1. 毕业设计（论文）的内容和要求

本论文以钙钛矿蓝光发光二极管为研究背景，通过引入胺类添加剂，优化氯溴掺杂的钙钛矿蓝光器件性能，同时研究不同类添加剂对氯溴掺杂蓝光器件相分离现象的影响。

本论文课题名称为”胺类添加剂对氯溴掺杂蓝光钙钛矿发光器件性能影响的研究”，根据文献报道，胺类添加剂对钝化薄膜缺陷，提高器件性能具有较好作用，本课题拟引入苯甲胺等胺类添加剂，通过优化比例，浓度，退火温度及转速等条件，并通过eqe测试系统测试器件性能，制备出高效的钙钛矿蓝光器件。

同时改变胺添加剂种类，分别制备最优器件，分析不同胺添加剂对氯溴掺杂钙钛矿蓝光器件相分离现象的影响。

2. 参考文献

1. Cao, Y. et al. Perovskite light-emitting diodes based on spontaneously formed submicrometre-scale structures. Nature 562, 249#8211;253 (2018). 2. Lin, K. et al. Perovskite light-emitting diodes with external quantum efficiency exceeding 20 per cent. Nature 562, 245#8211;248 (2018). 3. Chiba, T. et al. Anion-exchange red perovskite quantum dots with ammonium iodine salts for highly efficient light-emitting devices. Nat. Photon. 12, 681#8211;687 (2018). 4. Chen, Z. et al. High-performance color-tunable perovskite light emitting devices through structural modulation from bulk to layered film. Adv. Mater.29, 1603157 (2017). 5. Wang, Q., Ren, J., Peng, X.-F., Ji, X.-X. Yang, X.-H. Efficient sky-blue perovskite light-emitting devices based on ethylammonium bromide induced layered perovskites. ACS Appl. Mater. Interfaces 9, 29901#8211;29906 (2017). 6. Tang, X. et al. Local observation of phase segregation in mixed-halide perovskite. Nano Lett. 18, 2172#8211;2178 (2018). 7. Vashishtha, P. Halpert, J. E. Field-driven ion migration and color instability in red-emitting mixed halide perovskite nanocrystal light-emitting diodes. Chem. Mater. 29, 5965#8211;5973 (2017). 8. Saidaminov, M. I. et al. Suppression of atomic vacancies via incorporation of isovalent small ions to increase the stability of halide perovskite solar cells in ambient air. Nat. Energy 3, 648#8211;654 (2018). 9. Leijtens, T. et al. Towards enabling stable lead halide perovskite solar cells; interplay between structural, environmental, and thermal stability. J. Mater. Chem. A 5, 11483#8211;11500 (2017). 10. Shang, Y., Li, G., Liu, W. Ning, Z. Quasi-2D inorganic CsPbBr3 perovskite for efficient and stable light-emitting diodes. Adv. Funct. Mater. 28, 1801193 (2018). 11. Chen, P. et al. Charge-transfer versus energy- transfer in quasi-2D perovskite light-emitting diodes. Nano Energy 50, 615#8211;622 (2018). 12. Chang, J. et al. Enhanced performance of red perovskite light-emitting diodes through the dimensional tailoring of perovskite multiple quantum wells. J. Phys. Chem. Lett. 9, 881#8211;886 (2018). 13. Kumawat, N. K. et al. Band gap tuning of CH3NH3Pb(Br1#8211;xClx)3 hybridperovskite for blue electroluminescence. ACS Appl. Mater. Interfaces 7, 13119#8211;13124 (2015). 14.Aditya Sadhanala et al. Blue-Green Color Tunable Solution Processable Organolead Chloride#8722;Bromide Mixed Halide Perovskites for Optoelectronic Applications Nano Lett. 15, 6095#8722;6101 (2015)

3. 毕业设计（论文）进程安排

毕业设计进程安排 第1-4周：阅读文献，了解本组前期工作，并深入了解本领域方法并分析 第5-9周：制备并表征钙钛矿薄膜性能 第9-15周：优化器件结构与条件。

第16-18周：整理论文，准备答辩