Control of size and distribution of silicon quantum dots in silicon dielectrics for solar cell application: A review

Dutta, Subhajit; Chatterjee, Somenath; Mallem, Kumar; Cho, Young Hyun; Yi, Junsin

doi:10.1016/j.renene.2018.06.078

Cited by 26 publications

(18 citation statements)

References 99 publications

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“…To this end, tremendous efforts have been devoted to the development of fluorescent probes for the detection of metal ions/biomolecules. − Silicon-containing nanomaterials have been widely used in various areas with immense attention, including biosensing, − fluorescence imaging, − antibacterial treatment, − and solar energy conversion, , because of their exceptional optical and/or electronic properties, excellent biocompatibility, good stability, facile fabrication, and abundant and cost-effective silicon sources. Especially in biosensing, silicon-containing nanomaterials have been extensively applied for the detection of metal ions (including Hg, Ag, Pb, Cr, etc.…”

Section: Introductionmentioning

confidence: 99%

Orange-Emissive Sulfur-Doped Organosilica Nanodots for Metal Ion/Glutathione Detection and Normal/Cancer Cell Identification

Zeng

Hua

Bao

et al. 2021

ACS Appl. Nano Mater.

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Developing a single nanosensor capable of detecting multiple metal ions or biomolecules remains a challenge. Here, we successfully developed a sensing platform for the efficient detection of various metal ions with orange-emissive sulfur-doped organosilica nanodots (S-OSiNDs). The S-OSiNDs were prepared via a one-pot solvothermal treatment of urea, citric acid, and bis[3-(triethoxysilyl)propyl]tetrasulfide in N,N-dimethylformamide. The as-prepared S-OSiNDs showed a turn-off fluorescence response toward multiple metal ions including Cu2+, Fe3+, [PdCl4]2–, Ag+, Hg2+, and Bi3+, realizing the rapid and sensitive detection with a very low detection limit of 0.6 nM (for Cu2+). In addition, the metal ion-induced fluorescence quenching of S-OSiNDs could be selectively restored by glutathione (GSH), exhibiting a sensitive GSH detection capability with low detection limits ranging from 0.03 to 0.2 μM. On the basis of the metal ion/GSH-triggered on–off–on regulation of the S-OSiNDs’ fluorescence, we successfully realized the detection of Cu2+, Fe3+, [PdCl4]2–, Ag+, Hg2+, and Bi3+ and achieved cancer/normal cell identification via fluorescence microscopic imaging. Overall, the S-OSiNDs may possess great potential for the detection of multiple metal ions in environmental monitoring and clinical diagnosis, and may also serve as a robust platform for cancer cell imaging and identification because of their capacity of highly sensitive sensing of GSH, which is overexpressed in many cancer cells. Furthermore, the present work also demonstrates that S-OSiNDs can be used for the facile synthesis of metal-incorporated nanoparticles, which we believe may find various applications in the future.

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Section: Introductionmentioning

confidence: 99%

Orange-Emissive Sulfur-Doped Organosilica Nanodots for Metal Ion/Glutathione Detection and Normal/Cancer Cell Identification

Zeng

Hua

Bao

et al. 2021

ACS Appl. Nano Mater.

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“…The sun provides a continuous energy supply more than human beings needed for various purposes so the production of energy using solar cells is a precise aspect of green and clean energy production. [ 1–3 ]…”

Section: Introductionmentioning

confidence: 99%

“…[ 9 ] Researchers across the globe have taken interest due to its increasing efficiency, eco‐friendly method for the fabrication, and employment of fewer materials which may be a cost‐effective generation. [ 2 ] The wide bandgap nanocrystalline semiconductor material has good absorption characteristics in the visible range with dye molecules to generate the more electron–hole pair. Synthetic organic dyes and metal complexes are costly than natural dyes.…”

Section: Introductionmentioning

confidence: 99%

Review on Efficiency Enhancement Using Natural Extract Mediated Dye‐Sensitized Solar Cell for Sustainable Photovoltaics

Bist

Chatterjee

2021

Energy Tech

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Dye‐sensitized solar cells (DSSCs) have turned a new horizon in energy research due to their widespread exploration over two decades by improving efficiency, cost‐effectiveness, and easy process than inorganic‐based solar cells. The major challenges are metal complexes on designing the cells and sustainability implications for further rapid expansion due to its toxicity. To overcome the problems associated with metal complexes, the dyes are extracted from bionatural sources such as flowers, fruits, barks, petals, roots, leaves, and beans of plants. These organic dyes are being nontoxic, cost‐effective, abundant, environmentally friendly, and easy to extract, which is made them extensively applicable for DSSC. Through this review, readers may get an idea about the effect in the efficiency of the solar cell by applying variable semiconductors, effects of solvents, variable light‐harvesting pigments, types of electrolytes, and modification of counter electrodes by certain polymeric materials or nanomaterials. Furthermore, the effects of methodology, processing temperature, and pH of the medium during synthesis on solar cell parameters, such as the efficiency of DSSC, are critically analyzed which are reported by other researchers.

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“…[4,8] Among the parameters affecting light emission from SiNCs in SiO x layers are the following: the impact of oxygen and chemical degradation in the ambient atmosphere, defects in the SiO x layers, substrate effects. [9][10][11] In addition, light emission may originate also from the substrate by laser-induced nonbridging oxygen hole centers (NBOHCs). [12] Achievement of efficient and controllable light emission in SiNCs would drastically enhance the development and use of Si-based optoelectronic devices due to their compatibility with mature Si-based electrical circuits.Various methods have been proposed so far to produce SiNCs embedded in different layers, such as plasma-enhanced chemical vapor deposition (PECVD), [13][14][15] electron beam (e-beam) evaporation, [16,17] ion implantation, [18,19] and sputtering.…”

mentioning

confidence: 99%

Photoluminescence and Stability of Sputtered SiO_x Layers

Hosseini-Saber

Muydinov

Ahmadi

et al. 2021

Physica Status Solidi (a)

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Silicon (Si) is the most important semiconductor material used in photovoltaic, microelectronic, and photonic devices. It is an ideal platform for monolithic integrated optoelectronic systems because it is nontoxic and inexpensive compared to the widely used III-V semiconductors. [1][2][3] However, Si was considered to be an unsuitable material for effective light generation. Its indirect bandgap stipulates weak light emission resulting from optical or electrical excitation. In 1981, quantum confinement was observed in silicon nanocrystals. [4,5] This effect was interrelated with an energy shift of optical absorption. Furthermore, light emission from Si nanocrystals (SiNCs) and porous Si was achieved. [4] Subsequently, SiNCs have drawn significant attention. As a result of the Heisenberg principle, the electron momentum distribution becomes broadened when the particle size decreases to a nanometer scale, thus providing a way for quasi-direct electronic transitions. It results in effective light generation in SiNCs via photoluminescence (PL). [6] The recombination of electrons and holes in SiNCs causes a bright PL signal at room temperature. [7] Changing the size of nanocrystals allows tuning the energy of the PL maximum. [4,8] Among the parameters affecting light emission from SiNCs in SiO x layers are the following: the impact of oxygen and chemical degradation in the ambient atmosphere, defects in the SiO x layers, substrate effects. [9][10][11] In addition, light emission may originate also from the substrate by laser-induced nonbridging oxygen hole centers (NBOHCs). [12] Achievement of efficient and controllable light emission in SiNCs would drastically enhance the development and use of Si-based optoelectronic devices due to their compatibility with mature Si-based electrical circuits.Various methods have been proposed so far to produce SiNCs embedded in different layers, such as plasma-enhanced chemical vapor deposition (PECVD), [13][14][15] electron beam (e-beam) evaporation, [16,17] ion implantation, [18,19] and sputtering. [20][21][22] Depending on the material and plasma settings, sputtering can provide homogeneous amorphous or crystalline layers with settable density. Therefore, it is also widely used in the fabrication of semiconductor and optical coatings on an industrial scale. SiNCs can form in amorphous Si-containing, e.g., SiO x , layers using annealing, which can be conductive or radiative thermal ones. It is known that

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Control of size and distribution of silicon quantum dots in silicon dielectrics for solar cell application: A review

Cited by 26 publications

References 99 publications

Orange-Emissive Sulfur-Doped Organosilica Nanodots for Metal Ion/Glutathione Detection and Normal/Cancer Cell Identification

Orange-Emissive Sulfur-Doped Organosilica Nanodots for Metal Ion/Glutathione Detection and Normal/Cancer Cell Identification

Review on Efficiency Enhancement Using Natural Extract Mediated Dye‐Sensitized Solar Cell for Sustainable Photovoltaics

Photoluminescence and Stability of Sputtered SiO_x Layers

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Control of size and distribution of silicon quantum dots in silicon dielectrics for solar cell application: A review

Cited by 26 publications

References 99 publications

Orange-Emissive Sulfur-Doped Organosilica Nanodots for Metal Ion/Glutathione Detection and Normal/Cancer Cell Identification

Orange-Emissive Sulfur-Doped Organosilica Nanodots for Metal Ion/Glutathione Detection and Normal/Cancer Cell Identification

Review on Efficiency Enhancement Using Natural Extract Mediated Dye‐Sensitized Solar Cell for Sustainable Photovoltaics

Photoluminescence and Stability of Sputtered SiOx Layers

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Photoluminescence and Stability of Sputtered SiO_x Layers