Phosphorus doped carbon dots additive improves the performance of perovskite solar cells via defect passivation in MAPbI3 films

被引:7
作者
Kurukavak, Cisem Kirbiyik [1 ]
Yilmaz, Tugbahan [2 ]
Buyukbekar, Alihan [1 ]
Tok, Mutahire [1 ]
Kus, Mahmut [1 ]
机构
[1] Konya Tech Univ, Dept Chem Engn, TR-42075 Konya, Turkiye
[2] Konya Tech Univ, Dept Elect & Energy, TR-42075 Konya, Turkiye
来源
MATERIALS TODAY COMMUNICATIONS | 2023年 / 35卷
关键词
Perovskite solar cells; Defect passivation; P-CQDs; Additive engineering; Crystallinity; HIGHLY EFFICIENT; QUANTUM DOTS;
D O I
10.1016/j.mtcomm.2023.105668
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Perovskites have been widely investigated as absorber layer in photovoltaic technology owing to their excellent properties. For further enhancement of the power conversion efficiencies (PCEs) of MAPbI3 perovskite solar cells, here, we successfully synthesized phosphorus doped carbon dots (P-CQDs) by solvothermal method and inves-tigated their effect as an additive on the perovskite film properties and photovoltaic performance. The results showed that electron-rich phosphorus can act as an excellent core unit in perovskite absorber layer to passivate defects at the surface for improved the crystallization and charge transport properties. Thanks to passivation effect of P-CQDs on perovskite films, as well as the suitable energy band gap values and optical properties of MAPbI3 layer, the device prepared with the addition of 5 vol% of P-CQDs achieved a champion PCE of 13.12% with a high fill factor (FF) of 73.44%, higher than the PCE of 10.71% with a FF of 58.81% for control device.
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页数:8
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