Hierarchical oriented anatase TiO2 nanostructure arrays on flexible substrate for efficient dye-sensitized solar cells.
Hierarchical oriented anatase TiO2 nanostructure arrays on flexible substrate for efficient dye-sensitized solar cells.
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DOI：
10.1038/srep01892
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发表时间：
2013
影响因子：
4.6
通讯作者：
Kuang DB
中科院分区：
文献类型：
--
作者：
Wu WQ;Rao HS;Xu YF;Wang YF;Su CY;Kuang DB
采用两步水热法在钛箔衬底上合成了由截断的{001}面组成的垂直取向锐钛矿型单晶TiO2纳米结构阵列（TNAs）或由多个纳米晶组成的分层TiO2纳米管（HNTs）。Ti箔与NaOH的第一步水热反应生成钛酸氢纳米线阵列，然后进行第二步水热反应得到定向锐钛矿型单晶TiO2纳米结构，如在NH4F水溶液存在下由截断的八面体TiO2纳米晶组装而成的TiO2纳米阵列或在纯水存在下由纳米晶组成的分层TiO2纳米管。随后，这些TiO2纳米结构被用于生产背面照明模式的染料敏化太阳能电池，其功率转换效率（PCE）分别为4.66% （tna, JSC = 7.46 mA cm - 2, VOC = 839 mV, FF = 0.75）和5.84% （HNTs, JSC = 10.02 mA cm - 2, VOC = 817 mV, FF = 0.72）。
The vertically oriented anatase single crystalline TiO2 nanostructure arrays (TNAs) consisting of TiO2 truncated octahedrons with exposed {001} facets or hierarchical TiO2 nanotubes (HNTs) consisting of numerous nanocrystals on Ti-foil substrate were synthesized via a two-step hydrothermal growth process. The first step hydrothermal reaction of Ti foil and NaOH leads to the formation of H-titanate nanowire arrays, which is further performed the second step hydrothermal reaction to obtain the oriented anatase single crystalline TiO2 nanostructures such as TiO2 nanoarrays assembly with truncated octahedral TiO2 nanocrystals in the presence of NH4F aqueous or hierarchical TiO2 nanotubes with walls made of nanocrystals in the presence of pure water. Subsequently, these TiO2 nanostructures were utilized to produce dye-sensitized solar cells in a backside illumination pattern, yielding a significant high power conversion efficiency (PCE) of 4.66% (TNAs, JSC = 7.46 mA cm−2, VOC = 839 mV, FF = 0.75) and 5.84% (HNTs, JSC = 10.02 mA cm−2, VOC = 817 mV, FF = 0.72), respectively.
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影响因子：
17.1
作者：
Kuang, Daibin;Brillet, Jeremie;Graetzel, Michael
通讯作者：
Graetzel, Michael
影响因子：
32.5
作者：
Bierman, Matthew J.;Jin, Song
通讯作者：
Jin, Song
影响因子：
4.9
作者：
Jung, Mi-Hee;Chu, Moo-Jung;Kang, Man Gu
通讯作者：
Kang, Man Gu
影响因子：
--
作者：
Fan, Ke;Chen, Junnian;Peng, Tianyou
通讯作者：
Peng, Tianyou
影响因子：
4.3
作者：
Liao, Jin-Yun;Lei, Bing-Xin;Kuang, Dai-Bin
通讯作者：
Kuang, Dai-Bin