Graphdiyne Oxide Modified NiO x for Enhanced Charge Extraction in Inverted Planar MAPbI3 Perovskite Solar Cells
Jin Tang , Min Zhao , Xu Cai , Le Liu , Xiaofang Li , Tonggang Jiu
Chemical Research in Chinese Universities ›› 2021, Vol. 37 ›› Issue (6) : 1309 -1316.
Graphdiyne Oxide Modified NiO x for Enhanced Charge Extraction in Inverted Planar MAPbI3 Perovskite Solar Cells
The interface defects and nickel vacancies of the NiO x lead to interface charge recombination, which limits its application in perovskite solar cells. Here, graphdiyne oxide(GDYO) was added to NiO x as an inorganic hole transporting material. It is found that the average carrier lifetime declined from 29.2 ns to 5.4 ns and the recombination resistance increased significantly after the GDYO adding determined by the time-resolved photoluminescence and electrochemical impedance spectroscopy analysis. We further demonstrated that the GDYO adding to NiO x effectively improved the charge extraction, accelerated the charge transportation and suppressed the charge recombination. Consequently, the optimized NiO x(GDYO)-based cell showed superior performance with a higher fill factor(81.99%) and improved stability with respect to the reference device. This method provides a new method for property regulation of NiO x in inverted planar MAPbI3 perovskite solar cells.
Graphdiyne oxide / Nickel oxide / MAPbI3 perovskite solar cell / Charge extraction
| [1] |
|
| [2] |
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
|
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
|
| [24] |
|
| [25] |
|
| [26] |
|
| [27] |
|
| [28] |
|
| [29] |
|
| [30] |
|
| [31] |
|
| [32] |
|
| [33] |
|
| [34] |
|
| [35] |
|
| [36] |
|
| [37] |
|
| [38] |
|
| [39] |
|
| [40] |
|
| [41] |
|
| [42] |
|
| [43] |
|
/
| 〈 |
|
〉 |