
Hafnium(IV) oxide - Wikipedia
Hafnium(IV) oxide is the inorganic compound with the formula HfO 2.Also known as hafnium dioxide or hafnia, this colourless solid is one of the most common and stable compounds of hafnium.It is an electrical insulator with a band gap of 5.3~5.7 eV. [2] Hafnium dioxide is an intermediate in some processes that give hafnium metal.
二氧化铪 - 维基百科,自由的百科全书
白色或灰色粉末。不溶于水、盐酸和硝酸和其他一般无机酸,在氢氟酸中缓慢溶解生成氟铪酸盐。 与热浓硫酸或硫酸氢盐作用生成硫酸铪。 与碳在氯气存在下混合加热得到四氯化铪。 与氟硅酸钾作用生成氟铪酸钾。 与碳在1500℃以上反应得碳化铪(HfC)。 是一种具有宽带隙(~6eV)和高 …
二氧化铪 - 百度百科
二氧化铪是一种无机物,化学式为HfO2,是铪元素的一种氧化物,常温常压下为白色固体,难溶于水,不溶于盐酸和硝酸,可溶于浓硫酸和氢氟酸。 网页 新闻 贴吧 知道 网盘 图片 视频 地图 文库 资讯 采购 百科
氧化铪 | 12055-23-1 - ChemicalBook
二氧化铪(HfO2)是一种具有较高介电常数的氧化物。 作为一种介电材料,因其较高的介电常数值(~ 20),较大的禁带宽度(~ 5.5 eV),以及在硅基底上良好的稳定性,HfO2被认为是替代场效应晶体管中传统 SiO2 介电层的理想材料。
The fundamentals and applications of ferroelectric HfO2 | Nature ...
Mar 30, 2022 · In this Review, we discuss in depth the properties and origin of ferroelectricity in HfO2-based materials, carefully evaluating numerous reports in the field, which are sometimes contradictory ...
HfO2(氧化铪)需要用什么气体刻蚀? - 知乎专栏
HfO2(氧化铪),也可称为二氧化铪,因其高介电常数和高稳定性,在半导体行业中作为高K电介质材料得到了广泛的应用。 在微电子器件制造过程中,HfO2的刻蚀是一个关键步骤,它决定了器件的性能和可靠性。
mp-685097: HfO2 (orthorhombic, Pca2_1, 29) - Materials Project
HfO2 is Baddeleyite-like structured and crystallizes in the orthorhombic Pca2_1 space group. The structure is three-dimensional. Hf4+ is bonded to seven O2- atoms to form a mixture of distorted edge and corner-sharing HfO7 pentagonal bipyramids. There are a spread of Hf–O bond distances ranging from 2.04–2.25 Å.
Hafnium Oxide (HfO2) – A Multifunctional Oxide: A Review on the ...
Abstract Hafnium oxide (HfO2) is one of the mature high-k dielectrics that has been standing strong in the memory arena over the last two decades. Its dielectric properties have been researched rig...
氧化铪(Hafnium oxide),化学式为HfO2,是一种重要的无机化合物
Oct 22, 2024 · #圣和化工厂家# 氧化铪(Hafnium oxide),化学式为HfO2,是一种重要的无机化合物。以下是对氧化铪的详细介绍:
Hafnium oxide (HfO2) | HfO2 | CID 292779 - PubChem
Hafnium oxide (HfO2) | HfO2 | CID 292779 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
铁电Nature/Science三连击! - 知乎专栏
HfO2,即二氧化铪(hafnium oxide或hafnia),是一种具有宽带隙、高介电常数的简单氧化物材料,长期以来被用于微电子、集成电路、介电器件的栅极绝缘层,并且极有可能替代目前广泛使用的SiO2基栅极材料。HfO2不仅可以做到尺寸足够小,足够薄,还显示出非常规的 ...
专题: 功能氧化物薄膜新奇物理性质 HfO2基铁电薄膜的结构、性能调控及典型器件应用* 袁国亮1)† 王琛皓1) 唐文彬1) 张睿1) 陆旭兵2)‡ 1) (南京理工大学材料科学与工程学院, 南京 210094) 2) (华南师范大学华南先进光电子研究院, 广州 510006)
Hafnium Oxide And Its Structure & Applications
Hafnium oxide is the inorganic compound of the formula HfO2. Also known as hafnia, this colorless solid is one of the most common and stable compounds of hafnium. It is an electrical isolator with a bandgap of 5.3 ~ 5.7 eV. Hafnium dioxide is an intermediate in some processes that give hafnium metal.
Structures, Phase Equilibria, and Properties of HfO2
Jan 1, 2019 · Interaction of HfO2 with Y 2 O 3, Ho 2 O 3, Er 2 O 3, Tm 2 O 3, Yb 2 O 3, and Lu 2 O 3
HfO2是什么?HfO2(氧化铪),也可被称为二氧化铪。带隙 …
Apr 6, 2024 · HfO2是什么? HfO2(氧化铪),也可被称为二氧化铪。带隙为5.3~5.7 eV,高介电常数,介电常数比SiO 2高4-6倍,是很好的绝缘体。氧化铪具有十分稳定的化学性质,它只与强酸和强碱发生反应。 HfO2用在哪些芯片制程中?
正交晶系HfO2中铁电开关过程的识别及其掺杂依赖性的第一性原 …
Dec 20, 2024 · HfO2(和ZrO2)基高k材料中发现的铁电性(FE)激发了人们对铁电存储器件的新兴趣。 与商用铁电随机存取存储器(FE- RAM)中使用的典型(层状)钙钛矿铁电体(如PbZr xTi(1-x)O3和SrBi2Ta2O9)相比,铁电性高k材料薄…
mp-352: HfO2 (monoclinic, P2_1/c, 14) - Materials Project
HfO2 is Baddeleyite structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Hf4+ is bonded to seven O2- atoms to form a mixture of distorted corner and edge-sharing HfO7 pentagonal bipyramids.
微电子所刘明院士团队发现铪基铁电材料新结构,或为新型存储技 …
Sep 27, 2023 · HfO2 材料,是集成电路互补金属氧化物半导体(CMOS,Complementary Metal Oxide Semiconductor)工艺中常用的一种 high-k 材料,制备工艺较为成熟。
HfO2基铁电薄膜的结构、性能调控及典型器件应用
基于HfO2的阻变存储器中Ag导电细丝方向和浓度的第一性原理研究. 物理学报, 2016, 65(7): 073101. doi: 10.7498/aps.65.073101 [14] 蒋然, 杜翔浩, 韩祖银, 孙维登. Ti/HfO2/Pt阻变存储单元中的氧空位聚簇分布. 物理学报, 2015, 64(20): 207302. doi: 10.7498/aps.64.207302 [15]
High-Quality HfO2 High-K Gate Dielectrics Deposited on Highly …
Feb 27, 2025 · In this study, an enhanced precursor atomic layer seeding (EPALS) assisted atomic layer deposition (ALD) is proposed to prepare high-quality hafnium oxide (HfO2) high-K gate dielectrics on highly oriented pyrolytic graphite (HOPG) surfaces. The EPALS technique addresses the challenge of depositing high-quality oxides directly on two-dimensional (2D) …