Science Advances
·
2024
·Vol. 10
·期 14
·
IF 11.7
Yingtao Zhao,Sanchuan Zhao,Xixi Pang,Anni Zhang,Chenning Li,Yuxuan Lin,Xiaomeng Du,Lei Cui,Zhenhua Yang,Tailang Hao,Chaopeng Wang,Jun Yin,Wei Xie,Jian Zhu
Flexible and stretchable thin-film transistors (TFTs) are crucial in skin-like electronics for wearable and implantable applications. Such electronics are usually constrained in performance owing to a lack of high-mobility and stretchable semiconducting channels. Tellurium, a rising semiconductor with superior charge carrier mobilities, has been limited by its intrinsic brittleness and anisotropy. Here, we achieve highly oriented arrays of tellurium nanowires (TeNWs) on various substrates with wafer-scale scalability by a facile lock-and-shear strategy. Such an assembly approach mimics the alignment process of the trailing tentacles of a swimming jellyfish. We further apply these TeNW arrays in high-mobility TFTs and logic gates with improved flexibility and stretchability. More specifically, mobilities over 100 square centimeters per volt per second and on/off ratios of ~104 are achieved in TeNW-TFTs. The TeNW-TFTs on polyethylene terephthalate can sustain an omnidirectional bending strain of 1.3% for more than 1000 cycles. Furthermore, TeNW-TFTs on an elastomeric substrate can withstand a unidirectional strain of 40% with no performance degradation.
研究领域:
材料科学
·
纳米技术
·
电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Zongfu Cai,Bo Wu,Xinxing Zhou,Kerui Li,Chengyi Hou,Qinghong Zhang,Yaogang Li,Hongzhi Wang
The demand for highly sensitive temperature-response materials is critical for the advancement of intelligent temperature sensing and fire warning systems. Despite notable progress in thermoelectrical (TE) materials and devices, designing TE materials suitable for wide-range temperature monitoring across diverse scenarios remains a challenge. In this study, we introduce a TE temperature sensor for fire warnings and hot object recognition, utilizing an all-inorganic TE film composite of reduced graphene oxide (rGO)/Te nanowires (Te NWs). The resulting all-inorganic TE film, annealed at a high temperature, exhibits distinct response ratios to varying temperature changes, enabling consistently sensitive thermosensation. The robust linear relationship between open circuit voltage and temperature difference establishes it as an effective thermoreceptor for enhanced temperature alerts. Furthermore, we demonstrate that the assembled TE sensor provides rapid high-temperature warnings with adjustable threshold voltages (1–7 mV), achieving an ultrafast response time of approximately 4.8 s at 1 mV threshold voltage. Additionally, this TE sensor can be integrated with the gloves to monitor high-temperature objects in various scenarios, such as the brewed milk in daily life and heating reactors in industrial applications. These results offer perspectives for future innovations in intelligent temperature monitoring.
研究领域:
材料科学
·
智能传感技术
✓ 已验证
DOI
PubMed
高影响因子
Nano Energy
·
2021
·
IF 17.881
Caiju Chen,Huyun Liu,Haitao Wang,Yawen Zhao,Ming Li
Solar vapor generation utilizes ubiquitous solar energy to address the issue of global water shortage. However, its large-scale field deployment is greatly hampered by inefficient solar absorption, moderate evaporation efficiency and high cost. Here, we report a new hybrid photothermal membrane, named broadband plasmonic Cu 2−x Te nanowire (bpCu 2−x Te) membrane, for interfacial solar evaporation to produce freshwater from various water sources. The bpCu 2−x Te membrane features excellent broadband solar absorption (~95.9%), high porosity and hydrophilicity , and low thermal conductivity (0.55 W/(m K)), which enables a water evaporation rate as high as 4.3 kg/(m 2 h) with the evaporation efficiency of up to 96% under 3 kW/m 2 solar irradiation . The evaporation performance of the present Cu 2−x Te membrane can be maintained even after it recycles multiple times under various solar irradiance, indicating excellent durability and stability. Efficient solar desalination of seawater is further demonstrated with the bpCu 2−x Te membrane to deliver drinkable water. The combination of scalable fabrication ability, low cost and excellent solar evaporation performance of the bpCu 2−x Te membrane highlights the potential for seawater purification and desalination in field applications.
研究领域:
材料科学
·
能源科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Materials Advances
·
2023
·Vol. 4
·期 19
·4455-4462
·
IF 5
Yanmei Ren,Rongke Sun,Xue Yu,Ruoxi Wang,Wusheng Zhang,Xiaodong Zhu,Yanqing Ma,Lei Ma
The controlled growth of tellurium (Te) nanocrystals is vital for making Te-based nanomaterials with finely tuned morphology and thermoelectric properties. Herein, to reveal the controlling parameters and their roles behind the synthesis of Te nanowire bundles (NBs), they were systematically investigated. The unveiled growth mechanism of Te-NBs is a “solid-solution-solid” transformation process from amorphous Te (a-Te) spheres to trigonal Te (t-Te) NBs. Accordingly, Te-NBs with different sizes and crystallinity have been successfully prepared by simply adjusting the reaction temperature and initial solution pH to regulate the generating rate of Te atoms and the dissolution rate of a-Te spheres. Well-ordered Te-NBs with a large width and high crystallinity can be synthesized at an optimized reaction temperature of 90 °C and an initial solution pH value of 10. The relationship between the thermoelectric properties of the Te-NB thin film (Te-NBs-TF) and the width and crystallinity of the NBs exposes that a large width and high crystallinity lead to a high thermoelectric performance of Te-NBs-TFs, and the optimized results can reach a power factor of 35.2 μW m−1 K−2 at room temperature. This work provides crucial information for the controllable synthesis of Te-NBs and a facile preparation avenue of Te-based thermoelectric films, which paves the way for future industrial applications of high-performance thermoelectric devices.
研究领域:
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
·
2019
·Vol. 21
·期 6
·1-10
·
IF 2.009
Wang Wenfang,Liu Jing,Li Xia,Jiang Qinglin,Xu Jingkun,Luo Chan,Liu Peipei,Tan Rongri,Du Yukou,Jiang Fengxing
One-dimensional silver telluride nanowires (NWs) as potential thermoelectric materials have been studied extensively. At present, most of the efforts are focused on p-type silver telluride, while limited works have been achieved on the preparation of n-type silver telluride. Herein, we prepared n-type Te/Ag 2 Te NWs by galvanic exchange reaction and fabricated a nanofilm. As a simple and cost-effective method, galvanic exchange reaction was employed to prepare n-type Te/Ag 2 Te NWs with obtained Seebeck coefficient of − 93.98 μV K −1 . The nanostructure and chemical composition as well as structural phase transition of as-prepared n-type Te/Ag 2 Te NWs were characterized and discussed. Besides, the thermoelectric thin film device consisting of n-type Te/Ag 2 Te nanofilms and p-type Ag-doped Te nanofilms obtained by one-step hydrothermal method was assembled and exhibited accessible output voltage as 65 mV at the 75 K temperature difference, which may provide the fundament for the development of inorganic thermoelectric nanofilm device.
研究领域:
材料科学
·
热电学
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2020
·Vol. 10
·期 56
·33965-33971
·
IF 3.119
Haihui Liu,Pengfei Liu,Mengqi Zhang,Zihan Tian,Ning Wang,Yanxin Liu,Xingxiang Zhang
Light-weight, mechanically flexible, transparent thermoelectric devices are promising as portable, and easy-to-integrate energy sources. Poly(3,4-ethylenedioxythiophene) nanowires (PEDOT NWs) possessing high electrical conductivity were synthesized by a facile self-assembled micellar soft-template method. And then, Te nanowires (Te NWs) with high Seebeck coefficient were easily synthesized by the solution process and then added as an inorganic filler to form the PEDOT NW/Te NW nanocomposite films via a simple and convenient vacuum filtration method. The thermoelectric (TE) properties of the nanocomposites were characterized in this research. A maximum power factor of 58.03 μW m−1 K−2 is obtained from the film containing 90 wt% Te NWs at room temperature, which is dozens of times that of the pure PEDOT NW film. This work uses the as-prepared PEDOT NWs/Te NW (90 wt%) nanocomposite film to fabricate a flexible thermoelectric generator and an output voltage of 2.8 mV was generated at a temperature difference of 13.5 K between the environment and human body.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Energy Materials
·
2018
·
IF 0
Xinzhi Hu,Kun Zhang,Jing Zhang,Shiren Wang,Yiping Qiu
In recent years, the thermoelectric properties of inorganic/polymer composites have been markedly improved. However, the enhancement mechanism in inorganic/polymer composites is still far from clear. In this work, we fabricate a novel type of thermoelectric composite by mixing high-mobility poly(3,4-ethylenedioxythiophene) nanowire with tellurium nanowire and investigate the thermoelectric properties by varying the loading of tellurium nanowires and the underlying enhancement mechanism. We find that the addition of tellurium nanowire can enhance the thermoelectric power factor of inorganic/polymer nanowire composites by ∼40%. We, for the first time, quantitatively interpret the effect of energy filtering on thermoelectric power factor enhancement in polymer inorganic composites by employing the hopping transport theory. In contrast to the series/parallel connected model, we determine that the energy filtering is more feasible to physically explain the thermoelectric enhancement. It can numerically explain the enhancement in Seebeck coefficient, electrical conductivity, and power factor. We believe it is assigned to the high carrier mobility in nanowire composites and proper energy barrier at polymer/inorganic interfaces.
研究领域:
材料科学
·
物理化学
✓ 已验证
产品关联
DOI
Nano Energy
·
2023
·
IF 17.6
Sitao Kong,Zhangfan Huang,Yang Hu,Yawei Jiang,Yuyuan Lu,Weiwei Zhao,Qiuwei Shi,Ming Yuan,Baoying Dai,Jiahui Li,Wen Jing Yang,Yannan Xie
To harvest low-grade heat energy from human body, flexible thermoelectric generators (TEGs) are highly necessitated and have attracted significant interests. However, developing novel thermoelectric materials with high stretchability and seebeck coefficient is still challenging. Here we report a tellurium-nanowire-doped (Te-NW-doped) PEDOT:PSS/polyvinyl alcohol (TPP) hydrogel with excellent mechanical and thermoelectric characteristics. The effect of Te-NWs doping on the thermoelectric characteristics has been systematically investigated and the optimized TPP hydrogel exhibits a large seebeck coefficient value of 787 μV K −1 , a low thermal conductivity of 0.468 W m −1 K −1 , and a high tensile strain value of ⁓ 400%. Furthermore, a wearable thermoelectric module with a staggered Z-shaped structure is developed to achieve a voltage output of 138 mV when it is applied on the human arm. After being integrated with a power management unit, the TPP TEG module enables the operation of electronic devices like a commercial calculator and a white LED, which exhibits great potential for applications in human heat energy harvesting and wearable electronics .
研究领域:
材料科学
·
能源技术
·
柔性电子
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2018
·Vol. 136
·期 6
·47054
·
IF 1.901
Changzeng Yan,Tianhang Yu,Chao Ji,Xiaoliang Zeng,Jibao Lu,Rong Sun,Ching-Ping Wong
Heat removal via thermal management materials is attracting more and more attention in the electronic industry. Conventional particle/polymer thermal conductive composites require a high filler loading ratio (>30 vol %), which cause severe thermal interfacial resistance and mechanical issue. In this work, we fabricate tellurium nanowires (NWs)/epoxy nanocomposites via a facile bar coating method. According to Agari model and Maxwell–Eucken model, the as-synthesized ultra-long NWs with high aspect ratio (>100) construct the 3D interconnected thermal conductive network better in resin matrix to facilitate the heat transfer process. The results show that at a low loading ratio of 2.4 vol %, this nanocomposite exhibits the out-of-plane and in-plane thermal conductivity of 0.378 and 1.63 W m −1 K −1 , respectively, which is 189 and 715% higher than that of pure epoxy resin. Importantly, good stability, and flexibility of nanocomposites are well maintained. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47054.
研究领域:
材料科学
·
热管理材料
✓ 已验证
产品关联
DOI
高影响因子
THIN SOLID FILMS
·
2018
·
IF 1.939
Wenfang Wang,Changcun Li,Xia Li,Yanhua Jia,Fengxing Jiang,Congcong Liu,Rongri Tan,Jingkun Xu
Low-dimensional tellurium-based nanowires (NWs) have gained much attention as ideal thermoelectric materials. The preparation of high quality NWs remains a challenge in the field of nanotechnology. Owing to the superior performance, tellurium (Te) NWs are attractive materials for many applications. In this work, the Te NWs were synthesized by a hydrothermal route. We acquired the ultra-fine Te NWs through optimization, and the diameter is 10–35 nm. The optimized Te nanofilm was freestanding and the Te/polyvinylidene fluoride film can be rolled up by a pencil which showed the flexibility of the membrane. The as-prepared Te NWs films have been investigated by scanning electron microscopy, transmission electron microscopy , X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy . Although the ultra-fine Te NWs film shows the acceptable electrical conductivity , its Seebeck coefficient is as high as 551 μV K −1 and the thermal conductivity is as low as 0.16 W m −1 K −1 . To achieve a higher thermoelectric performance, the effort will be devoted into the improvement of electrical conductivity in next work.
研究领域:
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Materials Express
·
2022
·Vol. 12
·期 3
·511-517
·
IF 1.111
Zhu Hongliang,Chen JiaHao,Fan Li,Liu Hao,Wei Qichen,Hu Mengdi,Kong Lijun,Zhang Jiawei,Yan Shancheng
As typical P-type narrow-band semiconductors, tellurium nanostructures have received extensive attention in fabrication of modern microdevices. However, their synthesis generally requires the use of toxic reducing agents and difficult operating conditions. In this study, a green thermal
solvothermal method was used to synthesize tellurium nanowires, whereby Polyvinylpyrrolidone was used as a soft template and ethylene glycol was used not only as a mild solvent but also as a reducing agent. We studied the optoelectronic properties of tellurium nanowire devices, the mobility
of which was 200 cm2v−1s−1 at 7 K. We also measured the transient response under 650 nm laser irradiation, and spectral response of tellurium nanowire photodetectors degree was 1.02 WA−1. Photoelectric effect generation mechanism
for tellurium nanowires was at the same time further studied. We believe that tellurium nanowires have great development prospects in the field of optoelectronic devices.
研究领域:
材料科学
·
光学工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Nano Research
·
2021
·Vol. 15
·期 2
·1087-1093
·
IF 8.897
Li Leigang,Wang Pengtang,Cheng Zifang,Shao Qi,Huang Xiaoqing
The sluggish reaction kinetics of oxygen evolution reaction (OER) has largely lowered the efficiency of electrochemical water splitting. Ir represents one of the state-of-the-art electrocatalysts for promoting OER especially in acidic electrolytes. However, it remains a formidable challenge to synthesize high-quality one-dimensional (1D) Ir-based nanostructures for improved electrocatalytic performance. Herein, a template-assisted synthesis method is reported wherein 1D porous Ir-Te nanowires (Ir-Te NWs) are synthesized with Te NWs serving as the template. The Ir-Te NWs exhibit highly enhanced OER performance compared to commercial IrO 2 and Ir/C. In detail, the overpotentials to reach 10 mA·cm −2 are 248 and 284 mV in 1 M KOH and 0.5 M H 2 SO 4 , respectively, much lower than those of commercial catalysts. The Ir-Te NWs also show smaller Tafel slopes than commercial IrO 2 and Ir/C, signifying faster reaction kinetics. Besides, much more durable OER activity can be maintained for Ir-Te NWs with negligible decay during 25 and 20 h stability tests in 1 M KOH and 0.5 M H 2 SO 4 , respectively. Further analysis indicates that the significantly improved OER performance of Ir-Te NWs could be ascribed to the larger electrochemical surface area and smaller electrical resistance. More significantly, the templated synthesis of Ir-Te NWs can be facilely extended to the fabrication of other metal-Te NWs including Ru-Te, Rh-Te and Pt-Te NWs. The design and synthesis of 1D metal-based NWs in this work provide important inspiration for the synthesis of diversified 1D metallic nanostructures with distinctly enhanced catalytic performance and beyond.
研究领域:
材料科学
·
电化学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）