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IF 22.7 1区 材料科学
Infomat Pub Date : 2024-11-21 DOI: 10.1002/inf2.12647
Guoyi Li, Shenghong Li, Jahangeer Ahmed, Wei Tian, Liang Li
{"title":"Back cover image","authors":"Guoyi Li,&nbsp;Shenghong Li,&nbsp;Jahangeer Ahmed,&nbsp;Wei Tian,&nbsp;Liang Li","doi":"10.1002/inf2.12647","DOIUrl":"https://doi.org/10.1002/inf2.12647","url":null,"abstract":"<p>A flexible perovskite photodetector with room-temperature self-healing function without external trigger is developed. A crosslinked polyurethane network is filled to the grain boundary of perovskite film, which not only improves the crystal quality of perovskite and mechanical stability but also enables flexible perovskite photodetectors to self-heal at room temperature.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"6 11","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/inf2.12647","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142708013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transferable, highly crystalline covellite membrane for multifunctional thermoelectric systems
IF 22.7 1区 材料科学
Infomat Pub Date : 2024-10-16 DOI: 10.1002/inf2.12626
Myungwoo Choi, Geonhee Lee, Yea-Lee Lee, Hyejeong Lee, Jin-Hoon Yang, Hanhwi Jang, Hyeonseok Han, MinSoung Kang, Seonggwang Yoo, A-Rang Jang, Yong Suk Oh, Inkyu Park, Min-Wook Oh, Hosun Shin, Seokwoo Jeon, Jeong-O Lee, Donghwi Cho
{"title":"Transferable, highly crystalline covellite membrane for multifunctional thermoelectric systems","authors":"Myungwoo Choi,&nbsp;Geonhee Lee,&nbsp;Yea-Lee Lee,&nbsp;Hyejeong Lee,&nbsp;Jin-Hoon Yang,&nbsp;Hanhwi Jang,&nbsp;Hyeonseok Han,&nbsp;MinSoung Kang,&nbsp;Seonggwang Yoo,&nbsp;A-Rang Jang,&nbsp;Yong Suk Oh,&nbsp;Inkyu Park,&nbsp;Min-Wook Oh,&nbsp;Hosun Shin,&nbsp;Seokwoo Jeon,&nbsp;Jeong-O Lee,&nbsp;Donghwi Cho","doi":"10.1002/inf2.12626","DOIUrl":"https://doi.org/10.1002/inf2.12626","url":null,"abstract":"<p>Emerging freestanding membrane technologies, especially using inorganic thermoelectric materials, demonstrate the potential for advanced thermoelectric platforms. However, using rare and toxic elements during material processing must be circumvented. Herein, we present a scalable method for synthesizing highly crystalline CuS membranes for thermoelectric applications. By sulfurizing crystalline Cu, we produce a highly percolated and easily transferable network of submicron CuS rods. The CuS membrane effectively separates thermal and electrical properties to achieve a power factor of 0.50 mW m<sup>−1</sup> K<sup>−2</sup> and thermal conductivity of 0.37 W m<sup>−1</sup> K<sup>−1</sup> at 650 K (estimated value). This yields a record-high dimensionless figure-of-merit of 0.91 at 650 K (estimated value) for covellite. Moreover, integrating 12 CuS devices into a module resulted in a power generation of ~4 μW at Δ<i>T</i> of 40 K despite using a straightforward configuration with only p-type CuS. Furthermore, based on the temperature-dependent electrical characteristics of CuS, we develop a wearable temperature sensor with antibacterial properties.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"6 11","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/inf2.12626","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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IF 22.7 1区 材料科学
Infomat Pub Date : 2024-09-25 DOI: 10.1002/inf2.12633
Heping Zhao, Yuewei Li, Chao Mi, Yingzhu Zi, Xue Bai, Asif Ali Haider, Yangke Cun, Anjun Huang, Yue Liu, Jianbei Qiu, Zhiguo Song, Jiayan Liao, Ji Zhou, Zhengwen Yang
{"title":"Back cover image","authors":"Heping Zhao,&nbsp;Yuewei Li,&nbsp;Chao Mi,&nbsp;Yingzhu Zi,&nbsp;Xue Bai,&nbsp;Asif Ali Haider,&nbsp;Yangke Cun,&nbsp;Anjun Huang,&nbsp;Yue Liu,&nbsp;Jianbei Qiu,&nbsp;Zhiguo Song,&nbsp;Jiayan Liao,&nbsp;Ji Zhou,&nbsp;Zhengwen Yang","doi":"10.1002/inf2.12633","DOIUrl":"https://doi.org/10.1002/inf2.12633","url":null,"abstract":"<p>A novel strategy explores the reversible modulation of visible and NIR luminescence in rare earth ion-doped photochromic bismuth-based glasses for information encryption and multi-dimensional optical storage.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"6 9","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/inf2.12633","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142324451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Miniature and cost-effective self-powered triboelectric sensing system toward rapid detection of puerarin concentration 用于快速检测葛根素浓度的微型、经济高效的自供电三电传感系统
IF 22.7 1区 材料科学
Infomat Pub Date : 2024-09-16 DOI: 10.1002/inf2.12624
Chang Su, Jiajia Shao, Zeyang Yu, Al Mahadi Hasan, Chengmin Bao, Chris R. Bowen, Chuanbo Li, Zhong Lin Wang, Ya Yang
{"title":"Miniature and cost-effective self-powered triboelectric sensing system toward rapid detection of puerarin concentration","authors":"Chang Su, Jiajia Shao, Zeyang Yu, Al Mahadi Hasan, Chengmin Bao, Chris R. Bowen, Chuanbo Li, Zhong Lin Wang, Ya Yang","doi":"10.1002/inf2.12624","DOIUrl":"https://doi.org/10.1002/inf2.12624","url":null,"abstract":"The detection of puerarin concentration is an essential capability to study the functional role of the Pueraria root as a natural medicine and dietary source in the treatment of cardiovascular diseases and liver protection. Current methods to detect and measure puerarin concentration, such as ultraviolet–visible spectrophotometry (UV), are bulky, require an external power supply, and are inconvenient to use. Here, we propose a triboelectric puerarin-detecting sensor (TPDS) which is based on liquid–solid contact electrification, in which liquid–solid interactions generate rapid electrical signals in only 0.4 ms to enable real-time detection of puerarin concentration in water droplets. The electrical signal of the TPDS decreases with an increase of puerarin concentration, and the sensitivity of the approach is 520 V·(μg/mL)<sup>−1</sup>. The TPDS represents a miniature and cost-effective sensor that is 0.2% of the size and 0.01% of the cost of a UV spectrophotometer. Our theoretical analysis verified that the puerarin concentration in droplets can effectively regulate the electronic structure, where higher concentrations of puerarin lead to a narrower energy bandgap, which allows the TPDS to detect puerarin concentration without the need for an external power supply. The TPDS therefore provides a route for the development of a portable and self-powered method to measure the concentration of an active ingredient in droplets through the conversion of natural energy.","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"51 1","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142264967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Continuous synthesis of metal oxide-supported high-entropy alloy nanoparticles with remarkable durability and catalytic activity in the hydrogen reduction reaction 在氢还原反应中连续合成具有显著耐久性和催化活性的金属氧化物支撑高熵合金纳米粒子
IF 22.7 1区 材料科学
Infomat Pub Date : 2024-09-09 DOI: 10.1002/inf2.12617
Wail Al Zoubi, Stefano Leoni, Bassem Assfour, Abdul Wahab Allaf, Jee-Hyun Kang, Young Gun Ko
{"title":"Continuous synthesis of metal oxide-supported high-entropy alloy nanoparticles with remarkable durability and catalytic activity in the hydrogen reduction reaction","authors":"Wail Al Zoubi, Stefano Leoni, Bassem Assfour, Abdul Wahab Allaf, Jee-Hyun Kang, Young Gun Ko","doi":"10.1002/inf2.12617","DOIUrl":"https://doi.org/10.1002/inf2.12617","url":null,"abstract":"Metal oxide-supported multielement alloy nanoparticles are very promising as highly efficient and cost-effective catalysts with a virtually unlimited compositional space. However, controllable synthesis of ultrasmall multielement alloy nanoparticles (us-MEA-NPs) supported on porous metal oxides with a homogeneous elemental distribution and good catalytic stability during long-term operation is extremely challenging due to their oxidation and strong immiscibility. As a proof of concept that such synthesis can be realized, this work presents a general “bottom-up” l ultrasonic-assisted, simultaneous electro-oxidation–reduction-precipitation strategy for alloying dissimilar elements into single NPs on a porous support. One characteristic of this technique is uniform mixing, which results from simultaneous rapid thermal decomposition and reduction and leads to multielement liquid droplet solidification without aggregation. This process was achieved through a synergistic combination of enhanced electrochemical and plasma-chemical phenomena at the metal–electrolyte interface (electron energy of 0.3–1.38 eV at a peak temperature of 3000 K reached within seconds at a rate of ~105 K per second) in an aqueous solution under an ultrasonic field (40 kHz). Illustrating the effectiveness of this approach, the CuAgNiFeCoRuMn@MgO-P3000 catalyst exhibited exceptional catalytic efficiency in selective hydrogenation of nitro compounds, with over 99% chemoselectivity and nearly 100% conversion within 60 s and no decrease in catalytic activity even after 40 cycles (&gt;98% conversion in 120 s). Our results provide an effective, transferable method for rationally designing supported MEA-NP catalysts at the atomic level and pave the way for a wide variety of catalytic reactions.","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"13 1","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142185438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Computing imaging in shortwave infrared bands enabled by MoTe2/Si 2D-3D heterojunction-based photodiode 基于 MoTe2/Si 2D-3D 异质结的光电二极管可实现短波红外波段的计算成像
IF 22.7 1区 材料科学
Infomat Pub Date : 2024-08-27 DOI: 10.1002/inf2.12618
Dongfeng Shi, Jiawang Chen, Menglei Zhu, Zijun Guo, Zixin He, Ming Li, Di Wu, Yingjian Wang, Liang Li
{"title":"Computing imaging in shortwave infrared bands enabled by MoTe2/Si 2D-3D heterojunction-based photodiode","authors":"Dongfeng Shi, Jiawang Chen, Menglei Zhu, Zijun Guo, Zixin He, Ming Li, Di Wu, Yingjian Wang, Liang Li","doi":"10.1002/inf2.12618","DOIUrl":"https://doi.org/10.1002/inf2.12618","url":null,"abstract":"Breakthroughs brought about by two-dimensional (2D) materials in the field of photodetection have opened up new possibilities in infrared imaging. However, challenges still exist in fabricating high-density detector arrays using such materials, which are essential for traditional imaging systems. In this study, we present a state-of-the-art computing imaging system that utilizes a MoTe<sub>2</sub>/Si self-powered photodetector coupled with flexible Hadamard modulation algorithms. This system demonstrates remarkable capability to produce high-quality images in the shortwave infrared (SWIR) band, surpassing the capabilities of devices based on alternative material systems. The exceptional infrared imaging capability primarily stems from the MoTe<sub>2</sub>/Si photodetector's inherent features, including an ultra-wide spectral range (265–1550 nm) and extremely high sensitivity (linear dynamic range (LDR) up to 123 dB, responsivity (<i>R</i>) up to 0.33 A W<sup>–1</sup>, external quantum efficiency (EQE) up to 43% and a specific detectivity (<i>D</i>*) exceeding 2.9 × 10<sup>11</sup> Jones). Moreover, the imaging system demonstrates the ability to achieve high-quality edge imaging of objects in the SWIR band (1550 nm), even in strong scattering environments and under low sampling rate conditions (sampling rate of 25%). We believe that this work will effectively advance the application scope of 2D materials in the field of computational imaging in SWIR bands.","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"27 1","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bifunctional self-segregated electrolyte realizing high-performance zinc-iodine batteries 实现高性能锌碘电池的双功能自分离电解质
IF 22.7 1区 材料科学
Infomat Pub Date : 2024-08-27 DOI: 10.1002/inf2.12620
Xueting Hu, Zequan Zhao, Yongqiang Yang, Hao Zhang, Guojun Lai, Bingan Lu, Peng Zhou, Lina Chen, Jiang Zhou
{"title":"Bifunctional self-segregated electrolyte realizing high-performance zinc-iodine batteries","authors":"Xueting Hu, Zequan Zhao, Yongqiang Yang, Hao Zhang, Guojun Lai, Bingan Lu, Peng Zhou, Lina Chen, Jiang Zhou","doi":"10.1002/inf2.12620","DOIUrl":"https://doi.org/10.1002/inf2.12620","url":null,"abstract":"Static rechargeable zinc-iodine (Zn-I<sub>2</sub>) batteries are superior in safety, cost-effectiveness, and sustainability, giving them great potential for large-scale energy storage applications. However, the shuttle effect of polyiodides on the cathode and the unstable anode/electrolyte interface hinder the development of Zn-I<sub>2</sub> batteries. Herein, a self-segregated biphasic electrolyte (SSBE) was proposed to synergistically address those issues. The strong interaction between polyiodides and the organic phase was demonstrated to limit the shuttle effect of polyiodides. Meanwhile, the hybridization of polar organic solvent in the inorganic phase modulated the bonding structure, as well as the effective weakening of water activity, optimizing the interface during zinc electroplating. As a result, the Zn-I<sub>2</sub> coin cells performed a capacity retention of nearly 100% after 4000 cycles at 2 mA cm<sup>−2</sup>. And a discharge capacity of 0.6 Ah with no degradation after 180 cycles was achieved in the pouch cell. A photovoltaic energy storage battery was further achieved and displayed a cumulative capacity of 5.85 Ah. The successfully designed energy storage device exhibits the application potential of Zn-I<sub>2</sub> batteries for stationary energy storage.","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"27 1","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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IF 22.7 1区 材料科学
Infomat Pub Date : 2024-08-21 DOI: 10.1002/inf2.12622
Qiang Wang, Yachuan Wang, Yankun Wang, Luyue Jiang, Jinyan Zhao, Zhitang Song, Jinshun Bi, Libo Zhao, Zhuangde Jiang, Jutta Schwarzkopf, Shengli Wu, Bin Zhang, Wei Ren, Sannian Song, Gang Niu
{"title":"Back cover image","authors":"Qiang Wang,&nbsp;Yachuan Wang,&nbsp;Yankun Wang,&nbsp;Luyue Jiang,&nbsp;Jinyan Zhao,&nbsp;Zhitang Song,&nbsp;Jinshun Bi,&nbsp;Libo Zhao,&nbsp;Zhuangde Jiang,&nbsp;Jutta Schwarzkopf,&nbsp;Shengli Wu,&nbsp;Bin Zhang,&nbsp;Wei Ren,&nbsp;Sannian Song,&nbsp;Gang Niu","doi":"10.1002/inf2.12622","DOIUrl":"https://doi.org/10.1002/inf2.12622","url":null,"abstract":"<p>Hardware neuromorphic computing based on phase-change random access memories brings about a spring of artificial intelligence.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"6 8","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/inf2.12622","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142041642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Promoting uniform lithium deposition with Janus gel polymer electrolytes enabling stable lithium metal batteries 利用 Janus 凝胶聚合物电解质促进锂的均匀沉积,实现稳定的锂金属电池
IF 22.7 1区 材料科学
Infomat Pub Date : 2024-08-14 DOI: 10.1002/inf2.12551
Lin Wang, Shugang Xu, Zihui Song, Wanyuan Jiang, Shouhai Zhang, Xigao Jian, Fangyuan Hu
{"title":"Promoting uniform lithium deposition with Janus gel polymer electrolytes enabling stable lithium metal batteries","authors":"Lin Wang,&nbsp;Shugang Xu,&nbsp;Zihui Song,&nbsp;Wanyuan Jiang,&nbsp;Shouhai Zhang,&nbsp;Xigao Jian,&nbsp;Fangyuan Hu","doi":"10.1002/inf2.12551","DOIUrl":"10.1002/inf2.12551","url":null,"abstract":"<p>Lithium metal batteries (LMBs) are desirable candidates owing to their high-energy advantage for next-generation batteries. However, the practical application of LMBs continues to be constrained by thorny safety issues with the formation and growth of Li dendrites. Herein, the ZIF-67 MOFs are in situ coupled onto a single face of 3D porous nanofiber to fabricate an asymmetric Janus membrane, harnessing their anion adsorption capabilities to promote the uniform deposition of Li ions. In addition, the poly(ethylene glycol) diacrylate and trifluoromethyl methacrylate are introduced into nanofiber skeleton to form Janus@GPE, which preferentially reacts with Li metal to form a LiF-rich stable SEI layer to inhibit Li dendrite growth. Importantly, the synergistic effect of the MOFs and stable solid electrolyte interphase (SEI) layer results in superior cycling performance, achieving a remarkable 2500 h cycling at 1 mA cm<sup>−2</sup> in the Li/Janus@GPE/Li configuration. In addition, the Janus@GPE electrolyte has a certain flame retardant, which can self-extinguish within 3 s, improving the safety performance of the batteries. Consequently, the Li/Janus@GPE/LFP flexible pouch cell exhibits favorable cycling stability (the capacity retention rate of 45 cycles is 91.8% at 0.1 C). This work provides new insights and strategies to improve the safety and practical utility of LMBs.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"6 10","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/inf2.12551","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142185442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rational composition engineering for high-quality Pb–Sn photodetector toward sensitive near-infrared digital imaging arrays 面向灵敏近红外数字成像阵列的高质量铅锑光电探测器的合理成分工程设计
IF 22.7 1区 材料科学
Infomat Pub Date : 2024-08-13 DOI: 10.1002/inf2.12615
Huan Li, Yu Gao, Xin Hong, Kanghui Ke, Zilong Ye, Siwei Zhang, Kefei Shi, Zhuo Peng, Hao Yan, Man-Chung Tang, Youwei Yao, Ben Zhong Tang, Guodan Wei, Feiyu Kang
{"title":"Rational composition engineering for high-quality Pb–Sn photodetector toward sensitive near-infrared digital imaging arrays","authors":"Huan Li, Yu Gao, Xin Hong, Kanghui Ke, Zilong Ye, Siwei Zhang, Kefei Shi, Zhuo Peng, Hao Yan, Man-Chung Tang, Youwei Yao, Ben Zhong Tang, Guodan Wei, Feiyu Kang","doi":"10.1002/inf2.12615","DOIUrl":"https://doi.org/10.1002/inf2.12615","url":null,"abstract":"Broadband photodetectors (PDs) capable of multi-wavelength detection have garnered significant interest for applications in environmental monitoring, optical communication, spectral analysis, and imaging sensing. Low-bandgap Pb–Sn hybrid perovskite photodetectors can extend the spectral response from the ultraviolet–visible (UV–vis) range to the near-infrared (NIR) and reduce the toxicity associated with Pb<sup>2+</sup>. The strategic introduction of Sn<sup>2+</sup> into Cs<sub>0.15</sub>FA<sub>0.85</sub>Pb<sub><i>x</i></sub>Sn<sub>1−<i>x</i></sub>I<sub>3</sub> (<i>x</i> = 1, 0.8, 0.6, 0.5, 0.4, 0.2, and 0) not only preserves the cubic crystal structure with conformal multigrain growth but also broadens the film's absorption spectrum from 800 to 1000 nm NIR region. This indicates a well-controlled tunability of the Pb–Sn binary perovskite system. Specifically, the self-powered photodetector with a device structure of ITO/NiO<sub><i>x</i></sub>/PTAA/Cs<sub>0.15</sub>FA<sub>0.85</sub>Pb<sub>0.5</sub>Sn<sub>0.5</sub>I<sub>3</sub>/PCBM/BCP/Ag has shown remarkable optoelectrical properties. It exhibits a high external quantum efficiency (EQE) of up to 80% across the spectrum from 300 to 1000 nm, a responsivity (<i>R</i>) exceeding 0.5 A/W, and high detectivity (<i>D</i>*) value of 1.04 × 10<sup>12</sup> <i>Jones</i> at 910 nm and 3.38 × 10<sup>11</sup> <i>Jones</i> at 1000 nm after weak attenuation. Intriguingly, the dark current of the Cs<sub>0.15</sub>FA<sub>0.85</sub>Pb<sub>0.5</sub>Sn<sub>0.5</sub>I<sub>3</sub> device is four orders of magnitude lower than that of devices made with pristine Pb or Sn only, strongly correlating with its significantly increased built-in potential and reduced trap density. Consequently, it demonstrates a −3 dB bandwidth of 2.23 × 10<sup>4</sup> Hz, fast rise and decay times of 61 and 30 μs, respectively, and a linear dynamic range (LDR) of 155 dB. Benefiting from its high sensitivity, a 5 × 5 PD array for NIR imaging and non-invasive pulse detection for photoplethysmography applications has been successfully demonstrated, showcasing the prosperous potential of Pb–Sn hybrid perovskite in the NIR range.","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"1 1","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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