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| 1 | Thickness Uniformity Adjustment of Inkjet Printed Light-emitting Polymer Films by Solvent Mixture显示文摘在这份报纸,厚度一致性(9,9-di-n-octylfluorene ) poly,由打印的 inkjet 有图案的电影被溶剂混合物的使用改进(与有更低的轻快的另一溶剂,有更高的轻快,更高的表面精力和更低的粘性的溶剂降低表面精力和更高的粘性) 。poly 打印的 inkjet (9,9-di-n-octylfluorene ) 的厚度拍摄的一般水准从 ca 被增加。30 nm 到 ca。100 nm 当溶剂混合物被使用而不是纯 chlorobenzene 时。更完全, PFO 电影与象咖啡戒指效果形成的剖面图一样的凹面透镜被形成而不是原来的电影。这改进被强烈 Marangoni 流动的联合在早在在溶剂混合形成的以后的弄干过程弄干过程和弱互补流动解释。有图案(9,9-di-n-octylfluorene ) poly,电影与改进电子性质被用于 electroluminescence 设备的制造。有大约 80% 有效轻射出的区域的象素的数组被获得。 | Rubo Xing Tengling Ye Yan Ding Zicheng Ding Dongge Ma Yanchun Han | 2013 | Chinese Journal of Chemistry2013，31，11： | 8 |
| 2 | Edge-functionalized graphene quantum dots as a thickness-insensitive cathode interlayer for polymer solar cells显示文摘厚度感觉迟钝的阴极夹层(CIL ) 为大区域的聚合物太阳能电池(PSC ) 是必要的,在哪个厚度变化是不可避免的。这些 CIL 材料典型地基于 n 类型是结合的聚合物 / 分子脊梁,它在 visible/near-infrared (NIR ) 显示出强壮的轻吸收区域。这由活跃的层防碍日光吸收并且败坏设备效率。在这研究,我们与高光的透明性作为厚度感觉迟钝的 CIL 在边与铵碘化物(GQD-NI ) 开发了 graphene 量点 functionalized。GQD-NI 的外部铵碘化物组与阴极形成了需要的界面的偶极子减少工作功能。graphene 有 ca 的一种侧面的尺寸的 GQD-NI 的基础飞机。3 nm 表明了 3.56 晴 ' 耀 C 摥愠灰潲捡 ? 獩愠杲慵汢? 桴 ? 潭瑳攠獳湥楴污猠整 ? 湩瀠潲楶楤杮瀠牥潳慮楬敺 ? 敭楤楣敮琠? 桴 ? 潰異慬楴湯 ? | Han Xu Lu Zhang Zicheng Ding Junli Hu Jun Liu Yichun Liu | 2018 | Nano Research2018，11，8： | 3 |
| 3 | Green‑Solvent Processed Blade‑Coating Organic Solar Cells with an Efficiency Approaching 19%Enabled by Alkyl‑Tailored Acceptors显示文摘Power-conversion-efficiencies(PCEs)of organic solar cells(OSCs)in laboratory,normally processed by spin-coating technology with toxic halogenated solvents,have reached over 19%.However,there is usually a marked PCE drop when the bladecoating and/or green-solvents toward large-scale printing are used instead,which hampers the practical development of OSCs.Here,a new series of N-alkyl-tailored small molecule acceptors named YR-SeNF with a same molecular main backbone are developed by combining selenium-fused central-core and naphthalene-fused endgroup.Thanks to the N-alkyl engineering,NIR-absorbing YR-SeNF series show different crystallinity,packing patterns,and miscibility with polymeric donor.The studies exhibit that the molecular packing,crystallinity,and vertical distribution of active layer morphologies are well optimized by introducing newly designed guest acceptor associated with tailored N-alkyl chains,providing the improved charge transfer dynamics and stability for the PM6:L8-BO:YRSeNF-based OSCs.As a result,a record-high PCE approaching 19%is achieved in the blade-coating OSCs fabricated from a greensolvent o-xylene with high-boiling point.Notably,ternary OSCs offer robust operating stability under maximum-power-point tracking and well-keep>80%of the initial PCEs for even over 400 h.Our alkyl-tailored guest acceptor strategy provides a unique approach to develop green-solvent and blade-coating processed high-efficiency and operating stable OSCs,which paves a way for industrial development. | Hairui Bai Ruijie Ma Wenyan Su Top Archie Dela Pea Tengfei Li Lingxiao Tang Jie Yang Bin Hu Yilin Wang Zhaozhao Bi Yueling Su Qi Wei Qiang Wu Yuwei Duan Yuxiang Li Jiaying Wu Zicheng Ding Xunfan Liao Yinjuan Huang Chao Gao Guanghao Lu Mingjie Li Weiguo Zhu Gang Li Qunping Fan Wei Ma | 2023 | Nano-Micro Letters2023，15，12： | 1 |
| 4 | Perovskite Solar Cells toward Eco-Friendly Printing显示文摘Eco-friendly printing is important for mass manufacturing of thin-film photovoltaic(PV)devices to preserve human safety and the environment and to reduce energy consumption and capital expense.However,it is challenging for perovskite PVs due to the lack of eco-friendly solvents for ambient fast printing.In this study,we demonstrate for the first time an eco-friendly printing concept for high-performance perovskite solar cells.Both the perovskite and charge transport layers were fabricated from eco-friendly solvents via scalable fast blade coating under ambient conditions.The perovskite dynamic crystallization during blade coating investigated using in situ grazing incidence wide-angle X-ray scattering(GIWAXS)reveals a long sol-gel window prior to phase transformation and a strong interaction between the precursors and the eco-friendly solvents.The insights enable the achievement of high quality coatings for both the perovskite and charge transport layers by controlling film formation during scalable coating.The excellent optoelectronic properties of these coatings translate to a power conversion efficiency of 18.26%for eco-friendly printed solar cells,which is on par with the conventional devices fabricated via spin coating from toxic solvents under inert atmosphere.The eco-friendly printing paradigm presented in this work paves the way for future green and highthroughput fabrication on an industrial scale for perovskite PVs. | Xiaoming Chang Yuanyuan Fan Kui Zhao Junjie Fang Dongle Liu Ming-Chun Tang Dounya Barrit Detlef-MSmilgies Ruipeng Li Jing Lu Jianbo Li Tinghuan Yang Aram Amassian Zicheng Ding Yonghua Chen Shengzhong(Frank)Liu Wei Huang | 2021 | Research2021，，1： | 1 |
| 5 | Dual interfacial engineering for efficient Cs_(2)AgBiBr_(6) based solar cells显示文摘The emerging lead-free halide double perovskite solar cells have attracted widespread attentions due to their long-term stability and non-toxicity, but suffer from the low device performance. One efficiencylimiting factor is the improper contacts between the halide double perovskite and anode/cathode electrodes. Here, we improve the efficiency and stability of the bismuth-halide double perovskite based solar cells by a synergistic interface design for both electron and hole transport layers(ETL/HTL). The results show that the modification of the TiO_2 ETL with a thin hydrophobic C60 layer and replacement of the lithium-doped small molecule HTL with an un-doped conjugated polymer lead to higher surface quality of perovskite film and better energy-level alignment at the contacts. As a result, the optimized device shows reduced trap density, suppressed charge recombination and enhanced charge extraction, leading to an increase of 69% in device efficiency. In addition, the device also exhibits superior stability in ambient environment, heat stress and light bias after interface optimization. This work provides an efficient strategy for the device optimization of the emerging lead-free perovskite solar cells. | Tao Luo Yalan Zhang Xiaoming Chang Junjie Fang Tianqi Niu Jing Lu Yuanyuan Fan Zicheng Ding Kui Zhao Shengzhong(Frank)Liu | 2021 | Journal of Energy Chemistry2021，30，2： | 1 |
| 6 | Lead-free molecular one-dimensional perovskite for efficient X-ray detection显示文摘In recent years,great progress has been achieved for organicinorganic halide perovskites due to their excellent optoelectronic properties and stability for photovoltaics,light emitting diodes,and high-energy radiation detection[1-5].One-dimensional(1D)perovskites,as an important derivative of three-dimensional(3D)perovskites,exhibit low exciton dissociation efficiency,which can produce strong quantum confinement and form self-trapping excited state[6],In addition,the hydrophobic properties and the inhibition of ion migration from large organic cations improve the moisture and thermal stability for optoelectronic devices. | Haojin Li Xin Song Chuang Ma Zhuo Xu Nuo Bu Tinghuan Yang Qingyue Cui Lili Gao Zhou Yang Fei Gao Guangtao Zhao Zhaolai Chen Zicheng Ding Kui Zhao Shengzhong(Frank)Liu | 2022 | Journal of Energy Chemistry2022，31，1： | 0 |
| 7 | White Fluorescent Organic Light-Emitting Diodes with 100%Power Conversion显示文摘Energy-efficient lighting sources are desired to provide another solution of carbon emission reduction.White organic light-emitting diodes are promising,because of theoretical internal quantum efficiencies for 100%electric-to-light conversion.However,pure organic fluorescent materials still face a challenge in harvesting triplet excitons for radiation.Herein,we report a white fluorescent organic light-emitting diode having an external quantum efficiency of 30.7%and a power efficiency of 120.2 Im w^(-1).In the single emissive layers,we use blue thermally activated delayed fluorescent emitters to sensitize a yellow fluorescent emitter.Transient photoluminescence and electroluminescence analyses suggest that a blue thermally activated delayed fluorescent molecule with~100%reverse intersystem crossing efficiency and negligible triplet nonradiative rate constant completely converts triplet to singlet,suppressing triplet quenching by a yellow fluorescent emitter and ensuring 100%power conversion. | Dongxue Ding Zicheng Wang Chunbo Duan Chunmiao Han Jing Zhang Shuo Chen Ying Wei Hui Xu | 2023 | Research2023，，1： | 0 |
| 8 | Manipulating active layer morphology of molecular donor/polymer acceptor based organic solar cells through ternary blends显示文摘The development of molecular donor/polymer acceptor blend(MD/PA)-type organic solar cells(OSCs) lags far behind other type OSCs. It is due to the large-size phase separation morphology of MD/PAblend, which results from the high crystallinity of molecular donors. In this article, to suppress the crystallinity of molecular donors, we use ternary blends to develop OSCs based on one polymer acceptor(P-BNBP-f BT) and two molecular donors(DR3 TBDTT and BTR) with similar chemical structures.The ternary OSC exhibits a power conversion efficiency(PCE) of 4.85%, which is higher than those of the binary OSCs(PCE=3.60% or 3.86%). To our best knowledge, it is the first report of ternary MD/PA-type OSCs and this PCE is among the highest for MD/PA-type OSCs reported so far. Compared with the binary blends, the ternary blend exhibits decreased crystalline size and improved face-on orientation of the donors. As a result, the ternary blend exhibits improved and balanced charge mobilities, suppressed charge recombination and increased donor/acceptor interfacial areas, which leads to the higher shortcircuit current density. These results suggest that using ternary blend is an effective strategy to manipulate active layer morphology and enhance photovoltaic performance of MD/PA-type OSCs. | Zijian Zhang Zicheng Ding David J.Jones Wallace W.H.Wong Bin Kan Zhaozhao Bi Xiangjian Wan Wei Ma Yongsheng Chen Xiaojing Long ChuANDong Dou Jun Liu Lixiang Wang | 2018 | Science China Chemistry2018，61，8： | 0 |
| 9 | A simple structure copolymer donor based on carboxylated benzodithiophene for polymer solar cells显示文摘The design and development of low-cost and efficient photovoltaic materials remain a major challenge for the research and application of polymer solar cells(PSCs).Therefore,developing efficient photovoltaic polymers with simple structure and easy preparation has become an important research topic.Here we report a facilely synthesized electron-donating polymer X1 with a simple chemical structure,which is composed of carboxylated benzo[1,2-b:4,5-b′]dithiophene(BDT)and thiophene unit.The carboxylate substituents on the BDT unit endowed the polymer with appropriate solubility,low-lying highest occupied molecular orbital(HOMO)energy level,and superior absorption.The PSCs based on X1 as the donor showed a high power conversion efficiency of 16.6%,with a remarkable short-circuit current density of 27.07 m A cm^(-2).These results demonstrated that X1 is a highly promising candidate for low-cost and efficient PSCs.Furthermore,this study revealed the potential of carboxylated BDT as an effective building block in the research and development of high-performance photovoltaic materials. | Xiaochen Wang Rui Zhao Zicheng Ding Shengzhong(Frank)Liu Yongfang Li | 2022 | Science China Chemistry2022，65，9： | 0 |
| 10 | High-efficiency organic solar cells processed from a halogen-free solvent system显示文摘The use of non-halogenated solvents for the green manufacture of high-efficiency organic solar cells(OSCs)is important for their future application.However,the power conversion efficiency(PCE)of the non-halogenated solvent processed OSCs is generally lower than their halogenated counterpart due to the poor film microstructure caused by the solubility issue.Herein,we propose a halogen-free solvent system to optimize film microstructure of the photovoltaic blend based on the polymer donor D18and small-molecule acceptor(SMA)L8-BO towards high-efficiency OSCs.The solvent system is consisted of a main solvent carbon disulfide and an additive paraxylene,where the former ensures the good solution-processability and promotes the solution aggregation of L8-BO,and the latter can finely control the phase-separation process by selectively dissolving the SMA.This solvent combination robustly produces a high-quality active layer,i.e.,the bicontinuous networks of donor and acceptor with nano-sized phase-separation and strongπ-πstacking.With the effective charge generation,transport and collection,the resulting device from the non-halogenated solvent system shows a high PCE of 17.50%,which is comparable to that of the device prepared from the halogenated solvent chloroform(ca.17.11%).This article proposes a new strategy for the green fabrication of high-efficiency OSCs to accelerate their industrialization. | Yueling Su Zicheng Ding Rui Zhang Weibing Tang Wenliang Huang Zhichao Wang Kui Zhao Xiaochen Wang Shengzhong(Frank)Liu Yongfang Li | 2023 | Science China Chemistry2023，66，8： | 0 |
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