About Selenides

Selenide Ion, Molecular StructureSelenides are compounds containing the selenide anion, Se2-. As selenium is a member of group 16 on the periodic table, it is considered a chalcogen, and selenide compounds belong to a class of compounds known as chalcogenides.

Alkali metal and alkaline earth chalcogenides are typically colorless, water-soluble compounds used primarily as reagents in chemical synthesis. In contrast, transition metal chalcogenides exhibit a more covalent bond character and useful electronic and optical properties, and many are brightly colored. These are the chalcogenides most often used directly as functional materials; they are found as pigments, catalysts, optical materials, phase change materials, solid electrolytes, or semiconductors. The properties of main-group chalcogenides are less generalizable, but like transition metal halides, they exhibit covalent bonding and many have direct applications. Many chalcogenides compounds occur naturally as minerals such as pyrite (iron sulfide) and calaverite (gold telluride).

Most commercially important selenides are inorganic semiconducting solids, and are found in a variety of optical and/or electronic applications. Copper indium gallium selenide (CIGS), which is a solid solution of copper indium selenide and copper gallium selenide, is an important thin-film solar cell material. Cadmium selenide is a well-researched material used primarily in the form of quantum dots for applications in solar cells, LEDs, and biofluorescent tagging. Lead selenide is a thermoelectric semiconductor that is widely used for infrared detectors in thermal imaging applications.

Additionally, there are a number of organic selenides that are used primarily in depositing thin films of selenium compounds through processes such as metal organic vapor epitaxy.

Recent Research & Development for Selenides

The deposition of cadmium selenide and cadmium phosphide thin films from cadmium thioselenoimidodiphosphinate by AACVD and the formation of an aromatic species., Oyetunde, Temidayo, Afzaal Mohammad, Vincent Mark A., and O'Brien Paul , Dalton Trans, 2019 Jan 22, Volume 48, Issue 4, p.1436-1442, (2019)

Size-Dependent Lattice Dynamics of Atomically Precise Cadmium Selenide Quantum Dots., Shi, Chenyang, Beecher Alexander N., Li Yan, Owen Jonathan S., Leu Bogdan M., Said Ayman H., Hu Michael Y., and Billinge Simon J. L. , Phys Rev Lett, 2019 Jan 18, Volume 122, Issue 2, p.026101, (2019)

Sensitivity Enhancement of a Surface Plasmon Resonance with Tin Selenide (SnSe) Allotropes., Dai, Xiaoyu, Liang Yanzhao, Zhao Yuting, Gan Shuaiwen, Jia Yue, and Xiang Yuanjiang , Sensors (Basel), 2019 Jan 05, Volume 19, Issue 1, (2019)

Tuning carbon nanotube-grafted core-shell-structured cobalt selenide@carbon hybrids for efficient oxygen evolution reaction., Yuan, Menglei, Wang Meng, Lu Peilong, Sun Yu, Dipazir Sobia, Zhang Jingxian, Li Shuwei, and Zhang Guangjin , J Colloid Interface Sci, 2019 Jan 01, Volume 533, p.503-512, (2019)

Ultrafast Zero-Bias Surface Photocurrent in Germanium Selenide: Promise for Terahertz Devices and Photovoltaics., Kushnir, Kateryna, Qin Ying, Shen Yuxia, Li Guangjiang, Fregoso Benjamin M., Tongay Sefaattin, and Titova Lyubov V. , ACS Appl Mater Interfaces, 2019 Feb 06, Volume 11, Issue 5, p.5492-5498, (2019)

Gallium selenide clusters generated via laser desorption ionisation quadrupole ion trap time-of-flight mass spectrometry., Pečinka, Lukáš, Prokeš Lubomír, and Havel Josef , Rapid Commun Mass Spectrom, 2019 Feb 02, (2019)

Large SHG Effect and High LIDT Observed Coexisting in Gallium Selenide: a Simple but Perfect Case., Guo, Sheng-Ping, Cheng Xiyue, Sun Zong-Dong, Chi Yang, Liu Bin-Wen, Jiang Xiao-Ming, Li Shu-Fang, Xue Huai-Guo, Deng Shuiquan, Duppel Viola, et al. , Angew Chem Int Ed Engl, 2019 Apr 19, (2019)

Syntheses of Thioethers and Selenide Ethers from Anilines under Mild Conditions., Shieh, Yi-Chen, Du Kai, R Basha Sidick, Xue Yung-Jing, Shih Bo-Hao, Li Liang, and Lee Chin-Fa , J Org Chem, 2019 Apr 17, (2019)

Nanoparticle and Laminar Structured Lead Selenide Photoconductive Thin Film., Kim, Sung-Gu, Kim Elizabeth, and Park Gye-Choon , J Nanosci Nanotechnol, 2019 Apr 01, Volume 19, Issue 4, p.2334-2338, (2019)

Influence of Post-Heat Treatment of ZnO:Al Transparent Electrode for Copper Indium Gallium Selenide Thin Film Solar Cell., Eom, Taewoo, Park Jeong Eun, Park Sang Yong, Park Jeong Hoon, Bweupe Jackson, and Lim Donggun , J Nanosci Nanotechnol, 2018 Sep 01, Volume 18, Issue 9, p.6532-6535, (2018)

Cadmium selenide quantum dot-zinc oxide composite: Synthesis, characterization, dye removal ability with UV irradiation, and antibacterial activity as a safe and high-performance photocatalyst., Mahmoodi, Niyaz Mohammad, Karimi Behzad, Mazarji Mahmoud, and Moghtaderi Hassan , J Photochem Photobiol B, 2018 Sep 01, Volume 188, p.19-27, (2018)

Structural and compositional control in copper selenide nanocrystals for light-induced self-repairable electrodes., Singh, Subhash C., Li Huiyan, Yao Chaonan, Zhan Z, Yu Weili, Yu Zhi, and Guo Chunlei , Nano Energy, 2018 Sep, Volume 51, p.774-785, (2018)

Solution-Based Processing of Optoelectronically Active Indium Selenide., Kang, Joohoon, Wells Spencer A., Sangwan Vinod K., Lam David, Liu Xiaolong, Luxa Jan, Sofer Zdeněk, and Hersam Mark C. , Adv Mater, 2018 Sep, Volume 30, Issue 38, p.e1802990, (2018)

Identifying the Non-Identical Outermost Selenium Atoms and Invariable Band Gaps across the Grain Boundary of Anisotropic Rhenium Diselenide., Hong, Min, Zhou Xiebo, Gao Nan, Jiang Shaolong, Xie Chunyu, Zhao Liyun, Gao Yan, Zhang Zhepeng, Yang Pengfei, Shi Yuping, et al. , ACS Nano, 2018 Oct 23, Volume 12, Issue 10, p.10095-10103, (2018)