School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, South Korea.
Nanoscale. 2013 Feb 7;5(3):1188-94. doi: 10.1039/c2nr33114d. Epub 2013 Jan 8.
One-dimensional (1-D) SnO(2) nanorods (NRs) with a rutile structure are grown on various substrates regardless of the lattice-mismatch by using a new nutrient solution based on tin oxalate, which generated supersaturated Sn(2+) sources. These affluent sources are appropriate for producing a large number of SnO(2) nanoparticles, sufficient for stacking on a substrate surface by gravity, which then acts as a seed layer for subsequent nanorod growth. Single crystalline nanorods are grown along the [001] direction by the oriented attachment phenomenon in which the attached nanoparticles were rearranged to reduce the overall surface energy through sharing thermodynamically unstable crystal (001) planes. Furthermore, the grown SnO(2) NRs are covered with a TiO(2) particulate film and utilized as a photoanode in DSSCs. The power conversion efficiency is 8.61%, enhanced by 14.2% compared to the photoanode with only a TiO(2) particulate film.
一维（1-D）SnO(2)纳米棒（NRs）具有金红石结构，通过使用基于草酸锡的新型营养溶液在各种衬底上生长，无论晶格失配如何，这种新型营养溶液都会产生过饱和 Sn(2+)源。这些丰富的来源适合生产大量的 SnO(2)纳米粒子，足以通过重力堆积在衬底表面上，然后作为后续纳米棒生长的种子层。单晶纳米棒沿[001]方向生长，通过定向附着现象，附着的纳米粒子通过共享热力学不稳定晶体（001）面来重新排列以降低整体表面能。此外，生长的 SnO(2) NR 被 TiO(2)颗粒膜覆盖，并用作 DSSC 的光阳极。与仅具有 TiO(2)颗粒膜的光阳极相比，其功率转换效率提高了 14.2%，达到 8.61%。
