基于 ZnO 纳米粒子和纳米棒阵列杂化光电阳极的固态染料敏化太阳能电池。

Solid-state dye-sensitized solar cells based on ZnO nanoparticle and nanorod array hybrid photoanodes.

机构信息

Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843, USA.

出版信息

Nanoscale Res Lett. 2011 Sep 1;6(1):517. doi: 10.1186/1556-276X-6-517.

DOI:10.1186/1556-276X-6-517

PMID:21884596

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3212056/

Abstract

The effect of ZnO photoanode morphology on the performance of solid-state dye-sensitized solar cells (DSSCs) is reported. Four different structures of dye-loaded ZnO layers have been fabricated in conjunction with poly(3-hexylthiophene). A significant improvement in device efficiency with ZnO nanorod arrays as photoanodes has been achieved by filling the interstitial voids of the nanorod arrays with ZnO nanoparticles. The overall power conversion efficiency increases from 0.13% for a nanorod-only device to 0.34% for a device with combined nanoparticles and nanorod arrays. The higher device efficiency in solid-state DSSCs with hybrid nanorod/nanoparticle photoanodes is originated from both large surface area provided by nanoparticles for dye adsorption and efficient charge transport provided by the nanorod arrays to reduce the recombinations of photogenerated carriers.

摘要

报道了 ZnO 光阳极形态对固态染料敏化太阳能电池（DSSC）性能的影响。与聚（3-己基噻吩）结合，制备了四种不同结构的负载染料的 ZnO 层。通过用 ZnO 纳米粒子填充纳米棒阵列的间隙空隙，用 ZnO 纳米棒阵列作为光阳极的器件的效率得到了显著提高。整体功率转换效率从仅使用纳米棒的器件的 0.13%提高到具有纳米粒子和纳米棒阵列的组合的器件的 0.34%。在具有混合纳米棒/纳米粒子光阳极的固态 DSSC 中，器件效率较高，这源于纳米粒子提供的大表面积，用于染料吸附，以及纳米棒阵列提供的有效电荷传输，以减少光生载流子的复合。