本研究利用兩階段水熱反應合成出二氧化鈦，經由TEM、XRD、Raman、HR-TEM及BET鑑定下，可發現合成出的二氧化鈦為單晶的anatase奈米棒且具有相當的表面積。利用修改後的凝膠-溶膠法可製備更長的二氧化鈦奈米棒。二氧化鈦奈米棒具高分散性及無大的聚集體，所以可製造結構緊密且無裂痕的二氧化鈦薄膜。
以terpineol為基底的二氧化鈦奈米棒與P25漿料製成的電極，在染料敏化太陽能電池上可獲得相同的光電轉化效能(4.57 %)。由於奈米棒薄膜具有較佳的導電性及透明度，但也因此缺乏散射性，所以為了提高效能，添加適量的散射粒子(P25)與奈米棒混，其重量比分別為：25 wt% (P1/R3)、50 wt% (P1/R1)與75 wt% (P3/R1)，可在P1/R3和P1/R1獲得更高轉化效能5.18 %和5.08 %。同時我們觀察到二氧化鈦奈米棒薄膜有良好熱穩定性，在經過550C燒結後依然保有其形態與單晶性。最後，改善電池組裝製程可提高P25的效率從4.57 %到4.88 %，二氧化鈦奈米棒甚至可達5.67 %。

The single-crystalline anatase TiO2 nanorods (NRs) have been synthesized by two steps in hydrothermal reaction and characterized by TEM, HR-TEM and BET. TiO2 NRs are also identified by Raman and XRD, presented only existence of anatase phase. Long TiO2 NRs (LNRs) also can be prepared by a modified gel-sol process. Monodispersed TiO2 NR particles exhibit high dispersity without large agglomerates, which result in a compact and crack-free TiO2 thin film.
The light-to-electricity of terpineol-based TiO2 pastes with TiO2 NRs and P25 electrodes in dye-sensitized solar cell is obtained the same conversion efficiency 4.57 %. Owing to TiO2 NRs have better conductivity, transparency but lack of scattering property; three different P25/NRs composites are prepared with 25 wt% (P1/R3), 50 wt% (P1/R1), and 75 wt% (P3/R1) NRs, respectively. Higher conversion efficiency of 5.18 % and 5.08 % are achieved by P1/R3 and P1/R1, respectively, due to cooperation of suitable combination of NRs and scattering particulate P25. We also observed that the TiO2 NR film have good thermal stability because of maintaining its morphology and single-crystalline phase even though after sintering at 550 ℃. Finally, an enhancement of efficiency from 4.57 % to 4.88 % and even 5.67 % for P25 and TiO2 NRs, respectively, results from an improved cell assembly procedure.

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