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新型锌掺杂二氧化钛纳米管/氧化锌纳米片异质结构的电化学合成及其对染料敏化太阳能电池效率的增强作用

Electrochemical Synthesis of Novel Zn-Doped TiO Nanotube/ZnO Nanoflake Heterostructure with Enhanced DSSC Efficiency.

作者信息

John K Aijo, Naduvath Johns, Mallick Sudhanshu, Pledger Jacob W, Remillard S K, DeYoung P A, Thankamoniamma Manju, Shripathi T, Philip Rachel Reena

机构信息

1Department of Physics Union Christian College, Aluva, Kerala India.

2Department of Metallurgical Engineering and Material Science, Indian Institute of Technology, Mumbai, Maharashtra India.

出版信息

Nanomicro Lett. 2016;8(4):381-387. doi: 10.1007/s40820-016-0099-z. Epub 2016 Jul 2.

DOI:10.1007/s40820-016-0099-z
PMID:30460296
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6223692/
Abstract

ABSTRACT

The paper reports the fabrication of Zn-doped TiO nanotubes (Zn-TONT)/ZnO nanoflakes heterostructure for the first time, which shows improved performance as a photoanode in dye-sensitized solar cell (DSSC). The layered structure of this novel nanoporous structure has been analyzed unambiguously by Rutherford backscattering spectroscopy, scanning electron microscopy, and X-ray diffractometer. The cell using the heterostructure as photoanode manifests an enhancement of about an order in the magnitude of the short circuit current and a seven-fold increase in efficiency, over pure TiO photoanodes. Characterizations further reveal that the Zn-TONT is preferentially oriented in [001] direction and there is a Ti metal-depleted interface layer which leads to better band alignment in DSSC.

摘要

摘要

本文首次报道了锌掺杂二氧化钛纳米管（Zn-TONT）/氧化锌纳米片异质结构的制备，该结构在染料敏化太阳能电池（DSSC）中作为光阳极表现出了更好的性能。通过卢瑟福背散射光谱、扫描电子显微镜和X射线衍射仪对这种新型纳米多孔结构的层状结构进行了明确分析。与纯二氧化钛光阳极相比，使用该异质结构作为光阳极的电池短路电流大小提高了约一个数量级，效率提高了七倍。表征进一步揭示，Zn-TONT优先沿[001]方向取向，并且存在一个钛金属耗尽的界面层，这导致了DSSC中更好的能带排列。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd3/6223692/bcc27c847d74/40820_2016_99_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd3/6223692/737889ac4a9b/40820_2016_99_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd3/6223692/391bf7777936/40820_2016_99_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd3/6223692/6b6e724dd722/40820_2016_99_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd3/6223692/0a7b083e20f9/40820_2016_99_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd3/6223692/2bd5f878774d/40820_2016_99_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd3/6223692/bcc27c847d74/40820_2016_99_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd3/6223692/737889ac4a9b/40820_2016_99_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd3/6223692/391bf7777936/40820_2016_99_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd3/6223692/6b6e724dd722/40820_2016_99_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd3/6223692/0a7b083e20f9/40820_2016_99_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd3/6223692/2bd5f878774d/40820_2016_99_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd3/6223692/bcc27c847d74/40820_2016_99_Fig6_HTML.jpg

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