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yutaowen

铜虫 (正式写手)

应助: 0 (幼儿园)
金币: 10438.3
帖子: 475
在线: 37.7小时
虫号: 1658725
注册: 2012-03-02
专业: 凝聚态物性 II ：电子结构

[交流] 南京大学物理学院Solar Photon Conversion（太阳光子转换）研究组已有6人参与

1.招生类型
博士招生、硕博连读及直博招生
2.招收学校(单位)名称
南京大学物理学院、固体微结构物理国家重点实验室
3.学制以及何种专业
三年制博士、五年制硕博连读及直博，凝聚态物理
4.学校或单位地点
南京大学（南京市鼓楼区）
5.提供的补助待遇
按国家、学校最新政策规定发放，强化优秀奖励机制
6.导师(课题组)介绍
SPC: Solar Photon Conversion（太阳光子转换）
研究方向
（1）微纳结构材料及其新型光伏器件物理原理和应用
（2）太阳能光催化材料物理及器件
网页参考
http://www.nnlm.ac.cn/index.php/ ... 2010-09-01-05-03-43
http://ererc.nju.edu.cn/bencandy.php?fid=28&id=31
7.联系方式
于涛教授，025-83621190，yutao@nju.edu.cn

NJUSPC.jpg

友情提示：
目前执行的博士生“申请-考核”制招生方案中包括：
专业课程笔试：笔试主要考查学生的基础理论、基础知识。
考试科目可从《量子力学》、《统计物理》、《固体物理》、《光学原理》和《理论声学》中任选一门。
笔试成绩在总分中占有近50%的比重。
博士考生请务必认真复习、充分准备、取得高分。

南京大学物理学院Solar Photon Conversion（太阳光子转换）研究组-1

20150101.jpg

[ Last edited by yutaowen on 2014-12-31 at 08:16 ]

固体物理复习资料
量子力学复习资料

南京大学物理学院Solar Photon Conversion（太阳光子转换）研究组-2

固体物理复习资料.jpg

南京大学物理学院Solar Photon Conversion（太阳光子转换）研究组-3

量子力学复习资料.jpg

[ Last edited by yutaowen on 2015-1-17 at 16:08 ]

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yutaowen

铜虫 (正式写手)

应助: 0 (幼儿园)
金币: 10438.3
帖子: 475
在线: 37.7小时
虫号: 1658725
注册: 2012-03-02
专业: 凝聚态物性 II ：电子结构

博士研究生朱卫东等有关“Coarsening of one-step deposited organolead triiodide perovskite films via Ostwald ripening for high efficiency planar-heterojunction solar cells”的研究论文发表在Dalton Trans., 2016,45, 7856-7865
DOI: 10.1039/C6DT00900J
摘要：
Large organolead triiodide perovskite (OTP) grains with little intragranular defects are beneficial to minimize carrier recombination, hence boosting cell performance. However, OTP films deposited by the widely used one-step spin-coating route are usually composed of small grains, because the poor thermal stability of OTP inherently restricts the processing window (temperature, time) during the film preparation, thus limiting grain coarsening in the film. Herein, the remarkable grain coarsening via Ostwald ripening in one-step deposited OTP films has been successfully realized by a facile and effective post-synthesis high-temperature heating treatment assisted with spin-coated CH3NH3I. By systematically investigating the heating treatment parameters, a high-quality OTP film with an enlarged average grain size from ∼280 nm to 1.2 μm, greatly enhanced crystallinity, and excellent stoichiometry is achieved. Benefiting from such improved features, this modified film shows significantly reduced defect states corresponding to the decrease of recombination centers, as well as enhanced carrier transport and injection properties, which lead to the dramatically boosted efficiency from 14.54% to 16.88% for planar-heterojunction solar cells. More importantly, the improved OTP film quality provides the possibility of thickening the absorber layer of cells to realize more sufficient absorption without serious aggravation of charge recombination. By further optimizing the thickness of the coarsened OTP films, highly efficient cells with relatively excellent reproducibility and an optimal efficiency of 19.24% are achieved.