Opt Lett. 2022 Nov 15;47(22):5770-5772. doi: 10.1364/OL.474783.
Flexibility, certain mechanical strength, and color modulation are significant elements for flexible optoelectronic devices. However, it is laborious to fabricate a flexible electroluminescent device with balanceable flexibility and color modulation. Here, we mix a conductive nonopaque hydrogel and phosphors to fabricate a flexible alternating current electroluminescence (ACEL) device with color modulation ability. This device realizes flexible strain based on polydimethylsiloxane and carboxymethyl cellulose/polyvinyl alcohol ionic conductive hydrogel. The color modulation ability is achieved by varying the voltage frequency applied on the electroluminescent phosphors. The color modulation could realize blue and white light modulation. Our electroluminescent device exhibits great potential in artificial flexible optoelectronics.
柔韧性、一定的机械强度和颜色调制是柔性光电设备的重要元素。然而，要制造具有平衡柔韧性和颜色调制能力的柔性电致发光器件是很费力的。在这里，我们混合了一种导电不透明水凝胶和荧光粉，以制造具有颜色调制能力的柔性交流电致发光（ACEL）器件。该器件基于聚二甲基硅氧烷和羧甲基纤维素/聚乙烯醇离子导电水凝胶实现了柔性应变。通过改变施加在电致发光荧光粉上的电压频率来实现颜色调制。颜色调制可以实现蓝色和白色光的调制。我们的电致发光器件在人工柔性光电子学中具有很大的潜力。
