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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Colloidal nanorod heterostructures for photovoltaics and optoelectronics
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Colloidal nanorod heterostructures for photovoltaics and optoelectronics

机译：用于光伏和光电子的胶体纳米棒异质结构

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摘要

Colloidal quantum dots (QDs) synthesized in versatile, easy-to-process solutions are opening up exciting prospects in multiple areas, especially in biomedical imaging, photovoltaics, solid-state lighting and displays. The success of most of these prospects relies on high-quality heterostructures that improve optical properties. In particular, the core/shell heterostructure with a type I straddling band offset has been indispensable but the applicability is often limited to those exploiting only photoluminescence. QDs and their heterostructures can also be made with anisotropic shapes that allow access to essentially an unlimited number of combinations of size, shape and composition. Structures that allow enhancement of optical properties and physical accessibility for carrier injection/extraction simultaneously can open up new and exciting prospects in photovoltaics and optoelectronics. This topical review focuses on nanorod-based colloidal semiconductor heterostructures. Two-component, type II staggered band offset nanorod heterostructures capable of efficiently separating photoinduced charges are first discussed. Double heterojunction nanorods that contain three different phases are then considered with respect to their novelty and potential as emissive materials in light-emitting diodes. We conclude with an outlook on the possibility of developing colloidal nanorods that contain epitaxial interfaces beyond the conventional semiconductor heterojunctions.
机译：在多功能的易于处理的解决方案中合成的胶体量子点（QDS）正在多个区域开辟令人兴奋的前景，特别是在生物医学成像，光伏，固态照明和显示器中。大多数前景的成功依赖于改善光学性质的高质量异质结构。特别地，具有I型跨越带偏移的芯/壳异质结构一直是必不可少的，但是适用性通常仅限于仅利用光致发光的那些。 QDS及其异质结构也可以具有各向异性形状，允许进入基本上是无限数量的尺寸，形状和组成组合。允许增强光学性能和用于载体喷射/提取的物理可访问性的结构可以同时开辟光伏和光电子的新的和激动令人兴奋的前景。该题单综述重点介于基于纳米德的胶体半导体异质结构。双组分，首先讨论能够有效地分离光诱导电荷的II型交错带偏移纳米杆异质结构。然后考虑含有三个不同相三种不同相的双异质结纳米棒作为发光二极管中的发光材料的新颖性和潜力。我们结束了展望展开胶体纳米棒的可能性，该胶体纳米棒含有超出常规半导体异质结的外延界面。

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