Recent progress, fabrication challenges and stability issues of lead-free tin-based perovskite thin films in the field of photovoltaics

Mahajan, Prerna; Datt, Ram; Tsoi, Wing Chung; Gupta, Vinay; Tomar, Amit; Arya, Sandeep

doi:10.1016/j.ccr.2020.213633

Cited by 68 publications

(50 citation statements)

References 118 publications

(123 reference statements)

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“…Moreover, poor stability and hysteresis effect hinder progress towards commercialisation [ 9 , 10 , 11 , 12 ]. The best way to achieve commercialisation of thin-film low-cost perovskite solar cells is by considering all inorganic lead-free perovskites [ 13 , 14 , 15 ]. Miyasaka et al [ 16 ] reported that the SQ efficiency of lead-free narrow bandgap solar absorbers can be higher (about 35%) than that of lead-based solar absorbers.…”

Section: Introductionmentioning

confidence: 99%

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

Masawa

Zhao

et al. 2022

Materials

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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 charged compounds with higher bandgap (>2.0 eV) and poor absorption capacity. Mixed 0/2-dimensional structures are potentially suitable substitutes due to their low bandgap. So far, the reported CsI/BiI3 ratios for 0D/2D structures are 1:1, 1:2 and 1:3. Herein, a new ratio of 1/1.5 is reported. Caesium bismuth iodide at a ratio of CsI/BiI3 of 1/1.5 was synthesised using a one-step processing method with/without solvent vapour annealing. During solvent annealing, a 1/4 (v/v) mixture of DMF/methanol was used as a solvent. The crystal structure formed at a ratio of 1/1.5 is more similar to 1.5/1 than to 1/3. The XRD pattern revealed additional characteristics peaks at 009, 012, 209 and 300, indicating the growth of another phase. The formed heterogeneous mixed 0D/2D structure has an extended light absorption capacity greater than 720 nm. Solvent vapour annealing improved film morphology by enhancing grain size and packing density. When cells with and without solvent vapour annealing are compared, the power conversion efficiency of caesium bismuth iodide increases from 0.26% without solvent annealing to 0.98% with solvent vapour annealing. This study establishes a new route for future research on crystal configuration, nomenclature, film and morphology, quality tailoring and applications toward the goal of lead-free perovskite solar cells.

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Section: Introductionmentioning

confidence: 99%

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

Masawa

Zhao

et al. 2022

Materials

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“…Indeed, the limits of p-DSCs are evidenced through the recognition that p-DSCs generally display lower values of fill factor (FF) [37][38][39] in comparison to n-DSCs 40,41 and other junction-based photovoltaic devices. [42][43][44][45] One should note that a relatively low FF is not inherently related to pDSCs (or NiO), but its value is rather ruled by the built-in potential of the device, i.e. by the redox potential of the mediator and the structure of the VB in the semiconductor.…”

Section: Introductionmentioning

confidence: 99%

NiO/ZrO₂ nanocomposites as photocathodes of tandem DSCs with higher photoconversion efficiency with respect to parent single-photoelectrode p-DSCs

Bonomo

Ekoi

Marrani

et al. 2021

Sustainable Energy Fuels

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“…The optimization of contrast agents for CT imaging should be considered not only about the attenuation ability of elements, but also the sensitivity to X-ray. Perovskite, as emerging materials, have shown significant developments in the field of photovoltaics 68 . It is worth noting that the characteristics such as contain high atomic number elements, large carrier mobility and lifetime, solution processible make it an ideal material for direct X-ray imaging [69][70][71] .…”

Section: Perovskite Nanoparticles For X-ray Imagingmentioning

confidence: 99%

Nanoparticles: Untying the Gordian Knot in Conventional Computed Tomography Imaging

Sun

et al. 2021

CCS Chem

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X-ray computed tomography (CT) imaging plays an essential role in disease diagnosis due to its noninvasive, painless mode, and superior penetration depth.However, the resolution of the soft tissue and minor lesions remains limited. And the disadvantages of conventional contrast agents, such as inefficient targeting capability, poor biocompatibility, and short circulation times, are considered intractable in clinical using. To overcome these "Gordian Knot", nanoparticles for CT imaging have been developed to achieve the purposes that people aspire to. The advantages of nanoparticles are excepted high sensitivity to X-ray and better imaging performance in vivo, even therapeutic effect. In particular, based on the various design, nanoparticle contrast agents composed of different materials integrate multiple imaging modalities, make up the inadequacy of a single imaging type, and thus provide more accurate information for diagnosis. This review focus on the nanoparticles for X-ray CT imaging, and of which the multi-functional designs. Some perspectives of crucial problems and prospective challenges are also further discussed.

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Recent progress, fabrication challenges and stability issues of lead-free tin-based perovskite thin films in the field of photovoltaics

Cited by 68 publications

References 118 publications

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

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

NiO/ZrO₂ nanocomposites as photocathodes of tandem DSCs with higher photoconversion efficiency with respect to parent single-photoelectrode p-DSCs

Nanoparticles: Untying the Gordian Knot in Conventional Computed Tomography Imaging

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Recent progress, fabrication challenges and stability issues of lead-free tin-based perovskite thin films in the field of photovoltaics

Cited by 68 publications

References 118 publications

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

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

NiO/ZrO2 nanocomposites as photocathodes of tandem DSCs with higher photoconversion efficiency with respect to parent single-photoelectrode p-DSCs

Nanoparticles: Untying the Gordian Knot in Conventional Computed Tomography Imaging

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NiO/ZrO₂ nanocomposites as photocathodes of tandem DSCs with higher photoconversion efficiency with respect to parent single-photoelectrode p-DSCs