Influence of various ion chelators on mechanical, transport and microstructure properties of cement-based materials

Zhang, Chenchen; Ye, Jingyi; Liu, Cong; Guan, Xinchun; Li, Jinglu; Chen, Xin; Yuan, Jian

doi:10.1016/j.cscm.2024.e03709

Case Studies in Construction Materials

2024

DOI: 10.1016/j.cscm.2024.e03709

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Influence of various ion chelators on mechanical, transport and microstructure properties of cement-based materials

Chenchen Zhang,

Jingyi Ye,

Cong Liu

et al.

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Phosphates Modulated NiO_x HTL toward a Lower V_oc Loss in Wide Bandgap Perovskite Solar Cells

Zhao,

Liu,

Kong

et al. 2024

Adv Funct Materials

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The combination of p‐type NiOx and self‐assembled monolayers (SAMs) has recently emerged as an optimal structure for hole transport layer (HTL) structure in wide‐bandgap perovskite solar cells (WBG PSCs). However, the unique requirements for NiOx in this cascade HTL system differ significantly from those of neat NiOx. Specifically, the tendency of NiOx to agglomerate can lead to poor film morphology and inadequate interfacial contact with SAMs, resulting in significant open‐circuit voltage (Voc) loss in PSCs. Herein, these issues are addressed by incorporating sodium hexametaphosphate (SHMP) into NiOx ink. This approach enhances the dispersibility of NiOx nanoparticles, improving the morphology and conductivity of the NiOx films through interactions between the P = O and P‐O groups and Ni ions. Additionally, SHMP promotes better contact between the NiOx and Me‐4PACz interface by increasing the number of hydroxyl groups on the uniform surface of NiOx films. Consequently, a high power conversion efficiency (PCE) of 21.02% is achieved for WBG (1.79 eV) PSCs with the smallest relative Voc loss of 24.69%. The encapsulated devices exhibit excellent stability under high humidity and elevated temperatures. Furthermore, when combined with Sn‐Pb narrow‐bandgap perovskite, a PCE of 27.66% is attained for the 2‐terminal tandem solar cells (TSCs).

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Phosphates Modulated NiO_x HTL toward a Lower V_oc Loss in Wide Bandgap Perovskite Solar Cells

Zhao,

Liu,

Kong

et al. 2024

Adv Funct Materials

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Influence of various ion chelators on mechanical, transport and microstructure properties of cement-based materials

Cited by 1 publication

References 34 publications

Phosphates Modulated NiO_x HTL toward a Lower V_oc Loss in Wide Bandgap Perovskite Solar Cells

Phosphates Modulated NiO_x HTL toward a Lower V_oc Loss in Wide Bandgap Perovskite Solar Cells

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Influence of various ion chelators on mechanical, transport and microstructure properties of cement-based materials

Cited by 1 publication

References 34 publications

Phosphates Modulated NiOx HTL toward a Lower Voc Loss in Wide Bandgap Perovskite Solar Cells

Phosphates Modulated NiOx HTL toward a Lower Voc Loss in Wide Bandgap Perovskite Solar Cells

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Phosphates Modulated NiO_x HTL toward a Lower V_oc Loss in Wide Bandgap Perovskite Solar Cells

Phosphates Modulated NiO_x HTL toward a Lower V_oc Loss in Wide Bandgap Perovskite Solar Cells