Facile synthesis of composition-tuned ZnO/Zn x Cd1-x Se nanowires for photovoltaic applications

Luo, Q.; Wu, Zhiming; He, Jialun; Cao, Yiyan; Bhutto, Waseem Ahmed; Wang, Weiping; Zheng, Xiang; Li, Shuping; Lin, Shengquan; Kong, Lijing; Kang, Junyong

doi:10.1515/nano.11671_2015.234

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For instance, Zhang et al fabricated a MAPbI 3 /MAPbI x Br 3 − x heterostructure with a type-II band structure and achieved HTL-free PSCs [33]. In essence, it is an ideal approach to directly reduce recombination losses through the design of a gradient band structure in the perovskite light absorption layer [34,35], which supports the carrier separation as fast as possible. However, to the best of our knowledge, it has not been reported so far about the fabrication of perovskite materials with a gradient band structure.…”

Section: Introductionmentioning

confidence: 99%

Gradient Engineered Light Absorption Layer for Enhanced Carrier Separation Efficiency in Perovskite Solar Cells

Zhu

Zhang

et al. 2020

Nanoscale Res Lett

Self Cite

View full text Add to dashboard Cite

Carrier transport behavior in the perovskite light absorption layer significantly impacts the performance of perovskite solar cells (PSCs). In this work, reduced carrier recombination losses were achieved by the design of a band structure in perovskite materials. An ultrathin (PbI 2 /PbBr 2) n film with a gradient thickness ratio was deposited as the lead halide precursor layer by a thermal evaporation method, and PSCs with a gradient band structure in the perovskite absorption layer were fabricated by a two-step method in ambient atmosphere. For comparison, PSCs with homogeneous perovskite materials of MAPbI 3 and MAPbI x Br 3 − x were fabricated as well. It is found that the gradient type-II band structure greatly reduces the carrier lifetime and enhances the carrier separation efficiency. As a result, the PSCs with a gradient band structure exhibit an average power conversion efficiency of 17.5%, which is 1-2% higher than that of traditional PSCs. This work provides a novel method for developing high-efficiency PSCs.

show abstract

Section: Introductionmentioning

confidence: 99%

Gradient Engineered Light Absorption Layer for Enhanced Carrier Separation Efficiency in Perovskite Solar Cells

Zhu

Zhang

et al. 2020

Nanoscale Res Lett

Self Cite

View full text Add to dashboard Cite

show abstract

“…For instance, Zhang et al fabricated MAPbI3/MAPbIxBr3-x heterostructure with a type-II band structure and achieved HTL-free PSCS [33]. In essence, it is an ideal approach to directly reduce recombination losses through the design of a gradient band structure in perovskite light absorption layer [34][35], which supports the carrier separation as fast as possible. However, to the best of our knowledge, it has not been reported so far about the fabrication of perovskite materials with a gradient band structure.…”

Section: Introductionmentioning

confidence: 99%

Gradient engineered light absorption layer for enhanced carrier separation efficiency in perovskite solar cells

Zhu

Zhang

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

Carrier transport behavior in perovskite light absorption layer significantly impacts the performance of perovskite solar cells (PSCs). In this work, reduced carrier recombination losses were achieved by the design of band structure in perovskite materials. An ultrathin (PbI2/PbBr2)n film with a gradient thickness ratio was deposited as the lead halide precursor layer by thermal evaporation method, and PSCs with a gradient band structure in perovskite absorption layer were fabricated by a two-step method in ambient atmosphere. For comparison, PSCs with homogeneous perovskite materials of MAPbI3 and MAPbIxBr3-x were fabricated as well. It is found that the gradient type-II band structure greatly reduces the carrier lifetime and enhances the carrier separation efficiency. As a result, the PSCs with a gradient band structure exhibit an average power conversion efficiency of 17.5%, which is 1-2% higher than that of traditional PSCs. This work provides a novel method for developing high-efficient PSCs.

show abstract

Facile synthesis of composition-tuned ZnO/Zn x Cd1-x Se nanowires for photovoltaic applications

Cited by 2 publications

References 0 publications

Gradient Engineered Light Absorption Layer for Enhanced Carrier Separation Efficiency in Perovskite Solar Cells

Gradient Engineered Light Absorption Layer for Enhanced Carrier Separation Efficiency in Perovskite Solar Cells

Gradient engineered light absorption layer for enhanced carrier separation efficiency in perovskite solar cells

Contact Info

Product

Resources

About