One-Pot Synthesis of Liquid Hg/Solid β-HgS Metal−Semiconductor Heterostructures with Unique Electrical Properties

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• 作者：Lei Wu ; Baogang Quan ; Yaling Liu ; Rui Song ; Zhiyong Tang
• 刊名：ACS Nano
• 出版年：2011
• 出版时间：March 22, 2011
• 年：2011
• 卷：5
• 期：3
• 页码：2224-2230
• 全文大小：919K
• 年卷期：0
• ISSN：1936-086X

文摘

Liquid metal−solid semiconductor heterostructures, Hg heads combined with single-crystalline β-HgS tails, with controllable sizes and well-defined interfaces have been fabricated for the first time via one-pot synthesis. Such heterostructures can exist in water with good stability due to coordination adsorption of cysteine molecules onto the surface of both Hg and HgS through Hg−S bonds. Two-probe current−voltage curve measurements reveal that good ohmic contacts without additional resistance contacts are generated at the interfaces of Hg/β-HgS heterostructures. Only existence of ohmic contacts offers many potential applications of metal−semiconductor heterostructures in minimization of electronic devices.