搜索结果: 31-45 共查到“国际动态 无机非金属材料”相关记录78条 . 查询时间(5.226 秒)
纸基陶瓷可制成随机激光器
陶瓷 随机激光器 发射光线 有机金属
2016/11/22
据每日科学网近日报道，来自意大利罗马大学和德国慕尼黑技术大学的国际团队，创建了第一个基于纤维素纸的可控随机激光器，其成功利用了陶瓷二氧化钛的光散射效应。发表在最新一期《高级光学材料》杂志上的论文，详细阐述了科研人员“将生物结构应用于随机激光器模板的技术”。
New LEDs may offer better way to clean water in remote areas
New LEDs clean water remote areas
2016/11/15
For the first time, researchers have created light-emitting diodes (LEDs) on lightweight flexible metal foil.Engineers at The Ohio State University are developing the foil based LEDs for portable ultr...
Controlling the properties of matter in two-dimensional crystals
Controlling the properties two-dimensional crystals
2016/11/2
By creating atomic chains in a two-dimensional crystal, researchers at Penn State believe they have found a way to control the direction of materials properties in two- and three-dimensional crystals ...
美国开发出世界上最小晶体管
美国 世界 最小晶体管
2016/10/25
2016年10月7日，美国劳伦斯伯克利国家实验室研究团队开发出栅极沟道长度仅为1nm的晶体管，该晶体管利用二硫化钼与碳纳米管材料实现。目前，商用晶体管最小长度约为10nm，这一成果刊登于最新一期的《科学》杂志上。
New Approach to Determining How Atoms Are Arranged in Materials
Atoms Are Arranged Materials
2016/8/23
A Bayesian inference method for refining crystallographic structures is presented. The distribution of model parameters is stochastically sampled using Markov chain Monte Carlo. Posterior probability ...
Berkeley Lab Scientists Grow Atomically Thin Transistors and Circuits
Berkeley Lab Scientists Atomically Thin Transistors Circuits
2016/7/11
In an advance that helps pave the way for next-generation electronics and computing technologies—and possibly paper-thin gadgets —scientists with the U.S. Department of Energy’s Lawrence Berkeley Nati...
Researchers Integrate Diamond/Boron Nitride Crystalline Layers for Use in High-Power Devices
Researchers Integrate Diamond/Boron Nitride Crystalline Layers High-Power Devices
2016/5/10
We have created a new state of BN (named Q-BN) through rapid melting and super undercooling and quenching by using nanosecond laser pulses. Phase pure c-BN is formed either by direct quenching of supe...
新方法“刻”出最快柔性硅晶体管
刻 最快柔性 硅晶体管
2016/4/22
美国威斯康星大学麦迪逊分校的科研团队，在2016年4月20日出版的《科学报告》杂志上撰文称，他们使用一种独特方法，研制出了处理速度最快的柔性硅基晶体管，能无线传输数据和能量，有望用在包括可穿戴电子设备和传感器等在内的诸多领域。目前这一柔性硅晶体管的截止频率为创纪录的38吉赫兹（GHz），而模拟表明，其最高截止频率甚至能高达110吉赫兹（GHz）。在计算机领域，截止频率越高，晶体管的处理速度越快。
美国哈佛大学研究人员开发出可调透明度的窗玻璃
美国哈佛大学 研究人员 可调透明度 窗玻璃
2016/3/23
美国哈佛大学研究人员日前开发出一种新工艺，只需轻调电压，就能迅速改变窗玻璃的透明度。此前也有研究人员开发可调透明度的窗玻璃，但都是基于电化学反应来实现调节功能，工艺成本较高。而哈佛研究小组的新技术是通过改变材料的几何结构来调节窗玻璃透明度的。哈佛大学工程与应用科学学院研究人员在最新一期美国《光学快报》杂志上报告说，他们开发的新型可调窗玻璃中间是一层玻璃或者塑料材料，两侧覆盖了透明、柔软的弹性体，弹...
The secret to a long-hidden magic trick behind the self-assembly of nanocrystal structures is starting to be revealed.The transformation of simple colloidal particles — bits of matter suspended in sol...
Just as the single-crystal silicon wafer forever changed the nature of communication 60 years ago, a group of Cornell researchers is hoping its work with quantum dot solids – crystals made out of crys...
New Technique Developed by Team Including CMU President Suresh Removes Defects While Keeping Materials Strong
CMU President Removes Defects Keeping Materials Strong
2015/10/19
When designing a new material, whether for an airplane, car, bridge, mobile device, or biological implant, engineers strive to make the material strong and defect-free. However, methods conventionally...
Caution:Shrinks When Warm
Shrinks When Warm
2015/10/6
Most materials swell when they warm, and shrink when they cool. But UConn physicist Jason Hancock has been investigating a substance that responds in reverse: it shrinks when it warms.Although thermal...
Perfect colors, captured with one ultra-thin lens（图）
Perfect colors captured with one ultra-thin lens
2015/2/19
Most lenses are, by definition, curved. After all, they are named for their resemblance to lentils, and a glass lens made flat is just a window with no special powers.But a new type of lens created at...
Scientists do glass a solid--with new theory on how it transitions from a liquid（图）
theory liquid
2014/11/24
How does glass transition from a liquid to its familiar solid state? How does this common material transport heat and sound? And what microscopic changes occur when a glass gains rigidity as it cools?