Voltage-assisted SILAR deposition of CdSe quantum dots to construct a high performance of ZnS/CdSe/ZnS quantum dot-sensitized solar cells

Jin, Bin; Kong, Shu Ying; Zhang, Guo Qing; Chen, Xing Qiao; Ni, Hong Shan; Zhang, Fan; Wang, Dan Jun; Zeng, Jing

doi:10.1016/j.jcis.2020.10.132

Cited by 27 publications

(11 citation statements)

References 42 publications

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“…X-ray photoelectron spectroscopy was employed to demonstrate the chemical composition and surface chemical states of QBs. As Figure 1 d shows, the survey spectra of QBs were composed of Zn, Cd, and Se elements, which is consistent with the QDs spectra, as a previous work reported [ 36 , 37 ]. In Figure 1 f, DLS analysis indicates that the hydrodynamic diameter of the QBs is about 255 nm, while that of the QBs-mAb raises it to 315 nm.…”

Section: Resultssupporting

confidence: 89%

Quantum Dot Nanobeads Based Fluorescence Immunoassay for the Quantitative Detection of Sulfamethazine in Chicken and Milk

Wei

Liu

Wang

et al. 2021

Sensors

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Sulfamethazine (SMZ) as a broad antibiotic is widely used in livestock and poultry. However, the abuse of SMZ in livestock feed can lead to SMZ residues in food and the resistance of bacteria to drugs. Thus, a method for the detection of SMZ in food is urgently needed. In this study, quantum dot (QD) nanobeads (QBs) were synthesized by encapsulating CdSe/ZnS QDs using a microemulsion technique. The prepared QBs as signal probes were applied in lateral flow immunoassay (LFIA) for the detection of SMZ in chicken and milk. Our proposed method had limits of detection of 0.1138–0.0955 ng/mL and corresponding linear ranges of 0.2–12.5, 0.1–15 ng/mL in chicken and milk samples, respectively. The recovery of LFIA for the detection of SMZ was 80.9–109.4% and 84–101.6% in chicken and milk samples, respectively. Overall, the developed QBs-LFIA had high reliability and excellent potential for rapid and sensitive screening of SMZ in food.

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Section: Resultssupporting

confidence: 89%

Quantum Dot Nanobeads Based Fluorescence Immunoassay for the Quantitative Detection of Sulfamethazine in Chicken and Milk

Wei

Liu

Wang

et al. 2021

Sensors

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“…Because currently, the existing elemental semiconductor is very expensive and anybody cannot use it [ 5 ]. A wide-ranging investigation has been dedicated to produce numerous kinds of semiconductor thin films which are applicable in renewable sources of energy like solar cells [ 6 ]. This is because of their potential uses in the production of photovoltaic materials, optical-electronic devices, and sensor and infrared indicator instruments [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

[Retracted] Examining Impacts of Acidic Bath Temperature on Nano‐Synthesized Lead Selenide Thin Films for the Application of Solar Cells

Saka¹,

Jule²,

Nagaprasad³

et al. 2022

Bioinorganic Chemistry and Applications

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The influence of bath temperature on nano-manufactured PbSe (lead selenide) films was successfully generated by utilizing CBD on the acid solution’s metal surface tool. Pb (NO3)2 was employed as a lead ion source as a precursor, while Na2O4Se was used as a selenide ion source. The XRD characterization revealed that the prepared samples are the property of crystalline structure (111), (101), (100), and (110) Miller indices. The scanning electron microscope indicated that the particles have a rock-like shape. There was a decrement of energy bandgap that is from 2.4 eV to 1.2 eV with increasing temperature 20°C–85°C. Thin films prepared at 85°C revealed the best polycrystal structure as well as homogeneously dispersed on the substrate at superior particle scales. The photoluminescence spectrophotometer witnessed that as the temperature of the solution bath increases from 20°C to 85°C, the average strength of PL emission of the film decreases. The maximum photoluminescence strength predominantly exists at high temperatures because of self-trapped exciton recombination, formed from O2 vacancy and particle size what we call defect centres, for the deposited thin films at 45°C and 85°C. Therefore, the finest solution temperature is 85°C.

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“…The majority of the highest PL hardness is because of self-trapped exciton recombination, which is produced from particle size and is referred to as defect centres. For all elevated temperatures, the PL intensity drops instantaneously as a function of the aging time [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. In comparison, the photoluminescence intensity for wavelengths of higher wavelength for 60 min and 50 min is smaller than 40 min for wavelength intensity for higher aging time.…”

Section: Resultsmentioning

confidence: 99%

“…The anatase phase is assigned to the secondary band spectra experienced at a length of 500 nm as shown in Figure 3, whilst the rutile phase is assigned to the peaks between 500 and 550 nm. When compared to the manufacturing of electron states throughout the band gap, associated faults are much more energetically attractive, and they are shaped also during description of the TiO 2 nanoparticle anatase stage and the 500 nm band gap happens once the structure is a combination of anatase and rutile phases at a reduced oxygen flow ratio [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. The highest peak observed shows that at maximum aging the desalination of water has the highest quality.…”

Section: Resultsmentioning

confidence: 99%

“…Nanosheets prepared in alkaline have environmental pollution; usually, they yield hydroxides, which can reduce the quality of nanosheet prepared. It would be difficult to depose the maximum quality of TiO 2 nanoparticles intimate of an alkaline chemical immerse environment unless the challenge of TiO 2 preparation is overcome [13][14][15][16][17][18]. The influence of hydroxide is diminished when TiO 2 is prepared in an acidic bath.…”

Section: Introductionmentioning

confidence: 99%

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Application of Titanium Dioxide Nanoparticles Synthesized by Sol-Gel Methods in Wastewater Treatment

Saka¹,

Jule²,

Belay³

et al. 2021

Journal of Nanomaterials

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Nanotechnology from titanium dioxide has been deposited, and its application in desalination and water treatment has been investigated by using sol-gel methods. Homogeneously dispersed sphere shapes of titanium dioxide nanoparticles were observed from scanning electron microscope micrographs and decrease in size as aging time increases from 40 min to 60 min. SEM micrographs of highly transparent nanopowders show that they are detected in the visible region from UV/visible and that their red shift around maximum wavelength increases with increasing aging time due to an increase in water quality. The energy band gap of the generated nanosheet has narrowed as the aging time has increased, which is related to the red shift of the absorption spectrum edge in the sheet. The structural behaviors of deposited nanoparticles have also been investigated, which confirms the existence of anatase as well as rutile levels in the liquid phase. The findings of the PL allowed us to determine the total strength of the intensity. This shows that applying photodegradation by a solar absorber could play a vital role in desalination and water treatment.

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Voltage-assisted SILAR deposition of CdSe quantum dots to construct a high performance of ZnS/CdSe/ZnS quantum dot-sensitized solar cells

Cited by 27 publications

References 42 publications

Quantum Dot Nanobeads Based Fluorescence Immunoassay for the Quantitative Detection of Sulfamethazine in Chicken and Milk

Quantum Dot Nanobeads Based Fluorescence Immunoassay for the Quantitative Detection of Sulfamethazine in Chicken and Milk

[Retracted] Examining Impacts of Acidic Bath Temperature on Nano‐Synthesized Lead Selenide Thin Films for the Application of Solar Cells

Application of Titanium Dioxide Nanoparticles Synthesized by Sol-Gel Methods in Wastewater Treatment

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