Conical-shaped titania nanotubes for optimized light management in DSSCs reach back-side illumination efficiencies > 8%

被引：23

作者：

So, Seulgi ^{[1
,5
]}

Kriesch, Arian ^{[2
,3
,5
]}

Peschel, Ulf ^{[2
,3
,4
,5
]}

Schmuki, Patrik ^{[1
,5
]}

机构：

[1] Friedrich Alexander Univ Erlangen Nuremberg FAU, LKO WW4, Dept Mat Sci & Engn, D-91058 Erlangen, Germany

[2] Friedrich Alexander Univ Erlangen Nuremberg FAU, Inst Opt Informat & Photon, D-91058 Erlangen, Germany

[3] Friedrich Alexander Univ Erlangen Nuremberg FAU, Erlangen Grad Sch Adv Opt Technol SAOT, D-91058 Erlangen, Germany

[4] Univ Jena, Inst Solid State Theory & Opt, D-07743 Jena, Germany

[5] Friedrich Alexander Univ Erlangen Nuremberg FAU, Cluster Excellence Engn Adv Mat EAM, D-91058 Erlangen, Germany

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2015年 / 3卷 / 24期

基金：

欧洲研究理事会;

关键词：

SENSITIZED SOLAR-CELLS; TIO2; NANOTUBES; CONVERSION EFFICIENCY; CHARGE-COLLECTION; SMALL-DIAMETER; SCATTERING; ARRAYS; ABSORPTION; NANOWIRE; DESIGN;

D O I：

10.1039/c5ta02834e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present work, we introduce the anodic growth of conical shaped TiO2 nanotube arrays. These titania nanocones provide a scaffold for dye-sensitized solar cell (DSSC) structures with significantly improved photon management, providing an optimized absorption profile compared with conventional cylindrical nanotube arrays. Finite difference time domain (FDTD) modelling demonstrates a drastically changed power-absorption characteristic over the tube length. When used in a back-side illumination DSSC configuration, nanocone structures can reach over 60% higher solar cell conversion efficiency (eta) than conventional tubes. The resulting eta approximate to 8% represents one of the highest reported values for Gratzel type DSSCs used under backside illumination.

引用

页码：12603 / 12608

页数：6

Conical-shaped titania nanotubes for optimized light management in DSSCs reach back-side illumination efficiencies &gt; 8%

Conical-shaped titania nanotubes for optimized light management in DSSCs reach back-side illumination efficiencies > 8%