最近，光电工程学院生物医学光子学研究中心屈军乐教授和宋军教授团队在钙钛矿纳米晶合成及应用、钙钛矿太阳能电池制备及物理机制研究等方面取得一系列重要科研成果。
在钙钛矿纳米晶研究方面，该团队以CsPbX3纳米颗粒为研究对象，首先对其制备工艺进行优化，其次对所制备的CsPbX3纳米颗粒的形貌和发光颜色进行人为控制，并采用复合纳米颗粒的形式对其发光性能和环境稳定性进行优化，首次将该类纳米颗粒作为探针实现了超高空间分辨率STED生物医学光学成像。
在钙钛矿太阳能电池技术研究方面，该团队提出了仲丁醇辅助的一步法钙钛矿成膜工艺，成功制备了转换效率高达20.3%的高品质钙钛矿太阳能电池器件，并利用团队在光学显微成像领域的技术积累，成功实现了利用荧光显微成像对器件界面晶粒分布的精准监控，以及基于荧光寿命成像（FLIM）对载流子迁移情况的图像化分析，这些工作为在物理层面上深入研究光电器件的工作机制打开了新的窗口。
课题组在今年前五个月在该研究方向发表的高水平论文如下：
(1) Shuai Ye#, Wei Yan#, Mengjie Zhao, Xiao Peng, Jun Song*, and Junle Qu*, “Low saturation intensity, high photostability, and high resolution STED nanoscopy assisted by CsPbBr3 quantum dots,” Advanced Materials, online, https://doi.org/10.1002/adma.201800167 (JCR大类一区, IF=19.791, Top期刊)
(2) Xin Wang, Junjie He, Benqing Zhou, Youming Zhang, Jiatao Wu, Rui Hu, Liwei Liu, Jun Song,* and Junle Qu*, “Bandgap-tunable preparation of smooth and large two-dimensional antimonene,” Angewandte Chemie International Edition, online, https://doi.org/10.1002/anie.201804886 (JCR大类一区, IF=11.994, Top期刊)
(3) Junjie He#,Yuren Xiang#, Fan Zhang, Jiarong Lian, Rui Hu, Pengju Zeng, Jun Song*, and Junle Qu*, “Improvement of red light harvesting ability and open circuit voltage of Cu:NiOx based p-i-n planar perovskite solar cells boosted by cysteine enhanced interface contact,” Nano Energy, Vol. 45, 471-479, 2018. (JCR大类一区, IF=12.343, Top期刊)
(4) Fan Zhang, Jun Song,* Rui Hu, Yuren Xiang, Junjie He, Yuying Hao, Jiarong Lian, Bin Zhang,* Pengju Zeng, and Junle Qu*, “Interfacial passivation of the p-doped hole-transporting layer using general insulating polymers for high-performance inverted perovskite solar cells,” Small, Vol. 14, Issue 19, 1704007 (1-10), 2018. (JCR大类一区, IF=8.643, Top期刊)
(5) Yu Chen, Minghuai Yu, Shuai Ye, Jun Song*, and Junle Qu*, “All-inorganic CsPbBr3 perovskite quantum dots embedded in dual-mesoporous silica with moisture resistance for two-photon-pumped plasmonic nanolasers,”Nanoscale, Vol. 10, Issue 14, 6704-6711, 2018. (JCR大类一区, IF=7.367, Top期刊)
(6) Shuai Ye, Mengjie Zhao, Jun Song*, and Junle Qu*, “Controllable emission bands and shape of high quality CsPbX3 perovskite nanocrystals prepared in nonpolar octane,” Nano Research, online,https://link.springer.com/article/10.1007/s12274-018-2046-4 (JCR大类一区, IF=7.354, Top期刊)
(7) Yuren Xiang, Fan Zhang, Junjie He, Jiarong Lian, Pengju Zeng, Jun Song *, and Junle Qu*, “Light-current-induced acceleration of degradation of Methylammonium lead iodide perovskite solar cells,” Journal of Power Sources, Vol. 384, 303-311, 2018. (JCR大类一区, IF=6.395, Top期刊)
(8) Shuai Ye , Mengjie Zhao, Minghuai Yu, Ming Zhu, Wei Yan, Jun Song*, and Junle Qu*, “Mechanistic investigation of upconversion photoluminescence in all-inorganic perovskite CsPbBrI2 nanocrystals,” Journal of Physical Chemistry C, Vol. 122, Issue 5, 3152–3156, 2018. (JCR大类二区, IF=4.536, Top期刊)
(9) Shuai Ye, Minghuai Yu, Mengjie Zhao, Jun Song*, Junle Qu*, “Low temperature synthesis of high-quality all-inorganic cesium lead halide perovskite nanocrystals in open air and their upconversion luminescence,” Journal of Alloys and Compounds, Vol. 730, 62–70, 2018. (IF= 3.014 , JCR小类1区, Top期刊)
该团队的研究得到了国家基础研究发展计划（973）课题 (2015CB352005)、国家自然科学基金( 61605124，61525503，61620106016，61505118，61775145，31771584和81727804)、广东省自然科学基金创新团队(2014A030312008)、广东省普通高校国际暨港澳台合作创新平台 (2015KGJHZ002)以及深圳市基础研究计划项目(JCYJ20170412110212234, JCYJ20150930104948169, JCYJ20160328144746940, JCYJ20160308093035903和GJHZ20160226202139185)等的支持。
