Li plus doped anodic TiO2 nanotubes for enhanced efficiency of Dye-sensitized solar cells

被引：13

作者：

Cha, Gihoon ^{[1
,5
]}

Ozkan, Selda ^{[1
,6
]}

Hwang, Imgon ^{[1
]}

Mazare, Anca ^{[1
,2
]}

Schmuki, Patrik ^{[1
,3
,4
]}

机构：

[1] Friedrich Alexander Univ Erlangen Nuremberg, Dept Mat Sci WW4, LKO, Martensstr 7, D-91058 Erlangen, Germany

[2] Tohoku Univ TU, Natl Univ Corp, Adv Inst Mat Res AIMR, Sendai 9808577, Japan

[3] Palacky Univ, Czech Adv Technol & Res Inst, Reg Ctr Adv Technol & Mat, Krizkovskeho 511-8, Olomouc 77900, Czech Republic

[4] King Abdulaziz Univ, Fac Sci, Dept Chem, POB 80203, Jeddah 21569, Saudi Arabia

[5] Univ Bayreuth, Bavarian Ctr Battery Technol BayBatt, D-95447 Bayreuth, Germany

[6] Univ St Andrews, Sch Chem, St Andrews, Scotland

来源：

SURFACE SCIENCE | 2022年 / 718卷

关键词：

Anodization; Dye-sensitized solar cell (DSSC); Li ion intercalation; TiO2 nanotubes (TiO2 NTs); LITHIUM INTERCALATION; ANATASE; NANOPARTICLES; CONVERSION; ARRAYS;

D O I：

10.1016/j.susc.2021.122012

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：

The insertion of cations such as H+ and Li+ to TiO2 photoelectrodes is a universally recognized method to enhance the electric conductivity of TiO2 electrodes. In the present work we report on the fabrication and use of Li+ inserted TiO2 nanotubes (NTs) as a photoanode scaffold in dye-sensitized solar cells (DSSCs). Li+ was successfully inserted into the TiO2 NTs by a cathodic treatment in 1 M LiClO4/ethylene carbonate (EC) electrolyte. We observe for DSSCs fabricated from such nanotubes an overall solar cell efficiency of ~& nbsp;7.1% compared to an efficiency of ~& nbsp;5.7% for the non Li-intercalated electrode. We ascribe this enhancement to a faster electron transport and an increased conductivity in the lithiated TiO2 NTs.& nbsp;

引用

页数：7

共 51 条

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