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Simultaneously optimizing exciton diffusion length and nonradiative energy loss in organic solar cells via ternary strategy

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Science China Chemistry 2024年第9期67卷 3004-3011页

作者： Huanxiang Jiang Hao Lu zezhou liang Yonghai Li Guangliu Ran Chenyu Han Yuqiang Liu Hongxiang Li Xichang Bao Zhishan Bo College of Textiles and Clothing State Key Laboratory of Bio-fibers and Eco-textilesQingdao UniversityQingdao 266071China Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of SciencesQingdao 266101China Key Laboratory for Physical Electronics and Devices of the Ministry of Education&Shaanxi Key Lab of Photonic Technique for InformationSchool of Electronics Science&EngineeringFaculty of Electronic and Information EngineeringXi’an Jiaotong UniversityXi’an 710049China Department of Physics and Applied Optics Beijing Area Major Laboratory Center for Advanced Quantum StudiesBeijing Normal UniversityBeijing 100875China College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China Laboratory of Solar Energy Shandong Energy InstituteQingdao 266101China

Significant nonradiative energy loss and short exciton diffusion length in organic solar cells(OSCs)are two major obstacles to achieving state-of-the-art *** is crucial to conduct a study on the intensive mechanism and improvement strategies for future breakthroughs in the efficiency of *** this work,nonradiative energy loss and exciton diffusion length are optimized simultaneously by incorporating a guest acceptor(LA15)to construct ternary OSC(D18:L8-BO:LA15).Firstly,LA15 exhibits excellent compatibility with the host acceptor L8-BO,and effectively improves the fluorescence quantum efficiency(FLQY),resulting in suppressed non-radiative energy ***,LA15 effectively prolongs the fluorescent lifetime of the acceptor phase from 0.85 to 1.12 ns,leading to larger exciton diffusion length,which is beneficial for reducing geminate ***,the addition of LA15 optimizes the crystallinity of the active layer with amplified charge transport *** a result,the optimized D18:L8-BO:LA15 device achieves ultralow nonradiative energy loss of 0.18 e V and improved fill factor(FF)with high efficiency up to 19.13%.These results highlight the crucial roles of regulating FLQYand exciton lifetime in achieving highefficiency OSCs.

关键词： organic solar cells nonradiative energy loss exciton lifetime exciton diffusion length

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Association of previously irradiated stable brain metastases with outcomes of atezolizumab-treated non-small cell lung cancer: A pooled analysis of individual patient data from three randomized trials

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Cancer Communications 2024年第2期44卷 278-281页

作者： Tiantian Guo Yue Zhou Fei liang zezhou Wang Vincent Bourbonne Lukas Käsmann Nora Sundahl Abraham Jing-Ching Wu Jianjiao Ni Zhengfei Zhu Department of Radiation Oncology Fudan University Shanghai Cancer CenterShanghaiP.R.China Department of Oncology Shanghai Medical CollegeFudan UniversityShanghaiP.R.China Shanghai Clinical Research Center for Radiation Oncology ShanghaiP.R.China Shanghai Key Laboratory of Radiation Oncology ShanghaiP.R.China Department of Biostatistics Zhongshan HospitalFudan UniversityShanghaiP.R.China Department of Cancer Prevention Fudan University Shanghai Cancer CenterShanghaiP.R.China Radiation Oncology Department University HospitalBrestFrance Department of Radiation Oncology University HospitalLMU MunichMunichGermany Department of Radiation Oncology AZ GroeningeKortrijkBelgium Department of Radiation Oncology Memorial Sloan Kettering Cancer CenterNew YorkNew YorkUSA Institute of Thoracic Oncology Fudan UniversityShanghaiP.R.China

Dear Editor:Brain metastasis(BM)has long been recognized as a prognostic factor associated with poor prognosis for non-small cell lung cancer(NSCLC)in the era of con-ventional chemotherapy and targeted therapy[1].In the era of immunotherapy,controversial findings have been reported regarding the prognostic significance of BM in patients with NSCLC treated with programmed death-1/programmed death-ligand 1(PD-1/PD-L1)inhibitors.

关键词： chemotherapy NSCLC metastasis death

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Universal materials model of deep-learning density functional theory Hamiltonian

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Science Bulletin 2024年第16期69卷 2514-2521页

作者： Yuxiang Wang Yang Li Zechen Tang He Li Zilong Yuan Honggeng Tao Nianlong Zou Ting Bao Xinghao liang zezhou Chen Shanghua Xu Ce Bian Zhiming Xu Chong Wang Chen Si Wenhui Duan Yong Xu State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics Tsinghua UniversityBeijing 100084China Institute for Advanced Study Tsinghua UniversityBeijing 100084China Frontier Science Center for Quantum Information Beijing 100084China RIKEN Center for Emergent Matter Science(CEMS) Wako 351-0198Japan School of Materials Science and Engineering Beihang UniversityBeijing 100191China

Realizing large materials models has emerged as a critical endeavor for materials research in the new era of artificial intelligence,but how to achieve this fantastic and challenging objective remains ***,we propose a feasible pathway to address this paramount pursuit by developing universal materials models of deep-learning density functional theory Hamiltonian(Deep H),enabling computational modeling of the complicated structure-property relationship of materials in *** constructing a large materials database and substantially improving the Deep H method,we obtain a universal materials model of Deep H capable of handling diverse elemental compositions and material structures,achieving remarkable accuracy in predicting material *** further showcase a promising application of fine-tuning universal materials models for enhancing specific materials *** work not only demonstrates the concept of Deep H's universal materials model but also lays the groundwork for developing large materials models,opening up significant opportunities for advancing artificial intelligencedriven materials discovery.

关键词： Large materials model Universal materials model Deep-learning density functional theory Artificial intelligence-driven materials discovery

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塔里木盆地库车坳陷英买力地区白垩系巴什基奇克组中深层砂岩储层孔隙保存机制

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石油实验地质 2024年第5期46卷 1075-1087页

作者：张亮朱毅秀周露秦凯旋蒋俊熊荣坤李泽州中国石油塔里木油田分公司勘探开发研究院新疆库尔勒841000 中国石油超深层复杂油气藏勘探开发技术研发中心新疆库尔勒841000 新疆维吾尔自治区超深层复杂油气藏勘探开发工程研究中心新疆库尔勒841000 中国石油大学(北京)地球科学学院北京102249 中国石油大学(北京)油气资源与探测国家重点实验室北京102249

塔里木盆地库车坳陷南部斜坡带英买力地区白垩系巴什基奇克组砂岩储层物性好,油气勘探潜力大,但其非均质性强、油气分布规律不明。综合利用岩心观察、系列薄片(普通、铸体、阴极发光及包裹体)、扫描电镜、物性测试和X射线衍射等分析测... 详细信息

塔里木盆地库车坳陷南部斜坡带英买力地区白垩系巴什基奇克组砂岩储层物性好,油气勘探潜力大,但其非均质性强、油气分布规律不明。综合利用岩心观察、系列薄片(普通、铸体、阴极发光及包裹体)、扫描电镜、物性测试和X射线衍射等分析测试资料和成岩过程重建与物性恢复技术,分析英买力地区中深层巴什基奇克组砂岩储层的岩性与物性,探寻其孔隙特征与保存机制,划分储层类型和明确有利储层分布规律及控制因素。该砂岩主要为长石岩屑砂岩和岩屑长石砂岩,杂基含量较低,其成分和结构成熟度均中等;储层孔隙类型主要为残余原生孔隙,其次为次生孔隙,主要为粒间溶孔和粒内溶孔,为中高孔—中高渗储层。巴什基奇克组中深层砂岩原生孔隙得以保存主要在于其形成的沉积环境与经历的成岩和成储演化:首先砂岩形成于高水动力的辫状河三角洲前缘水下分流河道微相,不断叠置的河道形成了厚度较大且分布稳定的水道复合砂体,强水动力使得砂岩碎屑颗粒含量高、分选较好,为原生孔隙形成提供了物质基础;其次早期长期浅埋和后期快速深埋的埋藏演化方式使砂岩经历了较弱的压实作用改造,同时晚期深层超压作用大大增强了砂体抗压实能力,残余原生孔隙得以保存;最后坳陷不断降低的古地温梯度使得残余原生孔隙得以有效保存。

关键词：原生孔隙中深层储层库车南部斜坡带巴什基奇克组白垩系塔里木盆地

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Investigation of artifacts by mapping SAR in thermoacoustic imaging

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Journal of Innovative Optical Health Sciences 2021年第5期4卷 75-84页

作者： Xiao liang Qiang Liu zezhou Sun Weizhi Qi Yubin Gong Lei Xi School of Physics University of Electronic Science and Technology of China ChengduSichuan 610054P.R.China Department of Biomedical Engineering Southern University of Science and Technology ShenzhenGuangdong 518055P.R.China School of Electrical Science and Engineering University of Electronic Science and Technology of China ChengduSichuan 610054P.R.China

Microwave-induced thermoacoustic imaging(MI-TAI)remains one of the focus of attention among biomedical imaging modalities over the last ***,the transmission and dis-tribution of microwave inside bio-tissues are complicated,thus result in severe *** this study,to reveal the underlying mechanisms of artifacts,we deeply investigate the distribution of specific absorption rate(SAR)inside tissue-mimicking phantoms with varied morphological features using both mathematical simulations and corresponding *** simulated results,which are confirmed by the associated experimental results,show that the SAR distri-bution highly depends on the geometries of the imaging targets and the polarizing features of the *** addition,we propose the potential mechanisms including Mie-scattering,Fabry-Perot-feature,small curvature effect to interpret the diffraction effect in different scenarios,which may provide basic guidance to predict and distinguish the artifacts for TAI in both fundamental and clinical studies.

关键词： Imaging microwave thermoacoustic imaging artifacts specific absorption rate

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Investigation on the Mechanical Properties and Shape Memory Effect of Landing Buffer Structure Based on Ni Ti Alloy Printing

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Chinese Journal of Mechanical Engineering 2023年第4期36卷 415-424页

作者： Zhenglei Yu Renlong Xin zezhou Xu Yining Zhu Xiaolong Zhang Shijie Hao Zhihui Zhang Ping liang State Key Laboratory of Automotive Simulation and Control Jilin University Key Lab of Bionic Engineering Ministry of Education Jilin University Agriculture College Yanbian University State Key Laboratory of Heavy Oil Processing China University of Petroleum

With the deepening of human research on deep space exploration, our research on the soft landing methods of landers has gradually deepened. Adding a buffer and energy-absorbing structure to the leg structure of the lander has become an effective design solution. Based on the energy-absorbing structure of the leg of the interstellar lander, this paper studies the appearance characteristics of the predatory feet of the Odontodactylus scyllarus. The predatory feet of the Odontodactylus scyllarus can not only hit the prey highly when preying, but also can easily withstand the huge counter-impact force. The predatory feet structure of the Odontodactylus scyllarus, like a symmetrical cone, shows excellent rigidity and energy absorption capacity. Inspired by this discovery, we used SLM technology to design and manufacture two nickel-titanium samples, which respectively show high elasticity, shape memory, and get better energy absorption capacity. This research provides an effective way to design and manufacture highmechanical energy-absorbing buffer structures using bionic 3D printing technology and nickel-titanium alloys.

关键词： Bionic protective structure Odontodactylus scyllarus NiTi alloy 3D printing Numerical simulation Recoverability

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Mechanical Characteristics Analysis of 3D-printing Novel Chiral Honeycomb Array Structures Based on Functional Principle and Constitutive Relationship

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Journal of Bionic Engineering 2023年第5期20卷 1917-1929页

作者： Ruiyao Liu Guofeng Yao zezhou Xu Xue Guo Jianyong Li Zhenglei Yu Ping liang Zhihui Zhang Chunyang Han Department of Mechanics School of Mechanical and Aerospace EngineeringJilin UniversityChangchun130022China Key Laboratory of Bionic Engineering of Ministry of Education Jilin UniversityChangchun130022China State Key Laboratory of Automotive Simulation and Control Jilin UniversityChangchun130022China Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of SciencesChangchun130022China

Four novel chiral honeycomb structures inspired by the biological arrangement shape are *** functional principle is raised to solve the large deformation of bio-inspired structures and the structural constitutive model is proposed to explain the quasi-static mechanical properties of chiral honeycomb array structures and honeycomb *** and experiment results verify the accuracy of theoretical analysis results and the errors are all within 15%.In structural mechanical properties,Equidimensional Chiral Honeycomb Array Structure(ECHS)has excellent mechanical *** ECHS,Small-sized Column Chiral Honeycomb Array Structure(SCHCS)has the best *** bearing capacity,specific energy absorption,and specific strength of SCHCS are more than twice as much as the others in this *** chiral honeycomb array structure has the best mechanical properties at a certain *** the structural design,the optimal size model should be obtained first in combination with the optimization algorithm for the protection design.

关键词： Bionic Gradient sizes Function principle Constitutive model The global simulated annealing optimization algorithm

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Shock-Resistant and Energy-Absorbing Properties of Bionic NiTi Lattice Structure Manufactured by SLM

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Journal of Bionic Engineering 2022年第6期19卷 1684-1698页

作者： Zhenglei Yu Renlong Xin zezhou Xu Luming Sha Lixin Chen Yining Zhu Ping liang Zhihui Zhang Zhenze Liu Qing Cao College of Communication Engineering Jilin UniversityChangchun130022China Key Laboratory of Engineering Bionics Ministry of EducationJilin UniversityChangchun130022China State Key Laboratory of Automotive Simulation and Control Jilin UniversityChangchun130022China School of Agriculture Yanbian UniversityYanji133002China

Each specific structure of organisms is the best choice under specific *** excellent characteristic structures of these organisms have great application potential in the design and multi-functional optimization of energy-absorbing structures such as vehicle collisions,satellite landings,and military *** this paper,using the principle of structural bionics,using the advantages of the honeycomb structure and the light weight and high strength of beetle elytra,four bionic lattice structures are studied:CH,ZPRH,SCH and *** NiTi shape memory alloy,a unique material as the base material,samples are prepared using selective laser melting(SLM)*** comparing the test results of the quasi-static compression test with the results of the numerical simulation,it is found that compared with the other three bionic lattice structures,the SCH structure has the best energy absorption effect in the effective stroke in the test,and the specific energy absorption can reach 6.32 J/***,SCH,and IBE structures not only have good and stable deformation behavior,but also have excellent impact resistance and shape memory *** design of these structures provides a reference for the design of anti-shock cushioning structures with self-recovery functions in the future.

关键词： Engineering bionics Bionic structural design Additive manufacturing Quasi-static compression Numerical simulation Shape memory effect

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125I粒子治疗恶性肺肿瘤所致放射性肺炎剂量学因素分析

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中华放射医学与防护杂志 2024年第1期44卷 13-17页

作者：徐克赵金鑫刘泽洲梁岩松曹国辉刘晓丽底彦王娟张宏涛河北省肿瘤放射性粒子植入诊疗中心、河北省放射性粒子近距离治疗研究所、河北省人民医院肿瘤一科石家庄050051

目的观察125I粒子植入治疗恶性肺肿瘤导致放射性肺炎发生率,对其相关剂量学参数进行分析。方法回顾分析2017年1月至2022年12月河北省肿瘤放射性粒子植入诊疗中心收治的31例接受125I粒子植入治疗的恶性肺肿瘤患者,其中鳞癌8例,腺癌10例,... 详细信息

目的观察125I粒子植入治疗恶性肺肿瘤导致放射性肺炎发生率,对其相关剂量学参数进行分析。方法回顾分析2017年1月至2022年12月河北省肿瘤放射性粒子植入诊疗中心收治的31例接受125I粒子植入治疗的恶性肺肿瘤患者,其中鳞癌8例,腺癌10例,其他部位转移癌13例,术后1~6个月复查胸部CT,采用实体瘤疗效评价标准(RECIST 1.1)对所有患者行疗效评价,观察客观缓解率(ORR)及疾病控制率(DCR),放射性肺炎(RP)采用美国肿瘤放射治疗协作组(RTOG)放射性肺炎评价标准评价,统计术后D90(90%靶体积所接受的最小周边剂量)、患侧肺V_(8)(8 Gy包绕肺体积占患侧肺体积的百分比)、V_(32)(32 Gy包绕肺体积占患侧肺体积的百分比)、患侧肺Dmean(平均照射剂量)。分析术后D_(90)、V_(8)、V_(32)、Dmean等剂量学参数与发生RP的关系,将术后各剂量学参数与外放疗相关数据进行比较,寻找与RP发生相关性较高的参数。结果所有患者均顺利手术,术后6个月疗效评价完全缓解(CR)11例,部分缓解(PR)11例,疾病稳定(SD)8例,疾病进展(PD)1例,ORR为71.0%,DCR为96.8%,RP患者3例,RP发生率为9􀆰7%,粒子术后V_(8)、V_(32)、D_(mean)等不能作为预测放射性肺炎指标,经随访观察术后D90超过170 Gy发生放射性肺炎患者3例(3/5),<170 Gy患者发生放射性肺炎患者0例(0/26)。结论粒子植入治疗恶性肺肿瘤,术后D_(90)与RP发生有一定相关性,V_(8)、V_(32)、D_(mean)与RP发生无相关性。

关键词：放射性肺炎肺肿瘤近距离治疗剂量学参数

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改良术中实时计划对125Ⅰ粒子治疗腰淋巴结转移癌的价值

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实用肿瘤杂志 2024年第2期39卷 160-165页

作者：刘泽洲梁岩松赵金鑫于慧敏张宏涛徐克李慧娟底学敏高贞王娟河北省肿瘤放射性粒子植入诊疗中心河北省放射性粒子近距离治疗研究所河北省人民医院肿瘤一科河北石家庄050051

目的探讨改良术中实时计划对CT引导125Ⅰ粒子植入治疗腰淋巴结转移癌的价值。方法选取2015年1月至2021年12月在河北省人民医院接受125Ⅰ粒子治疗的腰淋巴结转移癌患者26例。根据手术时长(0.05)。传统术中实时计划组术前和术后V150比较... 详细信息

目的探讨改良术中实时计划对CT引导125Ⅰ粒子植入治疗腰淋巴结转移癌的价值。方法选取2015年1月至2021年12月在河北省人民医院接受125Ⅰ粒子治疗的腰淋巴结转移癌患者26例。根据手术时长(0.05)。传统术中实时计划组术前和术后V150比较,差异具有统计学意义(P0.05)。两组V150差值百分比比较,差异具有统计学意义(P=0.035);其余各剂量参数差值百分比比较,差异均无统计学意义(均P>0.05)。改良术中实时计划组和传统术中实时计划组术后6个月有效率分别为76.9%(10/13)和46.2%(6/13;P=0.226)。两组均未出现腹膜炎和出血等并发症。结论改良术中实时计划提高粒子剂量分布的准确性,在一定程度上降低高剂量区范围,为125Ⅰ粒子治疗腰淋巴结转移癌的安全性提供保证。

关键词：肿瘤近距离治疗腰淋巴结转移 125Ⅰ粒子剂量疗效

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