全文总字数：3844字
1. 毕业设计（论文）的内容和要求
本论文以非铅钙钛矿发光二极管为研究背景，通过引入添加剂，调控晶体生长，提高器件效率，并且研究不同添加剂对器件性能影响。
本论文课题名称为基于(PEAI)x(FAI)y(SnI2)z的锡基钙钛矿发光器件，根据文献报道，与铅同主族的锡可以替代钙钛矿材料中的铅，形成对环境友好的锡基卤化钙钛矿，但相应器件的发光效率和稳定性尚有待提高。
本课题拟通过调控大小尺寸阳离子的比例，制备准二维锡基钙钛矿，进一步引入添加剂，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，制备出高效的非铅钙钛矿器件。
2. 实验内容和要求
实验内容及要求包括以下几个方面：（1）调节大小阳离子，制备高效准二维钙钛矿基础器件。
（2）含有和不含添加剂锡基钙钛矿薄膜与器件的制备。
（3）通过SEM，AFM，荧光光谱仪等设备对薄膜进行表征，通过EQE测试系统对器件性能进行表征。
3. 参考文献
1. Wang, Y. et al. Tin-Based Multiple Quantum Well Perovskites for Light-Emitting Diodes with Improved Stability. J. Phys. Chem. Lett. 10, 453 (2019).2. Yi, C. et al. Intermediate-phase-assisted low-temperature formation of γ-CsPbI3 films for high-efficiency deep-red light-emitting devices. Nat. Commun. 11, 4736 (2020).3. Cheng, L. et al. Multiple-Quantum-Well Perovskites for High-Performance Light-Emitting Diodes. Adv. Mater. 32, 1904163 (2020).4. Cao, Y. et al. Perovskite light-emitting diodes based on spontaneously formed submicrometre-scale structures. Nature 562, 249253 (2018).5. Lin, K. et al. Perovskite light-emitting diodes with external quantum efficiency exceeding 20 per cent. Nature 562, 245248 (2018).6. Chiba, T. et al. Anion-exchange red perovskite quantum dots with ammonium iodine salts for highly efficient light-emitting devices. Nat. Photon. 12, 681687 (2018).7. 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).8. 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, 2990129906 (2017).9. Tang, X. et al. Local observation of phase segregation in mixed-halide perovskite. Nano Lett. 18, 21722178 (2018).10. 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, 59655973 (2017).11. 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, 648654 (2018).12. Leijtens, T. et al. Towards enabling stable lead halide perovskite solar cells; interplay between structural, environmental, and thermal stability. J. Mater. Chem. A 5, 1148311500 (2017).13. 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).14. Chen, P. et al. Charge-transfer versus energy- transfer in quasi-2D perovskite light-emitting diodes. Nano Energy 50, 615622 (2018).15. 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, 881886 (2018).16. Kumawat, N. K. et al. Band gap tuning of CH3NH3Pb(Br1xClx)3 hybridperovskite for blue electroluminescence. ACS Appl. Mater. Interfaces 7, 1311913124 (2015).17. Aditya Sadhanala et al. Blue-Green Color Tunable Solution Processable Organolead ChlorideBromide Mixed Halide Perovskites for Optoelectronic Applications. Nano Lett. 15, 60956101 (2015)
4. 毕业设计（论文）计划
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
以上是毕业论文任务书，课题毕业论文、开题报告、外文翻译、程序设计、图纸设计等资料可联系客服协助查找。
