AI 中文总结
本研究开发了激光辅助近空间升华的无掩模快速图案化方法，实现有机发光二极管像素的微米级精确图案化，所制器件性能与传统工艺相当，适用于可扩展的显示器件制备。
AI 中文摘要
现有有机发光二极管显示器的图案化工艺虽能实现微米级精度，但大面积衬底的加工时间过长。本研究针对有源矩阵有机发光二极管显示器等应用，开发了一种用于图案化有机薄膜沉积的快速生长方法。该方法采用特制的施主衬底，结合激光加热的近空间升华配置，施主衬底包含空间图案化的吸收层和反射层，可实现有机材料向接收衬底的选择性一步或两步转移。我们分析了控制选择性转移机制的光学响应和热传递动力学，展示了具有微米级空间保真度的精确像素图案化。通过采用该快速转移工艺制备发光二极管器件，并与传统真空热蒸发制备的器件进行性能对比，验证了该方法的可靠性和实用性。所得器件表现出相当的光电性能，证实了该策略在可扩展制备用于显示应用的图案化有机发光二极管方面的稳健性和技术相关性。
英文摘要
Existing patterning processes for organic light-emitting diode displays offer micrometer-scale precision but are constrained by long processing times for large-area substrates. In this work, we study a fast growth method for patterned organic film deposition, aimed at applications including active-matrix organic light-emitting diode displays. The approach employs a specially engineered donor substrate in a close-space sublimation configuration combined with laser heating. The donor substrate incorporates spatially patterned absorber and reflector layers that enable selective, one-step or two-step transfer of organic material onto a receiver substrate. We analyze the optical response and heat-transfer dynamics that govern the selective transfer mechanism and demonstrate precise pixel patterning with micrometer-scale spatial fidelity. The reliability and practical applicability of the method are validated by fabricating light-emitting diode devices by using this rapid transfer process and benchmarking their performance against devices produced via conventional vacuum thermal evaporation. The resulting devices exhibit comparable optoelectronic performance, confirming the robustness and technological relevance of the proposed strategy for scalable fabrication of patterned organic light-emitting diodes for display application.
Comments17 pages, 6 figures
