College of Physics and Energy, Fujian Normal University, Fuzhou 350108, People's Republic of China.
Nanoscale Res Lett. 2013 Apr 8;8(1):158. doi: 10.1186/1556-276X-8-158.
ZnO nanorod arrays (NRAs) on transparent conductive oxide (TCO) films have been grown by a solution-free, catalyst-free, vapor-phase synthesis method at 600°C. TCO films, Al-doped ZnO films, were deposited on quartz substrates by magnetron sputtering. In order to study the effect of the growth duration on the morphological and optical properties of NRAs, the growth duration was changed from 3 to 12 min. The results show that the electrical performance of the TCO films does not degrade after the growth of NRAs and the nanorods are highly crystalline. As the growth duration increases from 3 to 8 min, the diffuse transmittance of the samples decreases, while the total transmittance and UV emission enhance. Two possible nanorod self-attraction models were proposed to interpret the phenomena in the sample with 9-min growth duration. The sample with 8-min growth duration has the highest total transmittance of 87.0%, proper density about 75 μm-2, diameter about 26 nm, and length about 500 nm, indicating that it can be used in hybrid solar cells.
在 600°C 下，通过无溶液、无催化剂的气相合成方法在透明导电氧化物（TCO）薄膜上生长了 ZnO 纳米棒阵列（NRAs）。TCO 薄膜，即掺铝氧化锌薄膜，通过磁控溅射沉积在石英衬底上。为了研究生长时间对 NRAs 形态和光学性能的影响，将生长时间从 3 分钟延长至 12 分钟。结果表明，TCO 薄膜的电学性能在 NRAs 生长后不会下降，并且纳米棒具有高结晶度。随着生长时间从 3 分钟增加到 8 分钟，样品的漫透射率降低，而总透射率和紫外发射增强。提出了两种可能的纳米棒自吸引模型来解释生长时间为 9 分钟的样品中的现象。生长时间为 8 分钟的样品具有最高的总透射率 87.0%，合适的密度约为 75 μm-2，直径约为 26nm，长度约为 500nm，表明其可用于混合太阳能电池。
