Journal
ORGANIC ELECTRONICS
Volume 78, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.orgel.2019.105575
Keywords
Inverted perovskite solar cell; PEDOT:PSS; Graphene quantum dots; Composite hole transporting layer; Charge collection efficiency
Funding
- Doctoral Scientific Research Foundation of Xinyang Normal University, Nanhu Scholars Program for Young Scholars of XYNU
- Key Project of Henan Prov-ince Colleges and Universities Plan [19A430022]
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The inverted p-i-n structure perovskite solar cells show great potential in wearable devices and flexible solar cells. Yet the commonly used PEDOT:PSS hole transporting layer still needs to be optimized in order to pursue superior performances. Here, we have demonstrated that PEDOT:PSS/GQDs composite film can be a potential alternative to replace the PEDOT:PSS. Under optimized conditions, average power conversion efficiencies are boosted from 12.77% for perovskite solar cells fabricated on PEDOT:PSS film to 15.24% for perovskite solar cells fabricated on PEDOT:PSS/GQDs film. A champion power conversion efficiency of 16.15% has also been demonstrated with the optimized PEDOT:PSS/GQDs composite film.
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