Liu Gui-xiang, Jin Xiang, Wu Hong-ye, Wang Gui-xia, Lu Yi
College of Physics Science and Technology, Baotou Teachers College, Baotou 014030, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2010 Nov;30(11):2911-3.
By adding the thulium oxide nanoparticles (NP) of Gd2 O3 and Eu2O3 and Nd2O3 to polymer dispersed liquid crystals (PDLC), and the transmittances of PDLC and NP-PDLC changing with voltage in visible light was tested, and the thulium oxide modulation for PDLC was studied. The results show that transmittance of Gd2O3-NP-PDLC decreases with increasing voltage when the voltage is less than 10 V. The relaxation phenomenon of the sample appears at 15 V, and its transmittance curve fluctuates slightly around that at 10 V. The transmittance of Gd2O3-NP-PDLC increases rapidly at 20 V, and its filter phenomenon emerges. And the transmittance of Eu2O3-NP-PDLC decreases with increasing voltage, but the decrease is only slight. And the transmittance of Nd2O3-NP-PDLC changes with voltage insignificantly.
通过向聚合物分散液晶（PDLC）中添加氧化钆、氧化铕和氧化钕的氧化铥纳米颗粒（NP），测试了PDLC和NP-PDLC在可见光下的透过率随电压的变化情况，并研究了氧化铥对PDLC的调制作用。结果表明，当电压小于10 V时，Gd2O3-NP-PDLC的透过率随电压升高而降低。样品在15 V时出现弛豫现象，其透过率曲线在10 V时附近略有波动。Gd2O3-NP-PDLC在20 V时透过率迅速增加，并出现滤光现象。而Eu2O3-NP-PDLC的透过率随电压升高而降低，但降低幅度较小。Nd2O3-NP-PDLC的透过率随电压变化不明显。
