Accounts of materials research最新文献

{"title":"Advancing Thermal Management Technology for Power Semiconductors through Materials and Interface Engineering","authors":"Man Li, Suixuan Li, Zhihan Zhang, Chuanjin Su, Bryce Wong, Yongjie Hu","doi":"10.1021/accountsmr.4c00349","DOIUrl":"https://doi.org/10.1021/accountsmr.4c00349","url":null,"abstract":"Power semiconductors and chips are essential in modern electronics, driving applications from personal devices and data centers to energy technologies, vehicles, and Internet infrastructure. However, efficient heat dissipation remains a critical challenge, directly affecting their performance, reliability, and lifespan. High-power electronics based on wide- and ultrawide-bandgap semiconductors can exhibit power densities exceeding 10 kW/cm², hundreds of times higher than digital electronics, posing significant thermal management challenges. Addressing this issue requires advanced materials and interface engineering, alongside a comprehensive understanding of materials physics, chemistry, transport dynamics, and various electronic, thermal, and mechanical properties.","PeriodicalId":72040,"journal":{"name":"Accounts of materials research","volume":"59 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143798531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancing Thermal Management Technology for Power Semiconductors through Materials and Interface Engineering","authors":"Man Li, Suixuan Li, Zhihan Zhang, Chuanjin Su, Bryce Wong and Yongjie Hu*, ","doi":"10.1021/accountsmr.4c0034910.1021/accountsmr.4c00349","DOIUrl":"https://doi.org/10.1021/accountsmr.4c00349https://doi.org/10.1021/accountsmr.4c00349","url":null,"abstract":"<p >Power semiconductors and chips are essential in modern electronics, driving applications from personal devices and data centers to energy technologies, vehicles, and Internet infrastructure. However, efficient heat dissipation remains a critical challenge, directly affecting their performance, reliability, and lifespan. High-power electronics based on wide- and ultrawide-bandgap semiconductors can exhibit power densities exceeding 10 kW/cm<sup>2</sup>, hundreds of times higher than digital electronics, posing significant thermal management challenges. Addressing this issue requires advanced materials and interface engineering, alongside a comprehensive understanding of materials physics, chemistry, transport dynamics, and various electronic, thermal, and mechanical properties.</p><p >Despite progress in thermal management solutions, the complex interplay of phonons, electrons, and their interactions with material lattices, defects, boundaries, and interfaces presents persistent challenges. This Account highlights key advancements in thermal management for power semiconductors and chips, with a focus on our group’s recent contributions. Our approach addresses several critical issues: (1) developing materials with ultrahigh thermal conductivity for enhanced heat dissipation, (2) reducing thermal boundary resistance between power semiconductors and emerging 2D materials, (3) improving thermal and mechanical contacts between chips and heat sinks, (4) innovating dynamic thermal management solutions, and (5) exploring novel principles of thermal transport and design for future technologies.</p><p >Our research philosophy integrates multiscale theoretical predictions with experimental validation to achieve a paradigm shift in thermal management. By leveraging first-principles calculations, the recent studies redefined traditional criteria for high-thermal-conductivity materials. Guided by these insights, we developed boron arsenide and boron phosphide, which exhibit record-high thermal conductivities of up to 1300 W/mK. Through phonon band structure engineering, we reduced TBR in GaN/BAs interfaces by over 8-fold compared to GaN/diamond interfaces. The combination of low TBR and high thermal conductivity significantly reduced hotspot temperatures, setting new benchmarks in thermal design for power electronics.</p><p >We further explored the anisotropic TBR properties of two-dimensional materials and Moiré patterns in twisted graphene, expanding the thermal design landscape. To address challenges at device–heat sink interfaces, we developed self-assembled boron arsenide composites with a thermal conductivity of 21 W/mK and exceptional mechanical compliance (∼100 kPa). These composites provide promising solutions for thermal management in flexible electronics and soft robotics.</p><p >In dynamic thermal management, we pioneered the concept of solid-state thermal transistors, enabling electrically controlled heat flow with unparalleled tunability, spee","PeriodicalId":72040,"journal":{"name":"Accounts of materials research","volume":"6 5","pages":"563–576 563–576"},"PeriodicalIF":14.0,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/accountsmr.4c00349","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"2D Perovskite Oxides toward High-Performance Ultraviolet Photodetection","authors":"Ming Deng,&nbsp; and ,&nbsp;Xiaosheng Fang*,&nbsp;","doi":"10.1021/accountsmr.5c0001410.1021/accountsmr.5c00014","DOIUrl":"https://doi.org/10.1021/accountsmr.5c00014https://doi.org/10.1021/accountsmr.5c00014","url":null,"abstract":"<p >Ultraviolet (UV) light, spanning wavelengths from 10 to 400 nm, is ubiquitous in military, livelihood, and scientific domains. Accurate UV photodetection is therefore essential for monitoring environmental radiation, safeguarding human health, and advancing technological applications in fields such as aerospace, medical science, and ecology. The fabrication of high-performance UV photodetection devices fundamentally depends on the development of high-sensitivity UV photosensitive materials. The evolution of UV photodetection materials has progressed from early wide-bandgap semiconductors like ZnS and ZnSe to third-generation semiconductors such as GaN and Ga₂O₃, and most recently to two-dimensional (2D) wide-bandgap materials that combine exceptional optoelectronic properties with compelling physicochemical properties. Among these, 2D perovskite oxides stand out due to their prominent advantages for UV detection. First, this large family of materials generally features wide bandgaps, strong UV absorption, and high spectral selectivity. Second, the tunable bandgaps of 2D perovskite oxides enable precise detection at specific wavelengths. Third, their excellent processability and flexibility facilitate feasible integration into devices, making them promising candidates for flexible photodetectors. Furthermore, 2D perovskite oxides boast other properties such as high stability, dielectricity, ferroelectricity, and biocompatibility. These characteristics have promoted the blossoming of 2D perovskite oxides for high-performance UV photodetection and are poised to expand their applications in novel functional optoelectronics.</p><p >In this Account, we systematically review the development of 2D perovskite oxides, with a focus on their application in the fabrication of high-performance UV photodetectors. First, we describe the top-down synthesis of these materials, highlighting key advances in synthesis techniques. Second, we specifically analyze the intrinsic advantages of 2D perovskite oxides which render them highly suitable for UV detection. Third, we discuss recent progress in the fabrication of UV photodetectors based on 2D perovskite oxides, emphasizing effective strategies for achieving high-performance devices. Next, we explore state-of-the-art optoelectronic applications leveraging these materials. Finally, we present our perspectives on the future development of this promising class of UV-sensitive materials. Given their remarkable material diversity, we believe that this Account will provide valuable insights to guide future research and the application of 2D perovskite oxides in high-performance UV photodetectors and functional optoelectronics.</p>","PeriodicalId":72040,"journal":{"name":"Accounts of materials research","volume":"6 5","pages":"615–626 615–626"},"PeriodicalIF":14.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and Development of Fire-Safety Materials in Artificial Intelligence Era","authors":"Teng Fu,&nbsp; and ,&nbsp;Yu-Zhong Wang*,&nbsp;","doi":"10.1021/accountsmr.5c0006510.1021/accountsmr.5c00065","DOIUrl":"https://doi.org/10.1021/accountsmr.5c00065https://doi.org/10.1021/accountsmr.5c00065","url":null,"abstract":"","PeriodicalId":72040,"journal":{"name":"Accounts of materials research","volume":"6 5","pages":"544–549 544–549"},"PeriodicalIF":14.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"2D Perovskite Oxides toward High-Performance Ultraviolet Photodetection","authors":"Ming Deng, Xiaosheng Fang","doi":"10.1021/accountsmr.5c00014","DOIUrl":"https://doi.org/10.1021/accountsmr.5c00014","url":null,"abstract":"Ultraviolet (UV) light, spanning wavelengths from 10 to 400 nm, is ubiquitous in military, livelihood, and scientific domains. Accurate UV photodetection is therefore essential for monitoring environmental radiation, safeguarding human health, and advancing technological applications in fields such as aerospace, medical science, and ecology. The fabrication of high-performance UV photodetection devices fundamentally depends on the development of high-sensitivity UV photosensitive materials. The evolution of UV photodetection materials has progressed from early wide-bandgap semiconductors like ZnS and ZnSe to third-generation semiconductors such as GaN and Ga₂O₃, and most recently to two-dimensional (2D) wide-bandgap materials that combine exceptional optoelectronic properties with compelling physicochemical properties. Among these, 2D perovskite oxides stand out due to their prominent advantages for UV detection. First, this large family of materials generally features wide bandgaps, strong UV absorption, and high spectral selectivity. Second, the tunable bandgaps of 2D perovskite oxides enable precise detection at specific wavelengths. Third, their excellent processability and flexibility facilitate feasible integration into devices, making them promising candidates for flexible photodetectors. Furthermore, 2D perovskite oxides boast other properties such as high stability, dielectricity, ferroelectricity, and biocompatibility. These characteristics have promoted the blossoming of 2D perovskite oxides for high-performance UV photodetection and are poised to expand their applications in novel functional optoelectronics.","PeriodicalId":72040,"journal":{"name":"Accounts of materials research","volume":"103 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and Development of Fire-Safety Materials in Artificial Intelligence Era","authors":"Teng Fu, Yu-Zhong Wang","doi":"10.1021/accountsmr.5c00065","DOIUrl":"https://doi.org/10.1021/accountsmr.5c00065","url":null,"abstract":"Figure 1. (a) Previous methods for deducing mechanism and (b) our proposed novel approach for revealing the real burning behavior and flame-retardant mechanism. Figure 2. (a) Illustration of the previous structure–activity relationship theory and (b) our proposed theoretical flame retardancy model based on the flame-retardant roles. Figure 3. AI-assistant self-iterative, high-throughput, and generalizable flame-retardant material design framework. Traditional flame retardants and flame-retardant polymeric materials struggle to meet the stringent requirements of emerging areas. For instance, fire incidents involving new energy vehicles, extreme wildfires, and hydrogen fuel cells, etc. present extreme conditions with higher temperatures and greater heat flux, demanding enhanced thermal stability and heat shock resistance in flame-retardant polymeric materials. Additionally, materials used in ultrahigh-voltage electrical systems must withstand extreme voltages and large currents, necessitating improved electrical insulation and thermal stability to ensure operational safety and reliability. Some halogen-based and certain phosphorus-based flame retardants are still associated with persistent, bioaccumulative, and toxic (PBT) hazards. (25−27) Future research should prioritize the development of low-toxicity, low-pollution flame-retardant solutions that minimize environmental accumulation risks while preventing the release of hazardous gases or persistent pollutants during combustion. Traditional flame retardants are primarily derived from nonrenewable fossil resources, which conflicts with carbon neutrality and sustainability goals. Future research should explore the use of renewable biomass resources, such as polysaccharides, lignin, and proteins, to develop efficient and low-carbon flame retardants. Flame retardants are typically incorporated into polymeric materials through physical or chemical means, where incorporating flame-retardant elements often complicates waste management by limiting material reuse and increasing environmental impact. (28) Therefore, considering the recyclability of flame-retardant polymeric materials in the initial material design or the physical/chemical/biological recovery of the discarded flame-retardant polymeric materials is necessary to reduce the impact on the environment and improve resource utilization. Figure 4. AI-assistant material design framework applying to flame retardant or flame-retardant materials research. T.F. and Y.-Z.W. discussed the topic and proposed the outline, wrote the draft, and revised the manuscript. Teng Fu received his Ph.D. in polymer chemistry and physics in 2019 from Sichuan University. He joined Professor Yu-Zhong Wang’s group in 2019, and now he is a researcher at Sichuan University. His current research interests are focused on fire-safety materials, devices and apparatus. Yu-Zhong Wang received his Ph.D. from Sichuan University in 1994 and became a Full Professor of Sichuan Universi","PeriodicalId":72040,"journal":{"name":"Accounts of materials research","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"Keunhyuk Ryu,&nbsp;Gang Li,&nbsp;Keyi Zhang,&nbsp;Jianguo Guan*,&nbsp;Yi Long* and ZhiLi Dong*,&nbsp;","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":72040,"journal":{"name":"Accounts of materials research","volume":"6 3","pages":"XXX-XXX XXX-XXX"},"PeriodicalIF":14.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/accountsmr.5c00007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144438942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"Shahid Ameen,&nbsp;Myeongjae Lee,&nbsp;Moon Sung Kang,&nbsp;Jeong Ho Cho and BongSoo Kim*,&nbsp;","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":72040,"journal":{"name":"Accounts of materials research","volume":"6 3","pages":"XXX-XXX XXX-XXX"},"PeriodicalIF":14.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/accountsmr.4c00365","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144438947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":72040,"journal":{"name":"Accounts of materials research","volume":"6 3","pages":"XXX-XXX XXX-XXX"},"PeriodicalIF":14.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/mrv006i003_1917232","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144438951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"Lixin Jiang,&nbsp;Lang Qin,&nbsp;Feng Pan and Yanlei Yu*,&nbsp;","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":72040,"journal":{"name":"Accounts of materials research","volume":"6 3","pages":"XXX-XXX XXX-XXX"},"PeriodicalIF":14.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/accountsmr.4c00318","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144342842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}