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Enhancing efficiency and stability of organic solar cells through a simplified four-step synthesis of fully non-fused ring electron acceptor

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Journal of Energy Chemistry 2024年第6期93卷 601-608,I0015页

作者： Chenyang Han Huanhuan Gao Yanna Sun Yuanyuan Kan Zhaozhao Bi Wei Ma Yani Zhang Juan Antonio Zapien yingguo yang Ke Gao College of New Energy Xi’an Shiyou UniversityXi’an 710065ShaanxiChina Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion Institute of Frontier ChemistrySchool of Chemistry and Chemical EngineeringShandong UniversityQingdao 266237ShandongChina State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an 710049ShaanxiChina Department of Materials Science and Engineering City University of Hong KongKowloonHong Kong 99907China School of Microelectronics Fudan UniversityShanghai 200433China

Design and synthesis of superior cost-effective non-fullerene acceptors(NFAs)are still big challenges for facilitating the commercialization of organic solar cells(OSCs),yet to be ***,two medium bandgap fully non-fused ring electron acceptors(NFREAs,medium bandgap,i,e.,1,3-1,8 eV),namely PTR-2Cl and PTR-4Cl are synthesized with only four steps by using intramolecular noncovalent interaction central core,structured alkyl side chain orientation linking units and flanking with different electron-withdrawing end *** them,PTR-4C1 exhibits increased average electrostatic potential(ESP)difference with polymer donor,enhanced crystallinity and compactπ-πstacking compared with the control molecule *** a result,the PTR-4Cl-based OSC achieved an impressive power conversion efficiency(PCE)of 14.72%,with a much higher open-circuit voltage(V_(OC))of 0.953 V and significantly improved fill factor(FF)of 0.758,demonstrating one of the best acceptor material in the top-performing fully NFREA-based OSCs with both high PCE and V_(OC).Notably,PTR-4Cl-based cells maintain a good T_80lifetime of its initial PCE after over 936 h under a continuous thermal annealing treatment and over1300 h T_(80)lifetime without *** work provides a cost-effective design strategy for NFREAs on obtaining high V_(OC),efficient exciton dissociation,and ordered molecular packing and thus high-efficiency and stable OSCs.

关键词： Organic solar cells Fully non-fused ring acceptors End group engineering Morphology regulation High efficiency

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Copper naphthalocyanine-based hole-transport material for highperformance and thermally stable perovskite solar cells

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Science China Chemistry 2024年第8期67卷 2701-2709页

作者： Yue Qiang Huaiman Cao Yuzhen Pan Yi Chi Liangyu Zhao yingguo yang Hai-Bei Li Yan Gao Licheng Sun Ze Yu State Key Laboratory of Fine Chemicals Frontier Science Center for Smart MaterialsDalian University of Technology(DUT).Dalian 116024China School of Chemistry Dalian University of Technology(DUT)Dalian 116024China School of Microelectronics Fudan UniversityShanghai 200433China Shanghai Synchrotron Radiation Facility(SSRF) Zhangjiang LabShanghai Advanced Research InstituteShanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201800China School of Ocean Shandong UniversityWeihai 264209China Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry School of ScienceWestlake UniversityHangzhou 310024China Department of Chemistry School of Engineering Sciences in ChemistryBiotechnology and HealthKTH Royal Institute of Technology Stockholm 10044Sweden

Metal phthalocyanines(MPcs) have gained considerable research attention as hole-transport materials(HTMs) in perovskite solar cells(PSCs) because of their superb stability. However, the photovoltaic performance of MPc-based HTMs in PSCs is still lagging behind their small molecule and polymeric counterparts, largely due to their relatively low hole mobility. Here, we report for the first time the application of a copper naphthalocyanine derivative(namely t Bu-Cu Nc) as a hole-transport material(HTM)in perovskite solar cells(PSCs), and systematically study its optoelectronic and photovoltaic property compared with its Cu Pc analog(t Bu-Cu Pc). Combined experiments disclose that the extension of π-conjugation from Pc to Nc core leads to not only an enhanced hole-carrier mobility associated with a stronger intermolecular interaction, but also an elevated glass transition temperature(T_g) of 252 °C. The resultant PSCs employing t Bu-Cu Nc deliver an excellent power conversion efficiency of 24.03%, which is the record efficiency reported for metal complex-based HTMs in PSCs. More importantly, the encapsulated t Bu-Cu Nc-based devices also show dramatically improved thermal stability than the devices using the well-known SpiroOMe TAD, with a T_(80)lifetime for more than 1,000 h under damp-heat stress. This study unfolds a new avenue for developing efficient and stable HTMs in PSCs.

关键词： hole-transport materials perovskite solar cells copper naphthalocyanine extendedπ-conjugation thermal stability

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Bridging buried interface enable 24.67%-efficiency doctor-bladed perovskite solar cells in ambient condition

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Nano Research 2024年第9期17卷 8068-8076页

作者： Jianhui Chang Erming Feng Xiangxiang Feng Hengyue Li yang Ding Caoyu Long Siyuan Lu Haixia Zhu Wen Deng Jiayan Shi yingguo yang Si Xiao Yongbo Yuan Junliang yang Hunan Key Laboratory for Super-microstructure and Ultrafast Process School of PhysicsCentral South UniversityChangsha 410083China Hunan Key Laboratory of Nanophotonics and Devices School of PhysicsCentral South UniversityChangsha 410083China Textile and Fashion Collage Hunan Institute of EngineeringXiangtan 411101China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083China

Scalable deposition of high-efficiency perovskite solar cells(PSCs)is critical to accelerating their commercial ***,a significant number of defects are distributed at the buried interface of perovskite film fabricated by scalable deposition,exhibiting much negative influence on the efficiency and stability of ***,2-(N-morpholino)ethanesulfonic acid potassium salt(MESK)is incorporated as the bridging layer between the tin oxide(SnO_(2))electron transport layer(ETL)and the perovskite film deposited via scalable two-step doctor *** experiment and simulation results demonstrate that MESK can passivate the trap states of Sn suspension bonds,thereby enhancing the charge extraction and transport of the SnO_(2)***,the strong interaction with uncoordinated Pb ions can modulate the crystal growth and crystallographic orientation of perovskite film and passivate buried *** employing MESK interface bridging,PSCs fabricated via scalable doctor blading in ambient condition achieve a power conversion efficiency(PCE)of 24.67%,which is one of the highest PCEs for doctor-bladed PSCs,and PSC modules with an active area of 11.35 cm^(2)achieve a PCE of 19.45%.Furthermore,PSCs exhibit excellent long-term stability,and the unpackaged target device with a storage of 1680 h in ambient condition(25℃and humidity of 30%relative humidity(RH))can maintain more than 90%of the initial *** research provides a strategy for constructing a high-performance interface bridge between SnO_(2)ETL and perovskite film,and achieving efficient and stable large-area PSCs and modules fabricated via scalable doctor-blading process in ambient condition.

关键词： perovskite solar cells doctor blading buried interface defect passivation orientation regulation

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Revealing the vertical structure of in-situ fabricated perovskite nanocrystals films toward efficient pure red light-emitting diodes

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Fundamental Research 2024年第2期4卷 362-368页

作者： Xian-gang Wu Shipei Sun Tinglu Song Xin Zhang Chenhui Wang yingguo yang Shuangpeng Wang Haizheng Zhong MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices School of Materials Science&EngineeringBeijing Institute of TechnologyBeijing 100081China Experimental Center of Advanced Materials School of Materials Science&EngineeringBeijing Institute of TechnologyBeijing 100081China Shanghai Synchrotron Radiation Facility(SSRF) Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201204China Institute of Applied Physics and Materials Engineering University of MacaoMacao 999078China

The development of efficient perovskite light-emitting diodes(PeLEDs)relies strongly on the fabrication of perovskite films with rationally designed structures(grain size,composition,surface,etc.).Therefore,an understanding of structure-performance relationships is of vital importance for developing high-performance perovskite devices,particularly for devices with in-situ fabricated perovskite nanocrystal *** this study,we reveal the vertical structure of an in-situ fabricated quasi-two-dimensional perovskite *** combining time-of-flight secondary ion mass spectrometry,energy dispersive spectroscopy,grazing incidence wide-angle X-ray scattering(GIWAXS),and low-temperature photoluminescence spectra,we illustrate that the resulting in-situ fabricated DPPA_(2)Cs_(n-1)Pb_(n)(Br_(0.3)I_(0.7))_(3n+1)(DPPA^(+):3,3-diphenylpropylammonium)film has a gradient structure with a very thin layer of ligands on the surface,predominantly small-n domains at the top,and predominantly large-n domains at the bottom owing to the solubility difference of the *** addition,GIWAXS measurements show that the domain of n=2 on the top layer has an ordered in-plane *** on the understanding of the film structure,we developed an in-situ fabrication process with ligand exchange to achieve efficient pure red PeLEDs at 638 nm with an average external quantum efficiency(EQE)of 7.4%.The optimized device had a maximum luminance of 623 cd/m^(2) with a peak EQE of 9.7%.

关键词： Light-emitting diodes Perovskite TOF-SIMS Vertical structure in-situ fabrication

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“袖套法”包皮环切整形术与一次性包皮吻合器术治疗包皮过长、包茎的疗效比较

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现代诊断与治疗 2024年第6期35卷 794-796,810页

作者：杨应国南昌市生殖医院江西南昌330001

目的探讨一次性包皮吻合器与“袖套法”包皮环切整形术治疗包皮过长、包茎的临床疗效,为临床包皮环切术的选择提供依据。方法选取2017年12月至2020年4月于我院泌尿科拟行包皮环切手术治疗的包皮过长、包茎患者160例为研究对象,按照患... 详细信息

目的探讨一次性包皮吻合器与“袖套法”包皮环切整形术治疗包皮过长、包茎的临床疗效,为临床包皮环切术的选择提供依据。方法选取2017年12月至2020年4月于我院泌尿科拟行包皮环切手术治疗的包皮过长、包茎患者160例为研究对象,按照患者术前手术意愿分为对照组和观察组各80例。对照组接受一次性包皮吻合器手术治疗,观察组接受“袖套法”包皮环切整形术治疗。比较两组临床指标(手术费用、手术时间、切口愈合时间),通过VAS评分比较两组术中、术后疼痛情况,对比两组手术并发症、不良结局情况及切口外观满意情况。结果对照组并发症发生率为20.00%,显著高于观察组的3.75%,差异有统计学意义(P0.05);观察组总体费用显著低于对照组,手术时长于对照组,差异有统计学意义(P0.05)。两组患者的切口外观总满意率比较,差异无显著性(P>0.05)。结论一次性包皮吻合器手术切除包皮手术时间短,在手术选择有一定时间优势,但“袖套法”包皮环切整形术手术总体费用较少,无明显并发症,手术方式适应于不同情况、不同年龄阶段的包皮过长、包茎患者,在临床上具有更广应用价值。

关键词：一次性包皮吻合器 “袖套法”包皮环切整形术包皮过长包茎

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Characterization and Use of Male Sterility in Hybrid Rice Breeding

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Journal of Integrative Plant Biology 2007年第6期49卷 791-804页

作者： Shaoqing Li Daichang yang yingguo Zhu Key Laboratory of MOE for Plant Developmental Biology and Institute of Genetics College of Life Sciences Wuhan University Wuhan 430072 China

The hybrid rice （Oryza sativa L.） breeding that was Initiated In China in the 1970s led to a great improvement in rice productivity. In general, It increases the grain yield by over 20% to the inbred rice varieties, and now hybrid rice has been widely introduced into Africa, Southern Asia and America. These hybrid varieties are generated through either three-line hybrid and two-line hybrid systems; the former is derived from cytoplasmic male sterility （CMS） and the latter derived from genlc male sterility （GMS）. There are three major types of CMS （HL, BT and WA） and two types of GMS （photoperlod-sensitlve （PGMS） and temperature-sensitive （TGMS））. The BT- and HL-type CMS genes are characterized as orf79 and orfH79, which are chimeric toxic genes derived from mltochondrial rearrangement. Rf3 for CMS-WA Is located on chromosome 1, while Rf1, Rf4, Rf5 and Rf6 correspond to CMS-BT, CMSoWA and CMS- HL, located on chromosome 10. The Rfl gene for BT-CMS has been cloned recently, and encodes a mltochondriatargeted PPR protein. PGMS Is thought to be controlled by two recessive loci on chromosomes 7 and 12, whereas nine recessive alleles have been identified for TGMS and mapped on different chromosomes. Attention Is still urgently needed to resolve the molecular complexity of male sterility to assist rice breeding.

关键词： hybrid rice male sterility Oryza sativa.

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Efficient homojunction tin perovskite solar cells enabled by gradient germanium doping

Efficient homojunction tin perovskite solar cells enabled by...

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第十一届新型太阳能材料科学与技术学术研讨会

作者： Zhenzhu Zhao Mulin Sun Yuyang Ji Kaitian Mao Zongming Huang Chengjian Yuan Yuqian yang Honghe Ding yingguo yang Yu Li Wenjing Chen Junfa Zhu Jing Wei Jixian Xu Watcharaphol Paritmongkol Antonio Abate Zhengguo Xiao Lixin He Qin Hu School of Microelectronics University of Science and Technology of China

P-type self-doping is known to hamper tin-based perovskites for developing highperformance solar cells by increasing background current density and carrier recombination *** this work,we propose a gradient homojunction structure with germanium doping that generates an internal electric field across the perovskite film to deplete the charge *** structure reduces the dark current density of perovskite by over two orders of magnitude and trap density by an order of *** resultant tin-based perovskite solar cells exhibit a higher power conversion efficiency of 13.2% and excellent stability,maintaining 95% and 85% of their initial efficiencies after 250 min of continuous illumination and 3800 h of storage,*** reveal the homojunction formation mechanism using density functional theory calculations and molecular-level *** work provides a reliable strategy for controlling the spatial energy levels in tin perovskite films and offers insights for designing intriguing lead-free perovskite optoelectronics.

关键词： tin-based perovskite gradient homojunction perovskite solar cells

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补肾活血汤联合低能量冲击波治疗肾虚血瘀型勃起功能障碍的效果

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中国医学创新 2024年第24期21卷 41-45页

作者：王安胥杜娟杨应国南昌市生殖医院男科江西南昌330103 南昌市新华医院男科江西南昌330103 南昌市生殖医院生殖医学科江西南昌330103 南昌市生殖医院泌尿外科江西南昌330103

目的:探讨补肾活血汤联合低能量冲击波治疗肾虚血瘀型勃起功能障碍的效果。方法:采用随机对照试验研究,依据随机数字表法将南昌市生殖医院2022年1月—2023年12月收治的86例肾虚血瘀型勃起功能障碍患者分为对照组和观察组,各43例。对照... 详细信息

目的:探讨补肾活血汤联合低能量冲击波治疗肾虚血瘀型勃起功能障碍的效果。方法:采用随机对照试验研究,依据随机数字表法将南昌市生殖医院2022年1月—2023年12月收治的86例肾虚血瘀型勃起功能障碍患者分为对照组和观察组,各43例。对照组在常规治疗基础上给予低能量冲击波治疗,观察组在对照组基础上加用补肾活血汤治疗,持续治疗6周。比较两组治疗前后的勃起功能、中医证候评分、性激素水平及血管内皮功能。结果:治疗后,两组国际勃起功能指数-5(IIEF-5)评分、勃起硬度等级(EHS)评分均较治疗前升高,两组中医证候评分均较治疗前降低,且观察组IIEF-5、EHS评分均高于对照组,中医证候评分均低于对照组,差异均有统计学意义(P<0.05);治疗后,两组内皮素-1(ET-1)水平均较治疗前降低,黄体生成素(LH)、睾酮(T)、一氧化氮(NO)水平均较治疗前升高,且观察组ET-1水平低于对照组,LH、T、NO水平均高于对照组,差异均有统计学意义(P<0.05)。结论:补肾活血汤联合低能量冲击波治疗肾虚血瘀型勃起功能障碍效果显著,可减轻勃起障碍程度,增强勃起硬度,同时还可改善性激素水平及血管内皮功能。

关键词：勃起功能障碍肾虚血瘀型补肾活血汤低能量冲击波

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Crystallization and Orientation Modulation Enable Highly Efficient Doctor-Bladed Perovskite Solar Cells

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Nano-Micro Letters 2023年第10期15卷 40-52页

作者： Jianhui Chang Erming Feng Hengyue Li yang Ding Caoyu Long Yuanji Gao yingguo yang Chenyi Yi Zijian Zheng Junliang yang Hunan Key Laboratory of Nanophotonics and Devices School of Physics and ElectronicsCentral South UniversityChangsha 410083HunanPeople’s Republic of China Shanghai Synchrotron Radiation Facility(SSRF) Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204People’s Republic of China Department of Electrical Engineering Tsinghua UniversityBeijing 100084People’s Republic of China Department of Applied Biology and Chemical Technology Faculty of ScienceThe Hong Kong Polytechnic UniversityHong Kong 999077People’s Republic of China

With the rapid rise in perovskite solar cells(PSCs)performance,it is imperative to develop scalable fabrication techniques to accelerate potential ***,the power conversion efficiencies(PCEs)of PSCs fabricated via scalable two-step sequential deposition lag far behind the state-of-the-art spin-coated ***,the additive methylammonium chloride(MACl)is introduced to modulate the crystallization and orientation of a two-step sequential doctorbladed perovskite film in ambient *** can significantly improve perovskite film quality and increase grain size and crystallinity,thus decreasing trap density and suppressing nonradiative ***,MACl also promotes the preferred face-up orientation of the(100)plane of perovskite film,which is more conducive to the transport and collection of carriers,thereby significantly improving the fill *** a result,a champion PCE of 23.14%and excellent longterm stability are achieved for PSCs based on the structure of ITO/SnO_(2)/FA_(1-x)MA_xPb(I_(1-y)Br_y)_3/Spiro-OMeTAD/*** superior PCEs of 21.20%and 17.54%are achieved for 1.03 cm~2 PSC and 10.93 cm~2 mini-module,*** results represent substantial progress in large-scale two-step sequential deposition of high-performance PSCs for practical applications.

关键词： Crystallization regulation Orientation modulation Perovskite solar cells Doctor-blading Ambient condition

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Strong circularly polarized luminescence from quantum dots/2D chiral perovskites composites

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Nano Research 2023年第5期16卷 7593-7599页

作者： Qingqian Wang Hongmei Zhu Wei Chen Junjie Hao Zhaojin Wang Jun Tang yingguo yang Xiao Wei Sun Dan Wu Kai Wang Department of Electrical and Electronic Engineering Southern University of Science and TechnologyShenzhen 518055China College of Engineering Physics Shenzhen Technology UniversityShenzhen 518118China College of New Materials and New Energies Shenzhen Technology UniversityShenzhen 518118China Shanghai Advanced Research Institute Chinese Academy of ScienceShanghai 201210China

Chiral perovskites(CPs)have attracted enormous attentions since they have combined chirality and optoelectrical properties well which is promising in circularly polarized luminescence(CPL)application and of great importance for future ***,there is a key contradiction that in chiral perovskites chirality distorts the crystal structure,leading to poor photoluminescence(PL)*** the balance between chirality and PL is a major challenge for strong CPL from chiral ***,two-dimensional(2D)chiral perovskite has shown fascinating chiral induced spin selectivity(CISS)effect which can act as spin injector under ambient ***,we propose an effective strategy to achieve high CPL activity generated from quantum dots(QDs)by introducing 2D chiral perovskite as a chiral source,providing spin polarized carriers through the CISS *** as-synthesized QDs/CP composites exhibit dissymmetry factors(glum)up to 9.06×10^(−3).For the first time,we performed grazing incident wide angle X-ray scattering(GIWAXS)measurements,showing the chirality originates from the distorted lattices caused by the large chiral organic ***,time-resolved PL(TR-PL)measurements verify the enhanced CPL activity should be attributed to the charge transport between two *** findings provide a useful method to achieve CPL in QDs/2D chiral perovskite heterojunctions which could be promising in spinoptoelectronics application.

关键词： circularly polarized luminescence colloidal quantum dots two-dimensional(2D)chiral perovskites grazing incident wide angle X-ray scattering(GIWAXS) chiral induced spin selectivity

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