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首页> 外文期刊>Physica, B. Condensed Matter >An exploration into the quantum confinement of CTS/natural dye core-shell quantum dots
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An exploration into the quantum confinement of CTS/natural dye core-shell quantum dots

机译：CTS /天然染料核心壳量子点量子禁闭的探索

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摘要

In this work, we have presented a simple way of changing the confinement energies of Copper Tin Sulphide (CTS) quantum dots using natural dyes as shell material. Tetragonal CTS quantum dots in the size range of 1.7 nm-2.2 nm, of bandgaps of 2.48eV and 5.0 eV were prepared by means of a green colloidal synthesis technique. These quantum dots were treated with natural dyes such as onion and beetroot skin dyes. Pelargonidin and Betanin (pigments of onion and beetroot skin dye respectively) formed hydrogen bonding with the capping agent, thus forming a shell around the CTS quantum dots. The change in confinement due to the effect of dye as shell was studied from absorption, photoluminescence and infrared spectroscopic techniques. The transitions occurring were analysed using a theoretical approach. CTS quantum dots, with its high transmittance in a wide range of wavelengths find promising applications in the buffer layer of solar cells.
机译：在这项工作中，我们介绍了一种简单的方法，可以使用天然染料作为壳材料改变铜硫化铜（CTS）量子点的限制能量。 通过绿色胶体合成技术制备尺寸范围为1.7nm-2.2nm的四边形CTS量子点，为2.48EV和5.0eV的带隙。 这些量子点用天然染料处理，例如洋葱和甜菜根皮肤染料。 Pelargonidin和Betanin（分别为洋葱和甜菜根皮肤染料的颜料）与封端剂形成氢键合，从而形成Cts量子点周围的壳。 从吸收，光致发光和红外光谱技术中研究了染料效果引起的限制的变化。 使用理论方法分析发生的过渡。 CTS量子点，其高透射率在广泛的波长范围内，在太阳能电池的缓冲层中找到了有希望的应用。

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