1. 毕业设计（论文）的内容和要求

继节能荧光灯和led之后，有机发光器件（oled）因具有超轻薄、全固态、自发光、颜色丰富、响应快、低功耗、可柔性化等诸多性能，备受科学界和产业界的重视。

虽然发展迅速，但是oled仍然需要进一步提高发光效率，才能够真正与led相媲美。

目前的oled由于器件中各层材料的折射率不能够很好匹配，特别在ito/玻璃界面处会发生严重的全反射，这样会让大部分的光被陷在薄膜结构中，导致外量子效率比内量子效率显著要低。

2. 参考文献

[1] Tang C W, Vanslyke S A. Organic electroluminescent diodes [J]. Applied Physics Letters, 1987, 51(12): 913-915. [2] Baldo M A, Brien D F O, You Y, et al. Highly efficient phosphorescent emission from organic electroluminescent devices [J].Nature, 1998, 395:151-154. [3] Sun Y U, Giebink N C, Kanno H, et al. Management of singlet and triplet excitons for efficient white organic light-emitting devices [J]. Nature, 2006, 440: 908-912. [4] Reineke S, Lindner F, Schwartz G, et al. White organic light-emitting diodes with fluorescent tube efficiency [J]. Nature, 2009, 459: 234-238. [5] Yang J P, Bao Q Y, Xu Z Q, et al. Light out-coupling enhancement of organic light-emitting devices with microlens array [J]. Applied Physics Letters, 2010, 97(22): 223303. [6] Shiang J J, Duggal A R. Application of radiative transport theory to light extraction from organic light emitting diodes [J]. Journal of Applied Physics, 2004, 95(5): 2880. [7] Sun Y R, Forrest S R. Enhanced light out-coupling of organic light-emitting devices using embedded low-index grids [J]. Nature Photonics, 2008(2): 483-487. [8] Takada N, Tsutsui T, Saito S. Control of emission characteristics in organic thin-film electroluminescent diodes using an optical-microcavity structure [J]. Applied Physics Letters, 1993, 63(15): 2032-2034. [9] Gu G, Garbuzov D Z, Burrows P E, et al. High-external-quantum-efficiency organic light-emitting devices [J]. Optics Letter, 1997, 22(6): 396-398. [10] Wang Z B, Helander M G, Xu F X, et al. Optical design of organic light emitting diodes [J]. Journal of Applied Physics, 2011, 109(5): 053107 [11] Epstein A, Tessler N, and Einziger P D. The impact of spectral and spatial exciton distributions on optical emission from thin-film weak-microcavity organic light-emitting diodes [J]. IEEE Journal of Quantum Electron, 2010, 46(9): 1388-1395. [12] Ishihara, K., et al. Organic light-emitting diodes with photonic crystals on glass substrate fabricated by nanoimprint lithography [J]. Applied Physics Letters, 2007, 90:111114. [13] Saxena K, Jain V K, and Mehta D S. A review on light extraction techniques in organic electroluminescent devices [J]. Optical Materials, 2009, 32: 221-233. [14] Sei-Yong Kim, Jang-Joo Kim, Outcoupling efficiency of organiclight emitting diodes and the effect of ITO thickness [J], Organic Electronics, 2010,11: 1010. [15] Nowy, S, Krummacher B C, Frischeien J, et al. Light extraction and optical loss mechanisms in organic light-emitting diodes: Influence of the emitter quantum efficiency [J]. Journal of Applied Physics, 2008 104(12): 123109. [16] Meerheim, R., Furno M, Hofman S, et al. Quantification of energy loss mechanisms in organic light-emitting diodes [J]. Applied Physics Letters, 2010, 97: 253305. [17] Br#252;tting W, Frischeisen J, Schmidt T D, et al. Device efficiency of organic light-emitting diodes: Progress by improved light outcoupling [J]. Physica Status Solidi (a). 2013, 210 (1) : 44-65. [18] Hofmann S, Thomschke M, Freitag P, et al. Top-emitting organic light-emitting diodes: Influence of cavity design [J]. Applied Physics Letters. 2010, 97 (25): 278. [19] Jordan R H, Dodabalapur A, Slusher R E. Efficiency enhancement of microcavity organic light emitting diodes [J]. Applied Physics Letters. 1996, 69 (14): 1997-1999. [20] Cho H, Yun C, Yoo S. Multilayer transparent electrode for organic light-emitting diodes: tuning its optical characteristics [J]. Optics Express. 2010, 18 (4): 3404-3414. [21] Lee S E, Lee J, Kim Y K, et al. Optimum thickness of epsilon negative tri-metal layer electrodes for maximizing OLED outcoupling efficiency [J]. Optics Express. 2017, 25 (25): 31006-31016. [22] Kwon S, Lee E, Kim K, et al. Efficient micro-cavity top emission OLED with optimized Mg: Ag ratio cathode [J]. Optics Express. 2017, 25 (24): 29906-29915. [23] Jin Y, Zou D, Wang K, et al. Optimization of period and thickness of the corrugated Ag cathode for efficient cross coupling between SPP and microcavity modes in top-emitting OLEDs [J]. Optical Materials Express. 2017, 7 (6): 2096-2101.

3. 毕业设计（论文）进程安排

2017.12.11-2018.1.1, 文献调研，完成开题报告 1.2-1.12,完成英文翻译 3.12-4.21, 深刻理解OLED发光机理,建立光学模型，学习和掌握FDTD模拟软件 4.22-5.5, 进行FDTD模拟、初步分析结果和中期检查 5.6-5.26, 进一步完善模拟结果,并分析全部数据 5.27-6.2, 论文撰写 6.3-6.6, 论文修改 6.7-6.10, 准备PPT，答辩