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Science China Chemistry 2024年第1期67卷 323-329页

作者： Daobin yang shuncheng yang Hongqian Wang Lin Xie Pengyu yan Ziyi Ge Zhejiang Engineering Research Center for Energy Optoelectronic Materials and Devices Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China School of Materials Science and Chemical Engineering Ningbo UniversityNingbo 315211China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

The construction of C-N bonds is of great importance in the fields of biology,medicine,chemistry and materials ***,the replacement of organic base from pyridine to piperidine in the Knoevenagel condensation process unexpectedly yields a series of novel organic molecules containing C-N ***,the synthesis method does not require any external transition-metals catalysis,and photo-/***,when the new compound 1b is added as a third component to a well-known binary system of PM6:Y6,the efficiency of the organic solar cell is significantly improved,resulting in an outstanding efficiency of 18.0%,which is one of the highest values reported to date for PM6:Y6-based ternary organic solar cells.

关键词： C-N bonds Knoevenagel condensation cross-coupling reaction third component organic solar cells

19.3% Efficiency ternary organic solar cells enabled by the alkyl side-chain effect of guest non-fullerene acceptors

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Science China Chemistry 2024年第8期67卷 2686-2693页

作者： Hongqian Wang Sijian Wu Daobin yang Xueliang Yu shuncheng yang Pengfei Ding Pengyu yan Zaifei Ma Jianfeng Zhang Ziyi Ge School of Materials Science and Chemical Engineering Ningbo UniversityNingbo 315211China Zhejiang Engineering Research Center for Energy Optoelectronic Materials and Devices Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-dimension MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai 201620China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

The effect of side-chain engineering of conjugated molecules on the morphology and device performance in binary organic solar cells has been widely investigated. However, this relationship has hardly been studied in the guest components of ternary organic solar cells. In this study, a family of non-fullerene guest acceptors, namely XY-3, XY-5 and XY-7, with hydrogen substituent,straight and branched alkyl chains on the bithiophene units, respectively, were designed and synthesized to understand their effects on aggregation properties and device performance. The straight and branched alkyl chains on the bithiophene units result in sightly blue-shifted absorption compared to the hydrogen substituent and the XY-7 demonstrates the most appropriate phase separation scale and the most balanced charge transport. Consequently, the OSCs based on D18:e C9:XY-7 achieve a high shortcircuit current density(JSC) and fill factor(FF), while maintaining the enhancement of the open-circuit voltage(VOC) achieving an efficiency of 19.32%, exceeding those of D18:e C9, D18:e C9:XY-3, D18:e C9:XY-5(PCE:18.28%, 19.04%, 18.75%, respectively). These results highlight that the side-chain engineering of Y series non-fullerene acceptors as the guest acceptors has great potential in optimizing morphology properties and promoting photovoltaic performance.

关键词： organic solar cells side chain engineering ternary strategy non-fullerene energy losses

Atomic structure and collision dynamics with highly charged ions

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Chinese Physics B 2022年第9期31卷 13-40页

作者： Xinwen Ma Shaofeng Zhang Weiqiang Wen Zhongkui Huang Zhimin Hu Dalong Guo Junwen Gao Bennaceur Najjari Shenyue Xu shuncheng yan Ke Yao Ruitian Zhang Yong Gao Xiaolong Zhu Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province College of Physics and Electronic EngineeringNorthwest Normal UniversityLanzhou 730070China Key Laboratory of Radiation Physics and Technology of the Ministry of Education Sichuan UniversityChengdu 610064China Department of Physics Hangzhou Normal UniversityHangzhou 311121China Shanghai EBIT Laboratory Key Laboratory of Nuclear Physics and Ion-Beam Application(MOE)Fudan UniversityShanghai 200433China

The research progresses on the investigations of atomic structure and collision dynamics with highly charged ions based on the heavy ion storage rings and electron ion beam traps in recent 20 years are *** structure part covers test of quantum electrodynamics and electron correlation in strong Coulomb field studied through dielectronic recombi-nation spectroscopy and VUV/x-ray *** collision dynamics part includes charge exchange dynamics in ion-atom collisions mainly in Bohr velocity region,ion-induced fragmentation mechanisms of molecules,hydrogen-bound and van de Waals bound clusters,interference,and phase information observed in ion-atom/molecule *** this achievements,two aspects of theoretical studies related to low energy and relativistic energy collisions are *** applications of data relevant to key atomic processes like dielectronic recombination and charge exchanges involving highly charged ions are *** the end of this review,some future prospects of research related to highly charged ions are proposed.

关键词： highly charged ion atomic structure collision dynamics quantum electrodynamics fragmentation mechanisms relativistic effects electron correlation

Direct Observation of Interatomic Relaxation Processes in neon Dimers by Electron-impact

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IMP & HIRFL Annual Report 2017年第1期 59-60页

作者： yan shuncheng Zhang Pengju Shen Lili Ma Xinwen 不详

We carry out an experimental investigation of Ne dimer fragmentation following a 380 eV electron *** detecting the Ne^(+)-Ne^(+)cation pair and one of the emitted electrons in coincidence,the fingerprint of the interatomic Coulomb Decay(ICD)[1,2]process initiated by the innervalence ionization of Ne is *** is also observed that most of the low-energy electrons resulting from reactions leading to the fragmentation of the neon dimers in two Ne+ions are produced by the ICD[3]*** the collision between an ionizing particle and the molecules comprising biological medium produce intermediate-energy secondary electrons[4],and these electrons further collide with and ionize the molecules in the environment;our results suggest that the ICD evoked by such a secondary electron is an efficient source for low-energy electrons responsible for radiation *** also clarified that the radiative charge transfer(RCT)caused by the double ionization of Ne are the important relaxation mechanisms leading to the dimer fragmentation into Ne^(+)+Ne^(+)in the intermediate-energy electron-impact processes.

关键词： fragmentation Electron relaxation

General overview of the strong projectile-target-core interaction in Ne(e,2e) reaction

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General overview of the strong projectile-target-core intera...

Signatures of the projectile electron-target-core elastic scattering in Ar(e,2e) reactions at low and intermediate impact energies

第十六届全国原子与分子物理学术会议

作者： yan shuncheng,Ma Xinwen,Zhang Pengju,Xu Shenyue

We investigated the single ionization of Ne(2p) in collision with electron by measuring the momentum distribution of the recoil ions[1].It has been found that a noticeable number of recoil ions carry large longitudina...

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Signatures of the projectile electron-target-core elastic sc...

4 Atomic Physics——4 - 1 Image of Emitted Electrons in Transfer Ionization in Proton-neon Collision at Intermediate Energy

第十六届全国原子与分子物理学术会议

作者： Zhang Pengju,Ma Xinwen,yan shuncheng,Xu Shenyue

The momentum distributions of the recoil ions Ar in Ar(e,2e) reactions were obtained at incident electron energies from 80 eV to 220 eV by using the reaction microscope[1].The contributions of large longitudinal momen...

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IMP & HIRFL Annual Report 2012年第1期 199-199,201页

作者： Feng Wentian Ma Xinwen Zhu Xiaolong Zhang Shaofeng Liu Huiping Li Bin yan shuncheng Xu Shenyue Zhang Ruitian Zhang Pengju Guo Dalong

Atomic Physics—State-selective Single Electron Capture by O3d- Ions on He and H2

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IMP & HIRFL Annual Report 2011年第1期 173-173,175页

作者： Zhu Xiaolong Ma Xinwen Zhang Shaofeng Feng Wentian Liu Huiping Qian Dongbin Zhang Daeheng Li Bin Wen Weiqiang Zhang Pengju yan shuncheng Wang Qian Guo Dalong

Orientation Effect in Ar Dimer Fragmentation by Ne^(8+) Ion Impact

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IMP & HIRFL Annual Report 2018年第1期 65-66页

作者： Zhu Xiaolong yan shuncheng Feng Wentian Ma Xinwen Chuai Xiaoya Guo Dalong Gao Yong Zhang Ruitian Zhang Pengju Zhang Shaofeng Zhao Dongmei Xu Shenyue Wang Hanbing Huang Zhongkui Qian Dongbin 不详

The experiment was carried out using the Reaction Microscope mounted at the 320 kV platform for multidisciplinary research with highly charged ions at the Institute of Modern Physics,CAS[1,2].For reaction channel of(Ar2)^(2+)→Ar^(+)+Ar^(+),the kinetic energy release(KER)distribution clearly shows two *** left peak locates at 3.7 eV approximately,and the right one lies at about 5.3 *** the classical reflection approximation KER/(Z1-Z2)=R,the internuclear distance R can be *** find that the corresponding internuclear distance of the left peak is 3.8˚A,which is the equilibrium internuclear distance of the Ar2 *** indicates that coulomb explosion takes place immediately after the double ionization process,without the involvement of the geometry change of the cluster ***,the left peak dominantly arises from two-site double ionization.

关键词： mounted double approximate

4-17 Sequential and Nonsequential Dissociation of (CO2)3+ by Heavy Ion Impact

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IMP & HIRFL Annual Report 2014年第1期 194-195页

作者： yan shuncheng Zhu Xiaolong Li Bin Ma Xinwen 不详

We performed the CO2 fragmentation experiment in Reaction Microscope, aiming to distinguish the variousdissociation mechanisms of (CO2)3+ions. By coincidently detecting the C+/O+/O+ ions, the Newton plot representingthe momentum relation among the three ions[1], as well as the Kinetic Energy Release (KER) distributionof sequential dissociation (which is the sum of the kinetic energies of all fragment ions), are *** displayed in Fig. 1, there are two parts in Newton plot, the bright areas represent the C+ ion taking smallkinetic energy and two O+ ions flying back to back approximately.

关键词： Sequential Nonsequential Dissociation