Nitrogen-doped graphene quantum dots for 80% photoluminescence quantum yield for inorganic -CsPbI3 perovskite solar cells with efficiency beyond 16%
文献类型：期刊论文
| 作者 | Wang, Gang1; Bian, Hui2; Wang, Qian3; Yang, Siwei4; Yan, Changjie3; Wang, Haoran2; Liang, Lei2; Jin, Zhiwen3; Liu, Shengzhong (Frank)2,5 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2019-03-14 |
| 卷号 | 7期号:10页码:5740-5747 |
| ISSN号 | 2050-7488 |
| DOI | 10.1039/c8ta12519h |
| 通讯作者 | Jin, Zhiwen(jinzw@lzu.edu.cn) ; Wang, Gang(gangwang@nbu.edu.cn) ; Liu, Shengzhong (Frank)(szliu@dicp.ac.cn) |
| 英文摘要 | The insufficient utilization of sunlight has been a big obstacle preventing inorganic perovskite solar cells (PSCs) from achieving high power conversion efficiency (PCE). Herein, nitrogen-doped graphene quantum dots (N-GQDs) are developed to achieve a photoluminescence quantum yield (PLQY) as high as 80% to effectively convert harmful UV light into useful visible photons for improved solar cell efficiency. It is found that the N-GQD material is very stable against humidity and under high temperature stress. When it is deposited on the top of the -CsPbI3 PSCs, it serves as an energy-down-shift (EDS) layer to harvest light in the short wavelength range <350 nm that is normally detrimental to the perovskite. Compared with the reference cell without the N-GQDs, the optimized PSC exhibits an increased short circuit current density (J(SC)) of 19.15 mA cm(-2) from 18.67 mA cm(-2) and a PCE of 16.02% from 15.53%. Further examination of the EQE, PL and UV-vis absorption spectra confirms that the improvement in the device performance does indeed result from the N-GQDs. The present strategy paves the way for rational design to improve the performance of other novel photovoltaic devices. |
| WOS关键词 | ELECTRON-TRANSPORT LAYER ; CESIUM LEAD IODIDE ; ENERGY-DOWN-SHIFT ; THIN-FILM ; ALPHA-CSPBI3 PEROVSKITE ; STABILIZED EFFICIENCY ; HIGHLY EFFICIENT ; CARBON DOTS ; ENHANCEMENT ; CRYSTALLIZATION |
| 资助项目 | National Key Research and Development Program of China MOST[2017YFA0204800] ; Fundamental Research Funds for the Central Universities[2018CSLZ012] ; DNL Cooperation Fund CAS[DNL180311] ; basic scientific research business expenses of the central university ; Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University[LZUMMM2019001/LZUMMM2019005] ; National Natural Science Foundation of China[61704099/91733301/11704204/11804353] ; Natural Science Foundation of Shaanxi Province[2018JQ6072] ; 111 Project[B14041] |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| WOS记录号 | WOS:000463824300066 |
| 资助机构 | National Key Research and Development Program of China MOST ; National Key Research and Development Program of China MOST ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; DNL Cooperation Fund CAS ; DNL Cooperation Fund CAS ; basic scientific research business expenses of the central university ; basic scientific research business expenses of the central university ; Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University ; Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; 111 Project ; 111 Project ; National Key Research and Development Program of China MOST ; National Key Research and Development Program of China MOST ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; DNL Cooperation Fund CAS ; DNL Cooperation Fund CAS ; basic scientific research business expenses of the central university ; basic scientific research business expenses of the central university ; Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University ; Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; 111 Project ; 111 Project ; National Key Research and Development Program of China MOST ; National Key Research and Development Program of China MOST ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; DNL Cooperation Fund CAS ; DNL Cooperation Fund CAS ; basic scientific research business expenses of the central university ; basic scientific research business expenses of the central university ; Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University ; Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; 111 Project ; 111 Project ; National Key Research and Development Program of China MOST ; National Key Research and Development Program of China MOST ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; DNL Cooperation Fund CAS ; DNL Cooperation Fund CAS ; basic scientific research business expenses of the central university ; basic scientific research business expenses of the central university ; Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University ; Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; 111 Project ; 111 Project |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/165664]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Wang, Gang; Jin, Zhiwen; Liu, Shengzhong (Frank) |
| 作者单位 | 1.Ningbo Univ, Fac Sci, Dept Microelect Sci & Engn, Ningbo 315211, Zhejiang, Peoples R China 2.Shaanxi Normal Univ, Key Lab Appl Surface & Colloid Chem, Shaanxi Engn Lab Adv Energy Technol,Sch Mat Sci S, Minist Educ,Shaanxi Key Lab Adv Energy Devices, Xian 710119, Shaanxi, Peoples R China 3.Lanzhou Univ, Sch Phys Sci & Technol, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Gansu, Peoples R China 4.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China 5.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, iChEM, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Gang,Bian, Hui,Wang, Qian,et al. Nitrogen-doped graphene quantum dots for 80% photoluminescence quantum yield for inorganic -CsPbI3 perovskite solar cells with efficiency beyond 16%[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(10):5740-5747. |
| APA | Wang, Gang.,Bian, Hui.,Wang, Qian.,Yang, Siwei.,Yan, Changjie.,...&Liu, Shengzhong .(2019).Nitrogen-doped graphene quantum dots for 80% photoluminescence quantum yield for inorganic -CsPbI3 perovskite solar cells with efficiency beyond 16%.JOURNAL OF MATERIALS CHEMISTRY A,7(10),5740-5747. |
| MLA | Wang, Gang,et al."Nitrogen-doped graphene quantum dots for 80% photoluminescence quantum yield for inorganic -CsPbI3 perovskite solar cells with efficiency beyond 16%".JOURNAL OF MATERIALS CHEMISTRY A 7.10(2019):5740-5747. |
入库方式： OAI收割
来源：大连化学物理研究所
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