| 查看: 278 | 回复: 1 | |||
Yemandragon金虫 (小有名气)
|
[交流]
【专题】Japanese team discovers 'super disc' material 已有1人参与
|
|
Blu-ray discs are seen next to HD DVDs on a shelf at a Best Buy store in San Francisco. A Japanese research team has found a material that could be used to make a low-price super disc with data storage capacity thousands of times greater than a DVD, the lead scientist has said. A Japanese research team has found a material that could be used to make a low-price super disc with data storage capacity thousands of times greater than a DVD, the lead scientist said Monday. * Biochemistry * Polymers * Analytical Chemistry * Materials Science * Other Japanese team discovers 'super disc' material May 24, 2010 A single-layer Blu-ray disc can hold five times as much data as a conventional DVD Enlarge Blu-ray discs are seen next to HD DVDs on a shelf at a Best Buy store in San Francisco. A Japanese research team has found a material that could be used to make a low-price super disc with data storage capacity thousands of times greater than a DVD, the lead scientist has said. A Japanese research team has found a material that could be used to make a low-price super disc with data storage capacity thousands of times greater than a DVD, the lead scientist said Monday. Ads by Google Rupture Discs - Manufacturer of Rupture Discs and Safety Panels - www.donadonsdd.com The material transforms from a black-colour metal state that conducts electricity into a brown semiconductor when hit by light, according to Shin-ichi Ohkoshi, chemistry professor at the University of Tokyo. The material, a new crystal form of titanium oxide, can switch back and forth between the metal and semiconductor states at room temperature when exposed to light, creating an effective on-off function for data storage. It is "promising as a material for a next-generation optical storage device," Ohkoshi told AFP by telephone. A material that changes colour with light can be used in storage devices as colours reflect light differently to contain different information. His team has succeeded in creating the material in particles measuring five-to-20 nanometres (a five-billionth to 20-billionth of a metre) in diameter. If the smallest particle is used, the new disc could hold more than 1,000 times as much information as a Blu-ray disc, provided that matching data-writing and reading equipment are developed. A single-layer Blu-ray disc can hold five times as much data as a conventional DVD. Titanium oxide's market price is about one-hundredth of the rare element -- germanium-antimony-tellurium -- that is currently used in rewritable Blu-ray discs and DVDs, Ohkoshi said. "You don't have to worry about procuring rare metals. Titanium oxide is cheap and safe, already being used in many products ranging from face powder to white paint," the professor said. Ohkoshi said it was not known when a disc with the material would be manufactured and put to practical use, adding that he would start talks with private-sector companies for commercialisation. The study was published in the advance online edition of the British magazine Nature Chemistry. |
回复此楼» 猜你喜欢
温州大学2026年招生（化学、材料）
已经有10人回复
-
招生负责_院士团队_学生高自由度成长_擅长学生培养
已经有5人回复
-
金属材料论文润色/翻译怎么收费?
已经有106人回复
-
温州大学招收2026年入学博士研究生（化学、材料、环境）
已经有10人回复
-
非晶合金
已经有2人回复
-
院士团队-每届学生都优秀-高自由度-团队氛围好
已经有0人回复
-
求调剂
已经有3人回复
-
化工学院（学院正式调剂群+联系方式）
已经有0人回复
-
化工学院（学院官方群）-院士团队招生-学生自由度高-培养模式成熟高效
已经有0人回复
-
黑龙江大学分析化学招调剂
已经有0人回复
-
武汉高校国家级人才团队招收材料，化学，纺织等专业硕士调剂生
已经有8人回复
 |
2楼2010-06-01 21:01:37
