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首页> 外文期刊>Applied Surface Science >Direct Imprinting Of Ordered And Dense Tio_2 Nanopore Arrays By Using A Soft Template For Photovoltaic Applications
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Direct Imprinting Of Ordered And Dense Tio_2 Nanopore Arrays By Using A Soft Template For Photovoltaic Applications

机译：通过使用用于光伏应用的软模板，有序和密集的Tio_2纳米孔阵列的直接压印

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摘要

Highly ordered and dense TiO_2 nanopore arrays are directly nanoimprinted on a transparent conductive glass substrate by using a polymethylmethacrylate/polydimethylsiloxane (PMMA/PDMS) composite soft template, which is replicated from an anodic aluminum oxide (AAO) replica mold. Results indicate that heat infiltration under vacuum conditions can ensure complete filling of PMMA into the AAO pores, and that free-standing PMMA nanorods with an aspect ratio more than 5 can be obtained by adjusting the AAO pore depth based on a freeze-drying technique. TiO_2 nanopore arrays with different diameters from 30 to 300 nm and inter-pore distances between 70 and 450 nm can be easily fabricated by using the corresponding templates with different sizes. Preliminary solar cells are also assembled with a heterojunction of conjugated polymer/TiO_2 nanopore arrays. Results indicate that the construction of poly-(3-hexylthiophene) (P3HT)/TiO_2 nanopore arrays can be more helpful in quenching the PL emission of P3HT than that of P3HT/flat TiO_2 film, and a maximum efficiency of about 0.32% can be obtained for a photovoltaic device with a TiO_2/[6,6]-phenyl-C6i-butyric acid methyl ester (PCBM)/P3HT structure.
机译：通过使用从阳极氧化铝（AAO）复制模具复制来的聚甲基丙烯酸甲酯/聚二甲基硅氧烷（PMMA / PDMS）复合软模板，将高度有序且致密的TiO_2纳米孔阵列直接纳米压印在透明导电玻璃基板上。结果表明，在真空条件下的热渗透可以确保将PMMA完全填充到AAO孔中，并且可以通过基于冷冻干燥技术调整AAO孔深度来获得纵横比大于5的独立式PMMA纳米棒。通过使用具有不同尺寸的相应模板，可以容易地制造直径为30至300 nm，孔间距离为70至450 nm的TiO_2纳米孔阵列。初步的太阳能电池也用共轭聚合物/ TiO_2纳米孔阵列的异质结组装。结果表明，聚（3-己基噻吩）（P3HT）/ TiO_2纳米孔阵列的构建比P3HT /扁平TiO_2薄膜更能有助于猝灭P3HT的PL发射，最大效率约为0.32％。用于具有TiO_2 / [6,6]-苯基-C6i-丁酸甲酯（PCBM）/ P3HT结构的光伏器件。

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  • 来源
    《Applied Surface Science》 |2011年第23期|p.9872-9878|共7页
  • 作者

    Peng Zhong; Wenxiu Que; X. Hu;

  • 作者单位

    Electronic Materials Research Laboratory, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, People's Republic of China International Center for Dielectric Research, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, People's Republic of China;

    Electronic Materials Research Laboratory, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, People's Republic of China International Center for Dielectric Research, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, People's Republic of China;

    School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Nanoimprint; TiO_2 nanopore array; Soft template; Anodic aluminum oxide; Solar cell;

    机译：纳米压印TiO_2纳米孔阵列软模板阳极氧化铝太阳能电池;

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