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| 1 | Fulgide Derivative-Based Solid-State Reversible Fluorescent Switches for Advanced Optical Memory显示文摘Solid-state fluorescent switches with reversible luminescence characteristics have attracted considerable attention because of their broad applications in advanced photonics,such as anticounterfeiting inks,optical writing and erasing,and biological imaging.Herein,we have fabricated a solid-state reversible fluorescent switch under alternating UV(365 nm)and visible light treatments based on a fulgide(FUL)-functionalized tetraphenylethylene(TPE)derivative(TPE-FUL)containing a photochromic group FUL and aggregation-induced emission(AIE)luminogen TPE.TPE-FUL exhibited excellent reversible absorption and luminescence owing to the interconversion between open TPE-FUL(O-TPE-FUL)and closed TPE-FUL(C-TPE-FUL).Photophysical and theoretical investigations revealed that the luminescence of O-TPE-FUL is based on the local excited state of the TPE moiety,whereas the fluorescence quenching of C-TPE-FUL originates from the intramolecular charge transfer from the TPE to the FUL moiety.The excellent reversible photoswitching properties of TPE-FUL in the solid state allows for its potential use in advanced optical memory applications,such as anticounterfeiting,optical writing and erasing,and information encryption. | Yang Jiao Runqing Yang Yuchao Luo Leijing Liu Bin Xu Wenjing Tian | 2022 | CCS Chemistry2022，4，1： | 1 |
| 2 | Morphology and Performance of Poly(2-methoxy-5-(20-ethyl- h exyloxy)-p-p he nyle n evi nylene) (M E H-PPV): (6,6)-Phenyl-C61 - butyric Acid Methyl Ester (PCBM) Based Polymer Solar Cells显示文摘聚合物太阳能电池基于合成电影被制作 poly (2-methoxy-5-( 2-ethyl-hexyloxy )-1,4-phenylenevinylene)( MEH-PPV ):有 1:3 , 1:4 和 1:5 的重量混合比率的 fullerene 衍生物( 6,6 ) -phenyl-C61-butyric 酸甲基酉旨( PCBM ),从氯仿( CF )纺纱涂, chlorobenzene ( CB ),并且 o-dichlorobenzene ( ODCB )答案分别地。Photoinduced 电流和设备的力量变换效率(PCE ) 在溶剂上显示出依赖。太阳能电池在 1:5 有最高的 PCE 混合比率。传播电子显微镜学(TEM ) 形态学表明在 MEH-PPV 有一些虚空: PCBM 电影。空数字从 CF 与溶剂减少到 CB 和 ODCB。我们发现虚空被原子力量显微镜学被 TEM 和电影底部方面形态学学习通过电子断层摄影术技术在这些电影的底部定位。费用搬运人运输效率和收集效率应该由于虚空极大地减少,并且这部电影有越多虚空,效率越度减少。从 CF 准备的太阳能电池的 PCE 比从 CB 和 ODCB 准备的太阳能电池的低。MEH-PPV 的空现象: PCBM 基于太阳能电池和方法调查空位置提供一条试验性的证据和研究脑力与高效制作聚合物太阳能电池。 | Leijing Liu Svetlana van Bavel Shanpeng Wen Xiaoniu Yang Joachim Loos | 2013 | Chinese Journal of Chemistry2013，31，6： | 1 |
| 3 | Nanoscale color sensors made on semiconducting multi-wall carbon nanotubes显示文摘亚微米颜色传感器被开发,用碳 nanotubes (CNT ) 。颜色传感器由一连串的二根光电二极管组成与不同光谱回答,使用制作在单个半导体的双墙 CNT 上控制了电的剥离开和没有药的技术。CNT 光电二极管展出内在的女人光谱从 640 ~ 2,100 nm,超过 60 dB 的大线性动态范围,和亚微米象素的回答缩放。这个方法探索多墙 CNT 的唯一的性质,并且可以乐意地为高效颜色传感器数组的大规模制造被使用,当平行多墙 CNT 的数组变得可得到时。 | Nan wei Huixin Huang Yang Liu Leijing Yang Fanglin Wang Huanhuan Xie Yingying Zhang Fei Wei Sheng Wang Lianmao Peng | 2016 | Nano Research2016，9，5： | 0 |
| 4 | Effects of BTA2 as the third component on the charge carrier generation and recombination behavior of PTB7:PC71BM photovoltaic system显示文摘Effects of a benzotriazole(BTA)-based small molecule,BTA2,as the third component on the charge carrier generation and recombination behavior of poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b']dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl]](PTB7):[6,6]-phenyl-C71-butyric acid methyl ester(PC71BM)organic solar cells(OSCs)were investigated by optical simulation of a transfer matrix model(TMM),photo-induced charge extraction by linearly increasing voltage(photo-CELIV)technique,atomic force microscope(AFM),and the Onsager–Braun model analysis.BTA2 is an A_(2)-A_(1)-D-A_(1)-A_(2)-type non-fullerene small molecule with thiazolidine-2,4-dione,BTA,and indacenodithiophene as the terminal acceptor(A_(2)),bridge acceptor(A_(1)),and central donor(D),respectively.The short-circuit current density of the OSCs with BTA2 can be enhanced significantly owing to a complementary absorption spectrum.The optical simulation of TMM shows that the ternary OSCs exhibit higher internal absorption than the traditional binary OSCs without BTA2,resulting in more photogenerated excitons in the ternary OSCs.The photo-CELIV investigation indicates that the ternary OSCs suffer higher charge trap-limited bimolecular recombination than the binary OSCs.AFM images show that BTA2 aggravates the phase separation between the donor and the acceptor,which is disadvantageous to charge carrier transport.The Onsager-Braun model analysis confirms that despite the charge collection efficiency of the ternary OSCs being lower than that of the binary OSCs,the optimized photon absorption and exciton generation processes of the ternary OSCs achieve an increase in photogenerated current and thus improve power conversion efficiency. | Leijing Liu Hao Zhang Bo Xiao Yang Liu Bin Xu Chen Wang Shanpeng Wen Erjun Zhou Gang Chen Chan Im Wenjing Tian | 2021 | Frontiers of Chemical Science and Engineering2021，15，1： | 0 |
| 5 | Charge-carrier photogeneration and extraction dynamics of polymer solar cells probed by a transient photocurrent nearby the regime of the space charge-limited current显示文摘To understand the complex behaviors of photogenerated charge carriers within polymer-based bulk-heterojunction-type solar cells,the charge-carrier photogeneration and extraction dynamics are simultaneously estimated using a transient photocurrent technique under various external-bias voltages,and a wide range of excitation intensities are analyzed.For this purpose,conventional devices with 80 nm thick active layers consisting of a blend of representative P3HT and PTB7 electron-donating polymers and proper electron-accepting fullerene derivatives were used.After the correction for the saturation behavior at a high excitation-intensity range nearby the regime of the space charge-limited current,the incident-photon-density-dependent maximum photocurrent densities at the initial peaks are discussed as the proportional measures of the charge-carrier-photogeneration facility.By comparing the total number of the extracted charge carriers to the total number of the incident photons and the number of the initially photogenerated charge carriers,the external quantum efficiencies as well as the extraction quantum efficiencies of the charge-carrier collection during a laser-pulse-induced transient photocurrent process were obtained.Subsequently,the charge-carrier concentration-dependent mobility values were obtained,and they are discussed in consideration of the additional influences of the charge-carrier losses from the device during the charge-carrier extraction that also affects the photocurrent-trace shape. | Boa Jin Hyunmin Park Yang Liu Leijing Liu Jongdeok An Wenjing Tian Chan Im | 2021 | Frontiers of Chemical Science and Engineering2021，15，1： | 0 |
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