About Silicides

Tantalum Silicide

Silicides are binary compounds of silicon with other more electropositive elements. Chemical bonds in silicides may exhibit primarily covalent or primarily ionic characteristics, depending on the electronegativity of participating elements.

Silicides of many transition metals and all non-transition metals except beryllium have been described; mercury, thallium, bismuth, and lead are nonmiscible with liquid silicon. Transition metal silicides are usually inert to all aqueous solutions with the exception of hydrofluoric acid, but they can react with more aggressive agents such as potassium hydroxide or halogen gases when subjected to extremely high temperatures.

Silicides play important roles in the field of advanced technology. Thin films of metal silicides are integral to the integrated circuits of semiconductor and microelectronics devices, the most common including CoSi2, NiSi2, WSi2, MoSi2, TaSi2, TiSi2., and PtSi, a superconductor and Schottky barrier used in infrared detection and Schottky contacts. These materials are typically synthesized via sputtering deposition of the metal onto a high purity silicon wafer. Alkali metal silicides like sodium silicide generate pure hydrogen when reacted with water or water-based solutions, making them a potentially viableas a clean, sustainable source of hydrogen for fuel cells. Niobium silicide was used to create the first functional printed diode that worked up to the GHz range, and a novel lithium borosilicide (LiBSi2) has been investigated as a promising anode material for lithium-ion batteries that could increase cell capacity.

American Elements manufactures multiple forms of silicide compounds including solutions, nanopowders, submicron, and -325 mesh powders, and high surface area materials with particle distribution and particle size controlled and certified. We also produce larger -40 mesh, -100 mesh, -200 mesh range sizes and <0.5 mm, 2 mm, 5 mm and other sizes of shot, granules, lump, flake and pieces. Purities include 99%, 99.9%, 99.99%, 99.999% and 99.9999% (2N, 3N, 4N, 5N and 6N).

American Elements maintains industrial scale production for all its silicides products and will execute Non-Disclosure or Confidentiality Agreements to protect customer know-how.

Recent Research & Development for Silicides

Study of Lithium Silicide Nanoparticles as Anode Materials for Advanced Lithium Ion Batteries., Li, Xuemin, Kersey-Bronec Faith E., Ke John, Cloud Jacqueline E., Wang Yonglong, Ngo Chilan, Pylypenko Svitlana, and Yang Yongan , ACS Appl Mater Interfaces, 2017 May 17, Volume 9, Issue 19, p.16071-16080, (2017)

Enhanced light absorption in waveguide Schottky photodetector integrated with ultrathin metal/silicide stripe., Guo, Jingshu, Wu Zhiwei, and Zhao Yanli , Opt Express, 2017 May 01, Volume 25, Issue 9, p.10057-10069, (2017)

Magnesium silicide nanoparticles as a deoxygenation agent for cancer starvation therapy., Zhang, Chen, Ni Dalong, Liu Yanyan, Yao Heliang, Bu Wenbo, and Shi Jianlin , Nat Nanotechnol, 2017 May, Volume 12, Issue 4, p.378-386, (2017)

Unidirectional endotaxial cobalt di-silicide nanowires on Si(110) substrates., Mahato, Jagadish Ch, Das Debolina, Banu Nasrin, Satpati Biswarup, and Dev B N. , Nanotechnology, 2017 Jul 12, (2017)

Monolithic porous magnesium silicide., Hayati-Roodbari, N, Berger R J. F., Bernardi J, Kinge S, Hüsing N, and Elsaesser M S. , Dalton Trans, 2017 Jul 11, Volume 46, Issue 27, p.8855-8860, (2017)

Low-Temperature Wet Conformal Nickel Silicide Deposition for Transistor Technology through an Organometallic Approach., Lin, Tsung-Han, Margossian Tigran, De Marchi Michele, Thammasack Maxime, Zemlyanov Dmitry, Kumar Sudhir, Jagielski Jakub, Zheng Li-Qing, Shih Chih-Jen, Zenobi Renato, et al. , ACS Appl Mater Interfaces, 2017 Feb 08, Volume 9, Issue 5, p.4948-4955, (2017)

Absorption Amelioration of Amorphous Si Film by Introducing Metal Silicide Nanoparticles., Sun, Hui, Wu Hsuan-Chung, Chen Sheng-Chi, Lee Che-Wei Ma, and Wang Xin , Nanoscale Res Lett, 2017 Dec, Volume 12, Issue 1, p.224, (2017)

Fabrication and Gas-Sensing Properties of Ni-Silicide/Si Nanowires., Hsu, Hsun-Feng, Chen Chun-An, Liu Shang-Wu, and Tang Chun-Kai , Nanoscale Res Lett, 2017 Dec, Volume 12, Issue 1, p.182, (2017)

Versatile Titanium Silicide Monolayers with Prominent Ferromagnetic, Catalytic, and Superconducting Properties: Theoretical Prediction., Wu, Qisheng, Zhang Jun-Jie, Hao Peipei, Ji Zhongyang, Dong Shuai, Ling Chongyi, Chen Qian, and Wang Jinlan , J Phys Chem Lett, 2016 Oct 06, Volume 7, Issue 19, p.3723-3729, (2016)

Self-organised silicide nanodot patterning by medium-energy ion beam sputtering of Si(100): local correlation between the morphology and metal content., Redondo-Cubero, A, Galiana B, Lorenz K, Palomares F J., Bahena D, Ballesteros C, Hernandez-Calderón I, and Vázquez L , Nanotechnology, 2016 Nov 04, Volume 27, Issue 44, p.444001, (2016)

Europium Silicide - a Prospective Material for Contacts with Silicon., Averyanov, Dmitry V., Tokmachev Andrey M., Karateeva Christina G., Karateev Igor A., Lobanovich Eduard F., Prutskov Grigory V., Parfenov Oleg E., Taldenkov Alexander N., Vasiliev Alexander L., and Storchak Vyacheslav G. , Sci Rep, 2016 May 23, Volume 6, p.25980, (2016)

Silicide Coating Fabricated by HAPC/SAPS Combination to Protect Niobium Alloy from Oxidation., Sun, Jia, Fu Qian-Gang, Guo Li-Ping, and Wang Lu , ACS Appl Mater Interfaces, 2016 Jun 22, Volume 8, Issue 24, p.15838-47, (2016)

Valence Band Control of Metal Silicide Films via Stoichiometry., Streller, Frank, Qi Yubo, Yang Jing, Mangolini Filippo, Rappe Andrew M., and Carpick Robert W. , J Phys Chem Lett, 2016 Jul 07, Volume 7, Issue 13, p.2573-8, (2016)

Si-rich W silicide films composed of W-atom-encapsulated Si clusters deposited using gas-phase reactions of WF6 with SiH4., Okada, Naoya, Uchida Noriyuki, and Kanayama Toshihiko , J Chem Phys, 2016 Feb 28, Volume 144, Issue 8, p.084703, (2016)

Nickel/Platinum Dual Silicide Axial Nanowire Heterostructures with Excellent Photosensor Applications., Wu, Yen-Ting, Huang Chun-Wei, Chiu Chung-Hua, Chang Chia-Fu, Chen Jui-Yuan, Lin Ting-Yi, Huang Yu-Ting, Lu Kuo-Chang, Yeh Ping-Hung, and Wu Wen-Wei , Nano Lett, 2016 Feb 10, Volume 16, Issue 2, p.1086-91, (2016)