Yang Jian, Wang Wenzhong, Ma Yi, Wang D Z, Steeves D, Kimball B, Ren Z F
Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467, USA.
J Nanosci Nanotechnol. 2006 Jul;6(7):2196-9. doi: 10.1166/jnn.2006.363.
Sodium chloride (NaCl) was found to be very helpful in producing single crystal zinc oxide (ZnO) nanowires in gram quantities. The growth involves heating the mixture of zinc powder and NaCl to 600-700 degrees C in flowing gases of oxygen and argon. A conversion efficiency of 70-80% (Zn to ZnO) was achieved when NaCl was used, and 5-10% without NaCl. The NaCl was completely removed by soaking and rinsing the mixture in water a few times. Photoluminescence spectra using excitation of 325 nm showed a very strong emission only in the visible frequency range, indicating that the surface states dominate the emission.
人们发现，氯化钠（NaCl）对于大量制备单晶氧化锌（ZnO）纳米线非常有帮助。该生长过程包括在氧气和氩气的流动气体中将锌粉和氯化钠的混合物加热至600 - 700摄氏度。使用氯化钠时，实现了70 - 80%（锌转化为氧化锌）的转化效率，而不使用氯化钠时为5 - 10%。通过将混合物在水中浸泡并冲洗几次，氯化钠被完全去除。使用325 nm激发的光致发光光谱显示，仅在可见光频率范围内有非常强的发射，这表明表面态主导了发射。
