标题: 利用雷射扫描直写技术制作之钙钛矿量子点色彩转换层调变白光有机发光电化学元件之色温
Tuning color temperature of white light-emitting electrochemical cells by laser-scanned perovskite-nanocrystal color conversion layers
作者: 吴玟光
杨斯博
Wu, Wen-Kuang
Yang, Zu-Po
光电系统研究所
关键字: 钙钛矿量子点;有机发光电化学元件;色温;light-emitting electrochemical cells;perovskites;color temperature
公开日期: 2017
摘要: 由于白光有机发光电化学元件有很大的优势,所以其近期发展备受瞩目,再加上近年来钙钛矿材料的崛起,它对于光吸收及放射有着杰出的光电特性,因此适合拿来当作有机发光元件的色彩转换层。在此,本实验将利用单一材料的钙钛矿量子点当作色彩转换层,并结合未掺杂的蓝绿光有机发光电化学元件组合出白光的有机发光电化学元件;除此之外,本实验将藉由雷射扫描的方法去改变色彩转换层上的光学特性,达到调变色温的效果,而色温的调变范围可从2168K~7230K。相较于传统透过混合多种颜色的钙钛矿量子点组成的色彩转换层所产生的白光,本实验的方法可以避免多种颜色钙钛矿之间离子交换的现象发生。
Development of white light-emitting electrochemical cells (LECs) has attracted great attention in consideration of their advantages. Recently, perovskite materials have also shown many outstanding optoelectronic properties of light absorption and emission, and hence are suitable for serving the color conversion layers (CCLs) of the solid-state white light emitting diodes (LEDs). Here, we fabricated the white LECs by integrating the non-doped blue-green LECs with the CCLs made by single composition of perovskite nanocrystal (NCs). Moreover, we proposed and demonstrated that the correlated color temperatures (CCTs) of the white LECs can be tuned through laser scan. The CCTs of the white LECs can be tuned from 2168 K to 7230 K. This method is much different from the conventional CCLs of using multiple compositions of perovskite NCs in CCLs to produce white light, so that it can avoid the inherent anion-exchange issue of perovskite NCs.
URI: http://etd.lib.nctu.edu.tw/cdrfb3/record/nctu/#GT070358027
http://hdl.handle.net/11536/142781
显示于类别:Thesis