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A monolithic 3D IGZO-RRAM-SRAM-integrated architecture for robust and efficient compute-in-memory enabling equivalent-ideal device metrics

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science China(Information sciences) 2025年第2期68卷 322-337页

作者： Shengzhe YAN Zhaori CONG Zi WANG Zhuoyu DAI Zeyu GUO Zhihang QIAN Xufan LI Xu ZHENG Chuanke CHEN Nianduan LU Chunmeng DOU Guanhua YANG Xiaoxin XU Di GENG Jinshan YUE Lingfei WANG Ling LI Ming LIU Institute of Microelectronics of the chinese academy of sciences University of chinese academy of sciences

Compute-in-memory(CIM) based on various devices such as static random access memory(SRAM) and resistive random access memory(RRAM) and other emerging devices such as indium-gallium-zinc-oxide(IGZO) transistor, magnetoresistive RAM(MRAM), and ferroelectric RAM(FeRAM) has been explored for better performance and energy efficiency on neural networks applications. However, CIM based on a single-type device suffers a variety of non-ideal metrics to reach the simultaneous optimal accuracy, density, and energy efficiency. This work presents equivalent-ideal CIM(Eq-CIM), a monolithic 3D(M3D) IGZO-RRAM-SRAM integrated architecture for robust and efficient compute-in-memory enabling equivalent-ideal device metrics. To overcome the non-ideality(variation, endurance, temperature, etc.) of the single-type devices, system-technology co-optimization(STCO) is performed. This work highlights the non-ideality-aware functionality breakdown for robust high accuracy and simultaneous high density/efficiency, by utilizing 2T0C IGZO for temporal activation storage, RRAM for high-density weight storage, and SRAM for accurate CIM. Device-to-algorithm variation transfer is applied to analyze the system-level accuracy. We benchmark Eq-CIM architecture on CIFAR-10/ImageNet, with 5.06× storage density and 5.05×/2.45× area/energy efficiency compared with single-type-device-based CIM, and high robustness(<0.27% accuracy loss) from-40℃ to 120℃.

关键词： compute-in-memory (CIM) monolithic 3D RRAM IGZO 3D-stack simulation

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In vivo self-assembled bispecific fluorescence probe for early detection of bladder cancer and metastasis

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science Bulletin 2025年第3期70卷 407-418页

作者： Da-Yong Hou Ni-Yuan Zhang Peng Zhang Xiang-Peng Li Jiong-Cheng Wu Mei-Yu Lv Zhi-Jia Wang Xing-Jie Hu Jian-Xiao Liang Hong-Lei Wang Yue-Ze Wang Hui-Hui You Hong-Wei An Hao Wang Wanhai Xu NHC Key Laboratory of Molecular Probe and Targeted Theranostics Heilongjiang Key Laboratory of Scientific Research in UrologyHarbin Medical UniversityHarbin 150001China Department of PET-CT/MRI Harbin Medical University Cancer HospitalHarbin 150001China CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology(NCNST)Beijing 100190China

Tumor metastasis accounts for over 90%of tumor-related deaths,prompting the development of fluorescently labeled tumor-specific molecular imaging agents for differentiating tumors from normal ***,early detection of metastasis lesions by tracking tumor markers alone has proven to be ***,we reported a glycopeptide-based bispecific fluorescence probe(bsProbe)for earlier detection of bladder cancer and *** simultaneously recognition(tumor&tumor microenvironment)and in vivo self-assembly,the tumor accumulation of bsProbe(12.3%ID/g)was obviously increased by∼6 fold compared with that in CXCR4 specific fluorescence probe(sProbe),indicating the obvious advantages of bsProbe over existing tumor metastasis detection ***,bsProbe substantially broadens the tumor diagnosis window and enhances the detection signal to noise ratio(SNR:approximately 9.5),permitting early diagnosis of lung micro-metastasis(∼1 mm),precise identifying of tumor boundaries and micro-tumors in orthotopic tumor *** importantly,bsProbe was demonstrated to distinguish malignant from benign specimen with a specificity of 90.48%and sensitivity of 92.22%in 195 clinical specimens of bladder cancer *** together,this novel synergetic targeting(CD206×CXCR4)strategy provides an attractive method for earlier detection of bladder cancer and metastasis,which might be further extended to the imaging-guided surgery of clinical invisible tumors.

关键词： Self-assembly Peptide Nanomaterial Fluorescence imaging Bladder cancer

A cellulose-based lithium-ion battery separator with regulated ionic transport and high thermal stability for extreme environments

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Nano Research 2025年第1期18卷 315-322页

作者： Kun-Peng Yang Song Xie Zi-Meng Han Hao-Cheng Liu Chong-Han Yin Wen-Bin Sun Zhang-Chi Ling Huai-Bin Yang De-Han Li Qing-Fang Guan Shu-Hong Yu Department of Chemistry New Cornerstone Science LaboratoryInstitute of Biomimetic Materials&ChemistryAnhui Engineering Laboratory of Biomimetic MaterialsDivision of Nanomaterials&ChemistryHefei National Research Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaHefei 230026China Institute of Innovative Materials Department of Materials Science and EngineeringDepartment of ChemistrySouthern University of Science and TechnologyShenzhen 518055China

Separators play a critical role in lithium-ion ***,the restrictions of thermal stability and inferior electrical performance in commercial polyolefin separators significantly limit their applications under harsh ***,we report a cellulose-assisted self-assembly strategy to construct a cellulose-based separator massively and *** an ultrahigh ionic conductivity in electrolytes of 3.7 mS·cm^(-1) and the ability to regulate ion transport,the obtained separator is a promising alternative for high-performance lithium-ion *** addition,integrated with high thermal stability,the cellulose-based separator endows batteries with high safety at high temperatures,greatly expanding the application scenarios of energy storage devices in extreme environments.

关键词： lithium-ion batteries bio-inspired materials battery separators cellulose nanofiber ultrahigh ionic conductivity high safety

Sympathetic Solar Eruption on 2024 February 9

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Research in Astronomy and Astrophysics 2025年第1期25卷 184-193页

作者： Shu-Yue Li Qing-Min Zhang Bei-Li Ying Li Feng Ying-Na Su Mu-Sheng Lin Yan-Jie Zhang School of science Nanjing University of Posts and Telecommunications Key Laboratory of Dark Matter and Space Astronomy Purple Mountain Observatory School of Astronomy and Space science University of Science and Technology of China

In this paper,we perform a follow-up investigation of the solar eruption originating from active region 13575 on2024 February *** primary eruption of a hot channel generates an X3.4 class flare,a full-halo coronal mass ejection （CME）,and an extreme-ultraviolet （EUV） *** between the wave and a quiescent prominence（QP） leads to a large-amplitude,transverse oscillation of *** the transverse oscillation,QP loses equilibrium and rises *** ascending motion of the prominence is coherently detected and tracked up to～1.68 R⊙by the Solar Ultra Violet Imager onboard the GOES-16 spacecraft and up to～2.2 R⊙by the Solar Corona Imager（SCI＿UV） of the Lyα Solar Telescope onboard the ASO-S *** velocity increases linearly from 12.3 to68.5 km s-1at 18:30 *** sympathetic eruption of QP drives the second CME with a typical three-part *** bright core comes from the eruptive prominence,which could be further observed up to～3.3 R⊙by the Large Angle Spectroscopic Coronagraph onboard the Solar and Heliospheric Observatory *** leading edge of the second CME accelerates continuously from～120 to～277 km *** EUV wave plays an important role in linking the primary eruption with the sympathetic eruption.

关键词： Sun: coronal mass ejections (CMEs) Sun: filaments, prominences Sun: flares

Moderate electron–spin interaction in Fe-intercalated NbSe_(2)

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chinese Physics B 2025年第1期34卷 451-456页

作者： Qiao-Yu Liu Jian-Li Bai Qing-Xin Dong Li-Bo Zhang Jing-Wen Cheng Pin-Yu Liu Cun-Dong Li Yu Huang Ying-Rui Sun Zhi-An Ren Gen-Fu Chen Institute of Physics and Beijing National Laboratory for Condensed Matter Physics Chinese Academy of SciencesBeijing 100190China School of Physical sciences University of Chinese Academy of SciencesBeijing 100049China Songshan Lake Materials Laboratory Dongguan 523808China

The interaction between charge and spin degrees of freedom has always been the central issue of condensed matter physics,and transition metal dichalcogenides(TMDs)provide an ideal platform to study it benefiting from their highly tunable *** this article,the influence of Fe intercalation in NbSe_(2)was elaborately investigated using a combination of *** studies have shown that the insertion of Fe atoms induces an antiferromagnetic state in which the easy axis aligns out of the *** sign reversal of the magnetoresistance across the Neel temperature can be satisfactorily explained by the moderate interaction between electrons and local *** Hall and Seebeck measurements reveal a multi-band nature,and the contribution of various phonon scattering processes is discussed based on the thermal conductivity and specific heat data.

关键词： transition metal dichalcogenide intercalation spin-electron interaction

半透明有机太阳能电池器件工程的最新进展（英文）

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science China Materials 2025年

作者：朱陈宇杰郑昊霖赵垄堂朱晓张 Beijing National Laboratory for Molecular sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences School of Chemical sciences University of Chinese Academy of Sciences School of Chemistry College of Science and Engineering University of Edinburgh

半透明有机光伏(ST-OPV)是一种新型的绿色能源获取技术,是有机光伏应用中最有前景的领域之一.由于其活性层材料本征的吸收光谱可调特性,质轻可柔, ST-OPV与无机光伏相比,在可穿戴设备、自供电温室屋顶和建筑集成光伏一体化等方面具有独...

半透明有机光伏(ST-OPV)是一种新型的绿色能源获取技术,是有机光伏应用中最有前景的领域之一.由于其活性层材料本征的吸收光谱可调特性,质轻可柔, ST-OPV与无机光伏相比,在可穿戴设备、自供电温室屋顶和建筑集成光伏一体化等方面具有独特的潜力.为了进一步提高ST-OPV的实用性,提升光利用效率(LUE)仍然是研究的重点.因此,本文从半透明器件理论模型、透明顶电极材料、光学修饰策略和活性层材料选择等方面回顾了ST-OPV的研究进展,希望为STOPV的研究提供一定的借鉴.

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Study on the One-year Accuracy of Pulsar Time-scale

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Research in Astronomy and Astrophysics 2025年第1期25卷 282-296页

作者： Linlin Wang Zhehao Zhang Chengshi Zhao Zongke Li Minglei Tong National Time Service Center Chinese Academy of Sciences Key Laboratory of Time Reference and Applications Chinese Academy of Sciences University of chinese academy of sciences

Determining accurate pulsar timing model parameters is essential for establishing TT(PT), a realization of Terrestrial Time (TT) based on a pulsar timescale (PT). This study discusses the impact of different data spans on the accuracy of pulsar timing model parameters when determining pulsar timing model parameters. Using observations of PSR J0437-4715, J1909-3744, J1713+0747, and J1744-1134 from the second data release of the International Pulsar Timing Array (IPTA II, Version A), we compare the accuracy of the timing model parameters determined by these observations with different data spans. The results show for PSR J0437-4715, J1713+0747,and J1909-3744, the amplitude fluctuations of rotational frequency remain within 10-15, 10-14, and 10-14Hz,respectively, when the data spans for determining pulsar timing model parameters exceed 13, 14, and 6 ***, the one-year accuracy of TT(PT) is crucial for its application in timekeeping. By comparing the frequency deviations of TT(PT) relative to TT(BIPM) under both ideal (kr) and actual (kp) conditions across different data spans, we find that when the data span reaches the duration above, the accuracy of TT(PT) surpasses that of TT(TAI) under ideal conditions, slightly inferior under actual conditions. This suggests with improved observational technologies, the accuracy of TT(PT) can be further enhanced.

关键词： (stars:) pulsars: individual (PSRs J1909-3744, J1713+0747, J0437-4715, J1744-1134) methods: data analysis time

Intensity enhancement of Raman active and forbidden modes induced by naturally occurred hot spot at GaAs edge

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chinese Physics B 2025年第1期34卷 180-187页

作者： Tao Liu Miao-Ling Lin Da Meng Xin Cong Qiang Kan Jiang-Bin Wu Ping-Heng Tan State Key Laboratory of Semiconductor Physics and Chip Technologies Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China Center of Materials science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Optoelectronic Materials and Devices Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China

Edge structures are ubiquitous in the processing and fabrication of various optoelectronic *** physical properties and enhanced light–matter interactions are anticipated to occur at crystal edges due to the broken spatial translational ***,the intensity of first-order Raman scattering at crystal edges has been rarely explored,although the mechanical stress and edge characteristics have been thoroughly studied by the Raman peak shift and the spectral features of the edge-related Raman ***,by taking Ga As crystal with a well-defined edge as an example,we reveal the intensity enhancement of Raman-active modes and the emergence of Raman-forbidden modes under specific polarization configurations at the *** is attributed to the presence of a hot spot at the edge due to the redistributed electromagnetic fields and electromagnetic wave propagations of incident laser and Raman signal near the edge,which are confirmed by the finite-difference time-domain ***-resolved Raman intensities of both Raman-active and Raman-forbidden modes near the edge are calculated based on the redistributed electromagnetic fields,which quantitatively reproduce the corresponding experimental *** findings offer new insights into the intensity enhancement of Raman scattering at crystal edges and present a new avenue to manipulate light–matter interactions of crystal by manufacturing various types of edges and to characterize the edge structures in photonic and optoelectronic devices.

关键词： polarized Raman spectroscopy edge enhanced Raman scattering spatial translational symmetry breaking electromagnetic field redistribution finite-difference time-domain simulation

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一维范德华原子链材料的研究进展（英文）

science China Materials 2025年

作者：占鹏鑫贺平王子珂罗灵心崔雪萍郑健 Beijing National Laboratory for Molecular sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences University of chinese academy of sciences

由于量子限域效应的影响,石墨烯等二维(2D)材料表现出独特而卓越的性能,突显了低维材料在基础研究和实际应用中的重要性.这导致人们对具有更低维度的一维(1D)范德华原子链材料抱有很高的期望.与二维材料相比,一维范德华原子链在两个维...

由于量子限域效应的影响,石墨烯等二维(2D)材料表现出独特而卓越的性能,突显了低维材料在基础研究和实际应用中的重要性.这导致人们对具有更低维度的一维(1D)范德华原子链材料抱有很高的期望.与二维材料相比,一维范德华原子链在两个维度上都达到了物理极限,从而产生了更明显的量子限域效应,引发了意想不到的物理现象,并将建立一个全新的探索领域.本文综述了一维范德华原子链材料的研究进展.首先,我们总结了一维范德华原子链材料的各种类型和结构.随后,我们讨论了他们的制备和表征方法.最后,我们展望了一维范德华原子链材料在未来发展中将面临的挑战以及机遇.

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