Hybrid Chalcopyrite–Polymer Magnetoconducting Materials

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• 作者：Zhuolei Zhang ; Beibei Xu ; Lin Zhang ; Shenqiang Ren
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：May 11, 2016
• 年：2016
• 卷：8
• 期：18
• 页码：11215-11220
• 全文大小：481K
• 年卷期：0
• ISSN：1944-8252

文摘

The search for emerging materials combining magnetic and semiconducting properties has attracted widespread interest in contemporary materials science. Chalcopyrite (CuFeS₂), as an earth abundant and nontoxic chalcogenide compound in the I–III–VI₂ family, is a promising class of such materials that exhibit unusual electrical, optical, and magnetic properties. However, its successful implementation largely depends on our ability to understand, control and manipulate their structural, transport and spin behavior. Here we show that solution processing monodispersed CuFeS₂ quantum dots exhibit a strong coupling among optical, electronic, and magnetic degrees of freedom. The photoresponse and magnetoconductance of CuFeS₂ quantum dots are realized under external stimuli. We further exploit a fast and efficient way to achieve an exceptionally large performance in a magneto-optoelectronic hybrid system consisting of magnetic semiconducting CuFeS₂ and conducting polymer matrix. The results demonstrate a promising potential of magnetic semiconductor CuFeS₂ in the field of spin electronics.