Effects of incorporating PbS quantum dots in perovskite solar cells based on CH3NH3PbI3

Yang, Ying; Wang, Wenyong

doi:10.1016/j.jpowsour.2015.05.081

Cited by 60 publications

(40 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Since the DPPS has more phenyl groups at the side of Si atoms compared with PMPS and PPS, molecular interactions created by the phenyl groups would affect the nucleation and crystal growth. Introduction of quantum dots such as PbS [57] or SnS [58] could also control the energy band structure. Further studies are needed for the growth of the perovskite phase and the control of the energy bands.…”

Section: Resultsmentioning

confidence: 99%

Fabrication and Characterization of CH₃NH₃PbI₃ Perovskite Solar Cells Added with Polysilanes

Oku

Nomura

Suzuki

et al. 2018

International Journal of Photoenergy

View full text Add to dashboard Cite

Effects of polysilane additions on CH3NH3PbI3 perovskite solar cells were investigated. Photovoltaic cells were fabricated by a spin-coating method using perovskite precursor solutions with polymethyl phenylsilane, polyphenylsilane, or decaphenyl cyclopentasilane (DPPS), and the microstructures were examined by X-ray diffraction and optical microscopy. Open-circuit voltages were increased by introducing these polysilanes, and short-circuit current density was increased by the DPPS addition, which resulted in the improvement of the photoconversion efficiencies to 10.46%. The incident photon-to-current conversion efficiencies were also increased in the range of 400~750 nm. Microstructure analysis indicated the formation of a dense interfacial structure by grain growth and increase of surface coverage of the perovskite layer with DPPS, and the formation of PbI2 was suppressed, leading to the improvement of photovoltaic properties.

show abstract

Section: Resultsmentioning

confidence: 99%

Fabrication and Characterization of CH₃NH₃PbI₃ Perovskite Solar Cells Added with Polysilanes

Oku

Nomura

Suzuki

et al. 2018

International Journal of Photoenergy

View full text Add to dashboard Cite

show abstract

“…Exploiting lower bandgap perovskites still lags behind, and the most successful candidate to date is based on a Sn/Pb binary perovskite which is notorious for instability issues . Employing hybrid perovskite–QDs can adequately address this issue, as it renders possibilities to broaden the light response range and ultimately realize widened spectrum absorption by employing narrower bandgap QDs . There are a variety of QD candidates that have strong response in the near‐infrared spectrum region, including PbS, Ag 2 S, and SnS .…”

Section: Introductionmentioning

confidence: 99%

Hybrid PbS Quantum‐Dot‐in‐Perovskite for High‐Efficiency Perovskite Solar Cell

Han

Luo

Yin

et al. 2018

Small

125

120

View full text Add to dashboard Cite

In this study, a facile and effective approach to synthesize high-quality perovskite-quantum dots (QDs) hybrid film is demonstrated, which dramatically improves the photovoltaic performance of a perovskite solar cell (PSC). Adding PbS QDs into CH NH PbI (MAPbI ) precursor to form a QD-in-perovskite structure is found to be beneficial for the crystallization of perovskite, revealed by enlarged grain size, reduced fragmentized grains, enhanced characteristic peak intensity, and large percentage of (220) plane in X-ray diffraction patterns. The hybrid film also shows higher carrier mobility, as evidenced by Hall Effect measurement. By taking all these advantages, the PSC based on MAPbI -PbS hybrid film leads to an improvement in power conversion efficiency by 14% compared to that based on pure perovskite, primarily ascribed to higher current density and fill factor (FF). Ultimately, an efficiency reaching up to 18.6% and a FF of over ≈0.77 are achieved based on the PSC with hybrid film. Such a simple hybridizing technique opens up a promising method to improve the performance of PSCs, and has strong potential to be applied to prepare other hybrid composite materials.

show abstract

“…PbS QDs offer several advantages, including solution processability, size‐tunable spectral sensitivity, and flexible substrate compatibility . Therefore, the MAPbI 3 /PbS QD bilayer structure has been utilized as a light‐sensitizer to fabricate Vis–NIR photodetectors and photovoltaic cells . The bilayer structure increases the complexity of the device structure but also need to prevents impairment of the perovskite layer during film processing of the PbS QD layer.…”

Section: Introductionmentioning

confidence: 99%

Efficient Visible–Near‐Infrared Hybrid Perovskite:PbS Quantum Dot Photodetectors Fabricated Using an Antisolvent Additive Solution Process

Zhao

Huang

Qin

et al. 2018

Advanced Optical Materials

View full text Add to dashboard Cite

Organometal lead‐halide perovskites demonstrate excellent photovoltaic performance in the visible (Vis) region. However, their lack of response in the near‐infrared (NIR) region limits their applications in broadband photodetectors. Herein, an efficient Vis–NIR perovskite photodetector (PePD) created by doping PbS quantum dots (QDs) in perovskite precursors via an antisolvent additive solution process is reported. By changing the volume of the antisolvent additive, perovskite hybrid films of MAPbI3:PbS QDs with good crystallinity and uniform grain size are created. The resultant Vis–NIR PePD exhibits a specific detectivity of 1012 and 1011 Jones in the visible and NIR regions, respectively. These results suggest that the antisolvent additive solution process can disperse PbS QDs between perovskite grain boundaries and control the perovskite crystallinity and morphology, providing a simple method to broaden the spectral response range of PePDs.

show abstract

Effects of incorporating PbS quantum dots in perovskite solar cells based on CH3NH3PbI3

Cited by 60 publications

References 48 publications

Fabrication and Characterization of CH₃NH₃PbI₃ Perovskite Solar Cells Added with Polysilanes

Fabrication and Characterization of CH₃NH₃PbI₃ Perovskite Solar Cells Added with Polysilanes

Hybrid PbS Quantum‐Dot‐in‐Perovskite for High‐Efficiency Perovskite Solar Cell

Efficient Visible–Near‐Infrared Hybrid Perovskite:PbS Quantum Dot Photodetectors Fabricated Using an Antisolvent Additive Solution Process

Contact Info

Product

Resources

About

Effects of incorporating PbS quantum dots in perovskite solar cells based on CH3NH3PbI3

Cited by 60 publications

References 48 publications

Fabrication and Characterization of CH3NH3PbI3 Perovskite Solar Cells Added with Polysilanes

Fabrication and Characterization of CH3NH3PbI3 Perovskite Solar Cells Added with Polysilanes

Hybrid PbS Quantum‐Dot‐in‐Perovskite for High‐Efficiency Perovskite Solar Cell

Efficient Visible–Near‐Infrared Hybrid Perovskite:PbS Quantum Dot Photodetectors Fabricated Using an Antisolvent Additive Solution Process

Contact Info

Product

Resources

About

Fabrication and Characterization of CH₃NH₃PbI₃ Perovskite Solar Cells Added with Polysilanes

Fabrication and Characterization of CH₃NH₃PbI₃ Perovskite Solar Cells Added with Polysilanes