搜索结果: 1-14 共查到“国际动态 无机非金属材料”相关记录14条 . 查询时间(5.048 秒)
中俄科研人员发现纳米碳新结构
俄罗斯 中国 纳米碳 新结构
2023/11/2
我国和俄罗斯的科研人员成功将碳纳米颗粒与三维四面体键结合起来，获取到不寻常的量子点，呈现出平坦的二维结构。通过X射线光电子能谱、拉曼光谱、电子显微镜以及光学和发光光谱等不同方式对新量子点进行测试表明，量子点能够加快海量数据的处理速度，并实现对测量仪器和技术设备的快速控制。这一发现将有助于创造一种新型纳米材料，对于空间技术、量子技术的研究，传感器、触摸设备的开发，电子、光子、光学、光电组合元件和设备...
With new experimental method, researchers probe spin structure in 2D materials for first time（图）
2D材料 自旋结构 “魔角”石墨烯
2023/5/11
By observing spin structure in “magic-angle” graphene, a team of scientists led by Brown University researchers have found a workaround for a long-standing roadblock in the field of two-dimensional el...
Using a targeted computational approach, researchers in the Department of Materials Science and Engineering at Cornell have found more than 20 new self-assembled crystal structures, none of which had ...
国外研制出新型氧离子电池
氧离子 电池 陶瓷基
2023/4/18
奥地利维也纳技术大学与西班牙加泰罗尼亚能源研究所合作开发出一种新型陶瓷基氧离子电池。研究成果发表于《先进能源材料》（Advanced Energy Materials），相关技术已申请专利。
Despite the many advantages of concrete as a modern construction material, including its high strength, low cost, and ease of manufacture, its production currently accounts for approximately 8 percent...
By bringing together the right materials duking it out, a Cornell-led collaboration has for the first time used voltage to turn on and off a material’s crystal symmetry, thereby controlling its electr...
The mysterious changes in phases of matter – from solid to liquid and back again – have fascinated Eun-Ah Kim since she was in lower elementary school in South Korea. Without cold drinking water readi...
Shape-memory metals, which can revert from one shape to a different one simply by being warmed or otherwise triggered, have been useful in a variety of applications, as actuators that can control the ...
Perovskites hold promise for creating solar panels that could be easily deposited onto most surfaces, including flexible and textured ones. These materials would also be lightweight, cheap to produce,...
碳纳米管手性改造与分子结晶体管研究取得重要进展（图）
半导体 碳纳米管 电学性质
2022/2/17
半导体性碳纳米管具有大长径比、无悬键表面、高载流子迁移率、室温弹道输运等独特结构特征和优异电学性质，因而被认为是十纳米以下高性能、低功耗晶体管沟道材料的有力候选。碳纳米管的导电属性取决于其螺旋（手性）结构，通常制备出的碳纳米管为金属性和半导体性碳纳米管的混合物。虽然近年来碳纳米管的结构控制生长与手性分离研究取得了较大进展，但单根碳纳米管的手性及导电属性调控仍是本领域研究的关键和难点。
Scientists discover a mysterious transition in an electronic crystal（图）
电子晶体 层状化合物 热跨度 电气开关 非易失性存储器
2022/2/7
When temperature changes, many materials undergo a phase transition, such as liquid water to ice, or a metal to a superconductor. Sometimes, a so-called hysteresis loop accompanies such a phase change...
A staple on any engineer’s workbench, duct tape is a quick and dependable fix for cracks and tears in many structural materials. MIT engineers have now developed a kind of surgical duct tape — a stron...
December 7, 2006，Leaded crystal and common glass may look similar, but the crystal is made of a rigid scaffolding of atoms, while the glass is a disordered, atomic slurry.Researchers at the University...