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| 1 | Reducing Energy Loss and Morphology Optimization Manipulated by Molecular Geometry Engineering for Hetero-junction Organic Solar Cells显示文摘of main observation and conclusion Molecular geometry engineering is an efective strategy to control the micromorphology and molecularenergy level in organic photovoltaics(OPVs).Two novel copolymers based on alkysilyl-and chloride-functionalied benzodithiophene(BDT)were designed and synthesized for wide bandgap copolymer donor materials in OPVs.It was found that the two copolymers exhited distinctly different proper-ties in active layer when blended with fulerene-fre acceptor T-4.The chloride-functionalited copolymer PBDTCI-TZ2 with deeper molecular energy leveland better coplanar structure induced more ordered aggregation in blend flm.Thus,the device based on PBDTC-TZ exhibits better energy alinmentwith IT-4F and smallr radiative recombination.furthermore,the non-radiative recombination of PBDTCI-TZ.T-4F based device is about 45 mV lowerthan the PBDTS-TZ/T-4F based device,contributing to a lower enery loss(Ein,and a higher open-cicut voltage(Vc).As a resut,the devices based onthe blend of PBDTC-TZ2.IT-4F exhibit a high power conversion efficiency(PCE)of up to 12.2%with a high Vvoe of 0.837 Vv,higher than that of PBDTSi-TZ:IT-4F,of which the PCE is 11.2%with a Voc of 0.781V. | Guodong Xu Huan Rao Xunfan Liao Youdi Zhang Yuming Wang Zhi Xing Ting Hu Licheng Tan Lie Chen Yiwang Chen | 2020 | Chinese Journal of Chemistry2020，38，12： | 4 |
| 2 | Highly stable Al-doped ZnO by ligand-free synthesis as general thickness-insensitive interlayers for organic solar cells显示文摘Highly conductive and dispersible Al-doped ZnO(AZO) nanoparticles(NPs) have been successfully prepared by ligand-free colloidal synthesis at low temperature and stabilization by surfactant-aid including ethanolamine(EA), ethylenediamine(EDA),diethylenetriamine(DETA) and triethylenetetramine(TETA). Due to the strong intermolecular hydrogen-bonding interactions between AZO NPs and the amino groups from surfactants, the inevitable aggregation was suppressed and the surface defect sites were passivated obviously. The existence of electron transfer from the nitrogen of the amino groups to the zinc of AZO,led to a dramatic increase in electrical conductivity. A homogeneous current intensity value up to ~2200 pA for AZO tread by DETA was characterized by conductive atomic force microscopy(C-AFM), which was more superior than that of the reported sol-gel synthesized AZO with the assistance of EA surfactant(refer to 170.7 pA). Furthermore, non-fullerenes solar cells based on PBDB-T:ITIC with AZO-DETA(80 nm) yielded a best device efficiency of 10.7% and kept up prominent PCE exceeding 10%even with more thicker interlayer(95 nm). | Yilin Wang Zhongyou Peng Shuqin Xiao Jia Yang Huanyu Zhou Liqiang Huang Lulu Sun Yinhua Zhou Licheng Tan Yiwang Chen | 2018 | Science China Chemistry2018，61，1： | 2 |
| 3 | A non-wetting and conductive polyethylene dioxothiophene hole transport layer for scalable and flexible perovskite solar cells显示文摘The regulated crystallization of perovskite and highly repeatable preparation are decisive challenges for large-scale flexible perovskite solar cells(PSCs).Herein,we synthesize an oil-soluble poly(3,4-ethylenedioxythiophene)(Oil-PEDOT)as a hole transport layer(HTL).The non-wetting Oil-PEDOT HTL can promote the quality of large-area flexible perovskite films because of its optimized crystallinity and printability.The Oil-PEDOT layer also delivers desirable conductivity and charge transport without a complex doping.Consequently,the flexible PSCs with Oil-PEDOT HTL achieve an efficiency of 19.51%and 16.70%based on 1.05 and 22.50 cm^(2),respectively.Moreover,these large-scale flexible PSCs demonstrate remarkable mechanical robustness,and the efficiency exhibits 93%retention after 7,000 bending cycles.These results show that the Oil-PEDOT is a potentially efficient HTL for fabricating efficient large-scale flexible PSCs. | Chenxiang Gong Lin Zhang Xiangchuan Meng Zhi Xing Li Rao Hongyu Wang Zengqi Huang Licheng Tan Ting Hu Xiaotian Hu Yiwang Chen | 2021 | Science China Chemistry2021，64，5： | 1 |
| 4 | A novel thor maI and pH responsive drug delivery system based on ZnO@PNIPAM hybrid nanoparticles显示文摘 | Jian Liu Licheng Tan Weihua Zhou | 2014 | Materials Sci ence & Engineering C2014，45，： | 1 |
| 5 | Novel poly (butylene succinate-co-lactic acid) copolyesters:Synthesis,crystallization,and enzymatic degradation显示文摘 | Licheng Tan Yiwang Chen Weihua Zhou | | 0，，95： | 1 |
| 6 | Three-gas detection system with IR optical sensor based on NDIRtechnology 显示文摘 | Tan Qiulin Tang Licheng Yang Mingliang | 2015 | Optics and Lasers in Engineering2015，74，： | 1 |
| 7 | Image denoising using the ridgelet bi-frame显示文摘 | TAN Shan JIAO Licheng | 2006 | Journal of the Optical Society of America A:Optics and Image Science and Vision2006，23，10： | 1 |
| 8 | Novel approach to- ward poly (butylene succinate)/single-walled carbon nanotubes nanocomposites with inteffacial-induced crystallization behaviors and mechanical strength 显示文摘 | Tan Licheng Chen Yiwang Zhou Weihua | 2011 | Polymer2011，52，16： | 1 |
| 9 | Novel poly (butylene suecinate-co-lactic acid ) copolyesters : Synthesis, crystallization, and enzymatic degradation显示文摘 | Licheng Tan Yiwang Chen Weihua Zhou | 2010 | Polymer Degradation and Stability2010，95，9： | 1 |
| 10 | Improving Ultraviolet Stability of Perovskite Solar Cells via Singlet Fission Down-Conversion显示文摘The instability of perovskite materials under continuous ultraviolet(UV)light irradiation and high sensitivity in humid environments remain obstacles to future commercialization.Especially,the photovoltaic performance of perovskite solar cells(PVSCs)is prone to decline under UV light exposure for sustained periods of time.However,in conventional methods,preventing UV light from entering PVSCs usually comes at the expense of reducing short circuit photocurrent(Jsc).Herein,the UV stability of PVSCs is modified by in-troducing a singlet fission down-conversion layer 6,13-bis(triisopropylsilylethynyl)pentacene(TIPS-PEN)via one-step anti-solvent method without sacrificing device efficiency.The introduction of down conversion layer can not only improve the Jsc by converting UV light into multiple excitons,but also enhance the open-circuit voltage(Voc)owing to a better matched energy level alignment at the perovskite/spiro-OMeTAD interface.Consequently,the TIPS-PEN incorporated PVSCs attain the champion power conversion effi-ciency(PCE)up to 22.92%accompanied with dramatically increased UV photostability which can retain 80%of its primitive PCE un-der continuous UV light soaking for 150 h.Moreover,the unencapsulated PVSCs with TIPS-PEN exhibit remarkable moisture stability which can sustain over 80%of the initial value under air conditions(50%relative humidity,25℃)after 1000 h. | Yanda zhang Shuqin Xiao Wangping Sheng Jia Yang Licheng Tan Yiwang Chen | 2023 | Chinese Journal of Chemistry2023，41，9： | 1 |
| 11 | Multivariate Statistical Models for Image Denoising in the Wavelet Domain显示文摘 | Shan Tan Licheng Jiao | 2007 | International Journal of Computer Vision2007，，2： | 1 |
| 12 | Dual Triplet Sensitization Strategy for Efficient and Stable Triplet–Triplet Annihilation Upconversion Perovskite Solar Cells显示文摘The novel triplet–triplet annihilation(TTA)upconversion(UC)field of rubrene(Rub)and dibenzotetraphenylperiflanthene(DBP)sensitized by bulk metal halide perovskite,integrated with copper-2,3,9,10,16,17,23,24-octafluorophthalocyanine(F_(8)CuPc)as cosensitizer,have been investigated in perovskite solar cells(PVSCs)to minimize sub-bandgap photon transmission loss.The firm hydrogen bonding interaction(F…H–N between F_(8)CuPc and MA+),cation-πinteraction(MA+with Rub),and the hydrophobic characteristic of additives enable F_(8)CuPc:Rub:DBP dually-sensitized p-i-n PVSCs based on MAPbI_(3)and Cs_(0.05)(FA_(0.83)MA_(0.17))_(0.95)Pb(Br_(0.17)I_(0.83))_(3)absorbers to attain champion efficiencies of 20.83%and 21.51%,respectively.Furthermore,due to the excellent photochemical and thermal stability of F_(8)CuPc,the corresponding PVSCs can maintain nearly 80%of the original efficiencies exposed to air with 50∼70%relative humidity over 1100 h and N_(2)at 85℃for 300 h. | Wangping Sheng Jia Yang Xiang Li Jiaqi Zhang Yang Su Yang Zhong Yanda Zhang Lingyun Gong Licheng Tan Yiwang Chen | 2023 | CCS Chemistry2023，5，3： | 0 |
| 13 | Background and Prospect of Meteorological Comment Writing显示文摘Meteorological comment is a kind of rational,thoughtful and knowledgeable argumentation form that communicators use mass media tools or carriers to directly express their own wishes on the newly occurred or discovered meteorological news facts,problems and phenomena.At present,the writing of meteorological comment has received special attention.Its deep background includes not only the international background of global attention to climate change,but also the domestic background of China’s proposed carbon peak and carbon neutralization targets,and more importantly,the scientific and technological background of the frequent occurrence of extreme meteorological disasters caused by climate change and its early warning and disaster reduction.The prospect of great importance attached to the writing of meteorological comments is that a new subject,namely the grammatology of meteorological comment,is bound to emerge,and the construction of the grammatology of meteorological comment has its own unique requirements. | Licheng LIU Hengxin TAN Yan ZHANG | 2022 | Meteorological and Environmental Research2022，13，5： | 0 |
| 14 | Dual-Resistance of Ion Migration and Moisture Erosion via Hydrolytic Crosslinking of Siloxane Functionalized Poly(Ionic Liquids)for Efficient and Stable Perovskite Solar Cells显示文摘The inevitable ion migration that occurs within ionic polycrystalline perovskite film results in inferior longterm stability of perovskite solar cells(PVSCs)that cannot meet the commercial requirements.Here,a novel poly(ionic liquid)named poly-1-vinyl-3-propyltrimethoxysilane imidazolium chloride(PImIL-SiO)is first introduced into perovskite to strengthen grain boundaries(GBs)and construct dual-functional barriers against internal ion migration and external moisture erosion for fabricating highly efficient and stable PVSCs.PImIL-SiO-containing imidazoliumcations and pendant siloxane groups contribute to passivation of bulk defects and anchoring of GBs,which effectively hinders ion migration channels,thus reducing perovskite film phase separation and device hysteresis.Furthermore,the intrinsically hydrophobic PImIL-SiO automatically forms a secondary protective barrier to endow the perovskite film with ultrahigh moisture corrosion resistance through the hydrolyzation reaction of siloxane with the permeated moisture.Consequently,the PImIL-SiO-modified PVSCs achieve a champion power conversion efficiency(PCE)of 22.46%,accompaniedby excellent thermal andhumidity stabilities where the non-encapsulated devices retain 87%of the initial PCE after aging at 85℃for 250 h and>85%of the initial PCE over 1100 h in air with a relative humidity of 50–70%. | Lingyun Gong Jia Yang Wangping Sheng Yang Zhong Yang Su Licheng Tan Yiwang Chen | 2023 | CCS Chemistry2023，5，5： | 0 |
| 15 | Achieving improved stability and minimal non-radiative recombination loss for over 18%binary organic photovoltaics via versatile interfacial regulation strategy显示文摘Interfacial regulation,serving multiple roles,is critical for the fabrication of stable and efficient organic photovoltaics(OPVs).Herein,a multifunctional cathode interlayer PDINO(15 nm)is prepared by regulating film thickness,which is inserted between active components and stable silver electrode to align work function,and maintain good interfacial contact and device stability.The thick film can help to reduce interfacial surface defects,keep stable surface morphology,and block the silver diffusion into the active layer.Consequently,the optimal PM6:Y6 device records an impressive power conversion efficiency(PCE)of 17.48%with minimized non-radiative recombination loss of 0.239 V.More importantly,the unencapsulated device maintains 91%of the original PCE after aging for over 60 days at 25℃ and 10%relative humidity in dark conditions.Meanwhile,the PM6:eC9 device achieves a remarkable PCE of 18.22%with the enhancement of open-circuit voltage(V_(oc)).Furthermore,the 1 cm^(2) device-based PDINO(15 nm)/Ag shows a high PCE of 15.2%while only 12.6%for PDINO(9 nm)/Al,indicating the good compatibility of PDINO(15 nm)interlayer with the R2R coating processes used in large-area OPVs fabrication.This work highlights the promise of interfacial regulation to simultaneously stabilize and enhance the efficiency of organic photovoltaics. | Lifu Zhang Houdong Mao Liqiang Huang Lei Hu Xinkang Wang Licheng Tan Yiwang Chen | 2022 | Science China Chemistry2022，65，8： | 0 |
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