Bismuth sulfoiodide (BiSI) for photo-chargeable charge storage device

Pathak, Amit Kumar; Mohan, A.; Batabyal, Sudip Kumar

doi:10.1007/s00339-022-05416-0

Cited by 11 publications

(12 citation statements)

References 36 publications

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“…Chalcohalides are ternary compounds that have lately been re-emerging in the scientific literature. These materials present a combination of interesting electrical and optical properties, which have encouraged their study since 1960 in applications such as sensors, , actuators, radiation detectors, − photodetectors, energy storage devices, etc. − Lately, they have appeared in several reviews as potential candidates as substitutes for lead-based perovskites in photovoltaics. − They are attracting the attention of the scientific community, and the number of studies of these materials in greater detail is increasing. − Bismuth sulfoiodide (BiSI), in particular, has been scarcely studied for technological applications, but results in photovoltaics and ionizing radiation detectors are promising. ,− One of the main attractions of BiSI is that it is made of elements that are nontoxic and relatively abundant, , making their widespread application a more sustainable alternative when comparing it with other semiconductor materials, such as CdTe and CIGS . Moreover, the band structure of BiSI has been observed to have an indirect band gap of 1.57 eV, and it presents electronic characteristics similar to those of lead halide perovskites (which account for their remarkable performance in solar cells), i.e., an ns 2 configuration of the Bi 3+ atom and diffusivity of the band structure .…”

Section: Introductionmentioning

confidence: 99%

“…While hydrothermal − or solvothermal , methods have been reported for BiSI nanocrystals and are much simpler, they are not without their drawbacks. When the starting materials are salts of the participating elements such as nitrates or chlorides for bismuth, thiourea or sulfides for sulfur, and iodide salts for iodine, the product often presents BiOI or Bi 19 S 27 I 3 as secondary phases, ,, thus hindering the creation of a pure product. In addition to this, some works have presented the formation of BiI 3 or a mixture of BiI 3 and BiSI in what was clearly an attempt to produce pure-phase BiSI. , …”

Section: Introductionmentioning

confidence: 99%

“…Chalcohalides are ternary compounds that have lately been reemerging in the scientific literature. These materials present a combination of interesting electrical and optical properties, 1 which have encouraged their study since 1960 2 in applications such as sensors, 3,4 actuators, 5 radiation detectors, 6−8 photodetectors, 9 energy storage devices, 10 etc. 11−20 Lately, they have appeared in several reviews as potential candidates as substitutes for lead-based perovskites in photovoltaics.…”

Section: Introductionmentioning

confidence: 99%

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Understanding the Crystal Growth of Bismuth Chalcohalide Nanorods through a Self-Sacrificing Template Process: A Comprehensive Study

et al. 2022

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Bismuth-based semiconductors are promising candidates for applications in photocatalysis, photodetection, solar cells, etc. BiSI in particular is attracting attention. It has anisotropic optoelectronic properties and comprises relatively abundant elements. However, the synthesis of this ternary compound presents several challenges. Here, we delve into the underlying chemical processes that lead to the crystal growth of BiSI nanorods and optimize a solution-based synthesis. The mechanism of formation of BiSI nanocrystals is the self-sacrifice of Bi2S3 nanostructures, which also act as templates. The crystallographic similarities between the chalcogenide and the chalcohalide allow for the solid state transformation from one to the other. However, there is also a synergy with the I3 – species formed in the reaction media needed to obtain BiSI. Our method makes use of a green solvent, avoids complicated media, and drastically reduces the reaction time compared to other methods. The obtained nanorods present a band gap of 1.6 eV, in accordance with the reported values. This work presents insight into the chemistry of bismuth-based semiconductors, while introducing an easy, green, and scalable synthesis of a promising material, which could also be applied to similar compounds and other chalcoiodides, such as SbSI. In addition, the optical properties of the BiSI nanorods show their potential in photovoltaic applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Understanding the Crystal Growth of Bismuth Chalcohalide Nanorods through a Self-Sacrificing Template Process: A Comprehensive Study

et al. 2022

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“…In the photosupercapacitor system, DSSCs take in radiant energy from the sun through dye molecules and converting it to a different form of energy like electrical energy that can be used during the supercapacitor charging process. A DSSCs device consists of a sensitizer, a photoactive metal oxide that is coated on a transparent photoanode substrate, a counter electrode, and an electrolyte [23] . The photogenerated electrons are separated and transferred from the dye sensitizer towards the collecting electrode by photoanode.…”

Section: Mechanisms Of a Photo-supercapacitormentioning

confidence: 99%

Recent Advances in Photo-supercapacitor: A Mini Review

Olalekan

Adedokun²,

Bello³

et al. 2022

Advanced Materials Science and Technology

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Radiant energy (solar energy) plays a vital role due to its continuous power supply and environmentally friendly in meeting the people's energy demand. The need for an endless supply of energy, majorly through solar energy exploitation has driven the expansion and diversification of a device for proper energy storage. This review summarizes a photo-supercapacitor's working mechanism. The classification of a supercapacitor was discussed and the advancements of the active components that makeup a photosupercapacitor and the improvements on photo-supercapacitor in energy storage were highlighted. For the constant generation of electricity, dye-sensitized solar cells (DSSCs) and supercapacitor are incorporated. The invention of hybridized dye-sensitized solar cell (DSSC)-capacitors and DSSC-supercapacitors are crucial in energy storage processes, and the advancement in technology has triggered the creation of a photosupercapacitor for efficient harvesting of energy and proper storage mechanisms. The intent of pairing a DSSC Advanced Materials Science and Technology with a supercapacitor for conversion of energy and proper energy storage arose when dye molecules absorb radiant energy and the absorbed energy is transformed to electrical energy. The use of active components of a photo-supercapacitor will determine its conversion efficiency. The performance of active components of photo-supercapacitors such as dye, electrolyte, photoanode, and the counter electrode are the main factors that contribute to efficient conversion of energy to improve the photo-supercapacitor's storage life.

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“…[10][11][12][13] Bismuth chalcogenide halides are an interesting class of semiconductors due to a combination of favorable features such as suitable bandgaps for light detection and harvesting, high light absorption coefficients, effective charge separation, and high chemical, thermal and, operational stability. For these reasons, they are being investigated extensively for applications in photocatalysis, 14,15 photovoltaics, 10,[16][17][18] radiation detectors, 19 supercapacitors, [20][21][22][23] etc. Furthermore, they can be fabricated in a wide variety of synthetic routes, which facilitate tunability of morphology, optical properties, and ease of processing into functional systems.…”

Section: Introductionmentioning

confidence: 99%