Zhang, YF Lin, RX Zhejiang Univ Dept Polymer Sci & Engn Hangzhou 310027 Peoples R China Zhejiang Univ Dept Chem Hangzhou 310027 Peoples R China

the pervaporation behaviours of aqueous ethanol mixtures though the Poly(etbylene oxide)(PEO)/Chitosan(cs)blend seborane have been *** results show that both cs and PEO/cs membranes preferentially permeate ethanol at lower ethanol concentration in feed, and the selectivity of chitosan membrane toward alcohol can be greatly improved by introducing weter-soluble polymer PEO into chitosan.

关键词： PEO CHITOSAN ETHYLENEOXIDE POLY BLEND ALCOHOL AQUEOUS cs

Quantitative Model for Estimating Soil Erosion Rates Using 137 cs *1

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Pedosphere 1998年第3期8卷 211-220页

作者： YANGHAO GHANGQING 等 InstituteofSoilScience theChineseAcademyofSciencesP.O.Box821Nanjing210008（China） JapanInternational

A quantitative model was developed to relate the amount of 137 cs loss from the soil profile to the rate of soil erosion. According to mass balance model, the depth distribution pattern of 137 cs in the soil profile, the radioactive decay of 137 cs, sampling year and the difference of 137 cs fallout amount among years were taken into consideration. By introducing typical depth distribution functions of 137 cs into the model, detailed equations for the model were got for different soils. The model shows that the rate of soil erosion is mainly controlled by the depth distribution pattern of 137 cs, the year of sampling, and the percentage reduction in total 137 cs. The relationship between the rate of soil loss and 137 cs depletion is neither linear nor logarithmic. The depth distribution pattern of 137 cs is a major factor for estimating the rate of soil loss. Soil erosion rate is directly related with the fraction of 137 cs content near the soil surface. The influences of the radioactive decay of 137 cs, sampling year and 137 cs input fraction are not large compared with others.

关键词： cs model soil erosion rate

THE CRYSTAL STRUCTURE OF A NOVEL TETRANUCLEAR SILVER CLUSTER COMPLEX Ag4(α-C10H7cs2)4（Py）4·2Py

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Science in China,Ser.B 1987年第1期30卷 1-15页

作者：汤卡罗金祥林谢云唐有祺 Institute of Physical Chemistry Peking University

The title compound has been synthesized by the reaction of α-dithionaphthoic acidwith AgNO3 in an organic solvent. The single crystals were obtained by recrystallizingfrom pyridine. We obtained two kinds of crystal with different colours （A and B）, usingdifferent ratios of silver nitrate and α-dithionaphthoic acid （1:2,1:4） in the reactions. The structures of the two kinds of crystal were determined by a single-crystal X-raydiffraction analysis. The crystal （A） belongs to monoclinic space group C2h5-P21/a withunit cell parameters: a = 22.822（4） A, b = 12.803 （4） A, c = 24.444 （7） A, β = 103.90 （2）°V = 6933.14 A3, Z = 4. The crystal （B） belongs to monoclinic space group C2h6-C2/c witha = 29.150 （2） A, b = 12.799 （3） A, c = 24.413 （2） A, β = 130.56 （4）°, V = 6914.38 A3,Z = 4. Both crystals （A） and （B） have the same molecular configuration, but they havedifferent symmetry. In crystal （B）, the molecule possesses a C2 symmetry. This paperreports the structure determination and parameters o

关键词： than Ag AG H7cs2 Py THE CRYSTAL STRUCTURE OF A NOVEL TETRANUCLEAR SILVER CLUSTER COMPLEX Ag4 cs