Dye-sensitized TiO2 nanotube solar cells with markedly enhanced performance via rational surface engineering

Jun Wang, Zhiqun Lin

Research output: Contribution to journalArticlepeer-review

278 Scopus citations

Abstract

Highly ordered anodic TiO2 nanotube arrays fabricated by electrochemical anodization were sensitized with ruthenium dye N-719 to yield dye-sensitized TiO2 nanotube solar cells. Rational surface treatments on photoanode TiO2 nanotubes markedly improved the device performance. With TiCl4 treatment, in conjunction with oxygen plasma exposure under optimized conditions, dye-sensitized TiO2 nanotube solar cells produced using 14-μm-thick TiO2 nanotube arrays in backside illumination mode subjected to simulated AM 1.5 G irradiation of 100 mW/cm 2 exhibited a pronounced power conversion efficiency (PCE) of 7.37%.

Original languageEnglish
Pages (from-to)579-584
Number of pages6
JournalChemistry of Materials
Volume22
Issue number2
DOIs
StatePublished - 26 Jan 2010

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