Site-selective deposition and morphology control of UV- and visible-light-emitting ZnO crystals
Site-selective deposition and morphology control of UV- and visible-light-emitting ZnO crystals
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DOI：
10.1021/cg050124t
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发表时间：
2006-01-01
影响因子：
3.8
通讯作者：
Koumoto, K
中科院分区：
文献类型：
--
作者：
Masuda, Y;Kinoshita, N;Koumoto, K
在低温水溶液中成功实现了发射紫外光和可见光的ZnO晶体的定点沉积。分子识别被有效地用于自组装单分子膜上ZnO晶体的图案化。通过改变溶液条件进一步控制晶体ZnO具有不同的形貌，如圆柱形六角棒、椭圆形或多针状，以改善光致发光性能。所有的形貌在紫外和可见光区发射出不同的发射光谱。该新工艺显示了用于制造由用于可见光发射器件的晶体材料构造的纳米/微米器件的溶液工艺的高潜力。
Site-selective deposition of UV- and visible-light-emitting ZnO crystals was successfully achieved in an aqueous solution at low temperature. Molecular recognition was effectively utilized for patterning of ZnO crystals on self-assembled monolayers. Crystalline ZnO was further controlled to have different morphologies such as cylindrical hexagonal rods, ellipses, or multineedle shapes by changing the solution conditions to improve the photoluminescence properties. All of the morphologies emitted strong photoluminescence in UV and visible regions with different emission spectra. The novel process shows the high potential of solution processes for fabricating nano/microdevices constructed from crystalline materials for visible-light-emitting devices.