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A short overview of the lead iodide residue impact and regulation strategies in perovskite solar cells
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作者 eng liang lim Zhanhua Wei 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2024年第3期504-510,I0012,共8页
Lead iodide(PbI2) is a vital raw material for preparing perovskite solar cells(PSCs),and it not only takes part in forming the light absorption layer but also remains in the grain boundary as a passivator.In other wor... Lead iodide(PbI2) is a vital raw material for preparing perovskite solar cells(PSCs),and it not only takes part in forming the light absorption layer but also remains in the grain boundary as a passivator.In other words,the PbI2 content in the precursor and as formed film will affect the efficiency and stability of the PSCs.With moderate residual PbI2,it passivates the bulk/surface defects of perovskite,reduces the interfacial recombination,promotes the perovskite stability,minimizes the device hysteresis,and so on.Deficient PbI2 residue will reduce the interfacial passivation effect and device performance.In addition to facilitating the non-radiative recombination,over PbI2 residue can also lead to electronic insulation in the grain boundary and deteriorate the device performance.However,the impact and regulation of PbI2 residue on the device performance and stability is still not fully understood.Herein,a comprehensive and detailed review is presented by discussing the PbI2 residue impact and its regulation strategies(i.e., elimination,facilitation and conversion of the residue PbI2) to manipulate the PbI2 content,distribution and forms.Finally,we also show future outlooks in this field,with an aim to help further the progression of high-efficiency and stable PSCs. 展开更多
关键词 Lead iodide RESIDUE REGULATION Perovskite solar cells Efficiency Stability
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A Mini Review: Can Graphene Be a Novel Material for Perovskite Solar Cell Applications? 被引量:5
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作者 eng liang lim Chi Chin Yap +2 位作者 Mohammad Hafizuddin Hj Jumali Mohd Asri Mat Teridi Chin Hoong Teh 《Nano-Micro Letters》 SCIE EI CAS 2018年第2期92-103,共12页
Perovskite solar cells(PSCs) have raised research interest in scientific community because their power conversion efficiency is comparable to that of traditional commercial solar cells(i.e., amorphous Si, GaAs,and CdT... Perovskite solar cells(PSCs) have raised research interest in scientific community because their power conversion efficiency is comparable to that of traditional commercial solar cells(i.e., amorphous Si, GaAs,and CdTe). Apart from that, PSCs are lightweight, are flexible, and have low production costs. Recently, graphene has been used as a novel material for PSC applications due to its excellent optical, electrical, and mechanical properties. The hydrophobic nature of graphene surface can provide protection against air moisture from the surrounding medium, which can improve the lifetime of devices. Herein, we review recent developments in the use of graphene for PSC applications as a conductive electrode,carrier transporting material, and stabilizer material. By exploring the application of graphene in PSCs, a new class of strategies can be developed to improve the device performance and stability before it can be commercialized in the photovoltaic market in the near future. 展开更多
关键词 Perovskite solar cells GRAPHENE Conductive electrode Carrier transporting material Stabilizer material Performance and stability
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Can two-dimensional graphdiyne-based materials be novel materials for perovskite solar cell applications?
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作者 eng liang lim Zhanhua Wei 《Materials Futures》 2023年第2期142-151,共10页
Two-dimensional(2D)graphdiyne(GDY)-based materials have attracted attention in the solar cell research community owing to their unique physicochemical properties and hydrophobic nature which can serve as moisture resi... Two-dimensional(2D)graphdiyne(GDY)-based materials have attracted attention in the solar cell research community owing to their unique physicochemical properties and hydrophobic nature which can serve as moisture resistance from the surrounding medium.Benefiting from these,the performance and stability ofperovskite solar cells(PSCs)can be greatly improved via the addition of 2D GDY-based materials.This mini-review summarizes the recent development of 2D GDY-based materials for PSC application.The roles of 2D GDY-based materials,such as hole transporting material,electron transporting material,dopant material in perovskite film and interfacial layer,are discussed in detail.Moreover,we provide future perspectives in this field,aiming to help further progress efficient and stable 2D GDY-based materials in PSCs. 展开更多
关键词 two-dimensional material graphdiyne perovskite solar cells power conversion efficiency stability
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