Alloy-induced phase transition and enhanced photovoltaic performance: the case of Cs3Bi2I9−xBrx perovskite solar cells

  title={Alloy-induced phase transition and enhanced photovoltaic performance: the case of Cs3Bi2I9−xBrx perovskite solar cells},
  author={Bin‐Bin Yu and Min Liao and Jingxiu Yang and Wei Chen and Yudong Zhu and Xusheng Zhang and Tao Duan and Weitang Yao and Suhuai Wei and Zhubing He},
  journal={Journal of Materials Chemistry A},
Phase transition driven bandgap aberration of Cs3Bi2I9−xBrx perovskites by varying x was discovered for the first time. 

Enhanced photoconversion efficiency in cesium-antimony-halide perovskite derivatives by tuning crystallographic dimensionality

Highly efficient and stable FASnI3 perovskite solar cells with effective interface modulation by PEABr treated low-dimensional perovskite layer.

This work definitely deepens the understanding to the suppression effect of PEABr on the oxidation of Sn2+ and paves a new way to fabricate promising tin halide PSCs by facile interface engineering.

Enhanced visible light absorption in layered Cs3Bi2Br9 through mixed-valence Sn(ii)/Sn(iv) doping

Lead-free halides with perovskite-related structures, such as the vacancy-ordered perovskite Cs3Bi2Br9, are of interest for photovoltaic and optoelectronic applications. We find that addition of

0D/2D Mixed Dimensional Lead-Free Caesium Bismuth Iodide Perovskite for Solar Cell Application

Bismuth-based perovskites are potentially a promising alternative for lead-free perovskites. During bond formation, however, trivalent ions on Cs3Bi2I9 with CsI/BiI3 ratio of 1.5/1 form 0D-neutral

Alkali Metal Ions Regulated Lead-Free, All-Inorganic Double Perovskites for HTM-Free, Carbon-Based Solar Cells.

A less-pinhole perovskite film is obtained by precisely controlling doping dosage and element species, significantly reducing the defects, and this device displays superior tolerance under high-temperature and air conditions without encapsulation, providing new opportunities to promote the future development of lead-free Cs2AgBiBr6 perovkites in photoelectric field.

Oriented Crystallization of Mixed‐Cation Tin Halides for Highly Efficient and Stable Lead‐Free Perovskite Solar Cells

As the most promising lead‐free branch, tin halide perovskites suffer from the severe oxidation from Sn2+ to Sn4+, which results in the unsatisfactory conversion efficiency far from what they

High-throughput screening of perovskite inspired bismuth halide materials: toward lead-free photovoltaic cells and light-emitting diodes

Toxicity is the main bottleneck for the commercialization of Pb halide perovskites. Bi has been considered a promising metal cation to replace Pb because of its comparable electronic structures with

Enhancement of the photovoltaic properties of Ag2BiI5 by Cu doping

Cu-doped Ag2BiI5 (Cu:SBI) powders with 0–10 mol% doping concentrations were synthesized by a solid-state method in an evacuated glass tube. While Cu doping did not appreciably modify the

Perovskite-Inspired Materials for Photovoltaics -- From Design to Devices

Lead-halide perovskites have demonstrated astonishing increases in power conversion efficiency in photovoltaics over the last decade. The most efficient perovskite devices now outperform



Lead-free solid-state organic–inorganic halide perovskite solar cells

Perovskite solar cells containing tin rather than lead, which is usually employed, are reported. These cells have a power conversion efficiency of 5.7% and retain 80% of their performance over a

Bismuth Based Hybrid Perovskites A3Bi2 I9 (A: Methylammonium or Cesium) for Solar Cell Application.

Bismuth perovskites have very promising properties for further development in solar cells and a power conversion efficiency of over 1% is obtained.

Effect of Electron Transporting Layer on Bismuth-Based Lead-Free Perovskite (CH3NH3)3 Bi2I9 for Photovoltaic Applications.

The optical measurements showed a strong absorption band around 500 nm, and the devices made on anatase TiO2 mesoporous layer showed good performance with current density over 0.8 mA cm(-2), while the devices on brookiteTiO2 layer and planar (free of porous layer) was inefficient.

Vapor Annealing Controlled Crystal Growth and Photovoltaic Performance of Bismuth Triiodide Embedded in Mesostructured Configurations.

These devices showed stable performance even after 30 days of exposure to 50% relative humidity, and after 100 °C heat stress and 20 min light soaking test, which is, so far, the best PCE reported for BiI3 photovoltaic device employing organic hole-transporting material (HTM).

(C6H13N)2BiI5: A One-Dimensional Lead-Free Perovskite-Derivative Photoconductive Light Absorber.

A new one-dimensional (1D) zigzag chainlike light-absorbing hybrid material of (C6H13N)2BiI5, in which the corner-sharing octahedral bismuth halide chains are surrounded by organic cations of tetramethylpiperidinium, which displays obvious photoresponse in the visible-light range.

Performance Enhancement of Lead-Free Tin-Based Perovskite Solar Cells with Reducing Atmosphere-Assisted Dispersible Additive

Sn-based halide perovskite materials have attracted tremendous attention and have been employed successfully in solar cells. However, their high conductivities resulting from the unstable divalent Sn

Long Electron-Hole Diffusion Length in High-Quality Lead-Free Double Perovskite Films.

The first double perovskite (Cs2 AgBiBr6 ) solar cells using the planar structure are demonstrated, and the resulting solar cells based on planar TiO2 exhibit an average power conversion efficiency over 1%.

All-Inorganic CsPbI2Br Perovskite Solar Cells with High Efficiency Exceeding 13.

An all-inorganic perovskite solar cell with novel structure (FTO/NiO x/CsPbI2Br/ZnO@C60/Ag) was utilized as the electron-transporting layers that demonstrated high carrier extraction efficiency and low leakage loss and largely outperformed the organic-species-containing PSCs.