Solubility and Complex Formation of Some Silver Halides in Dimethylsulfoxide

Rumbaut, N. A.; Peeters, H. L.

doi:10.1002/bscb.19670760105

Cited by 11 publications

(1 citation statement)

References 4 publications

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“…[14] Therefore, additional sodium halide ligands (NaX, X = I, Br) were utilized, which enables the dissolution of AgX in the form of AgX 2− ions. [24] Furthermore, we assumed that the alkali metal, Na + ions are attracted to the negative dipole of the S sites, thereby attaching to the (100) surfaces to presumably achieve multifaceted (111, 100) passivation. [22] Among various alkali metal ligands, we considered Na + ions for (100) passivation because it shows adequate solubility in N,N-dimethylformamide (DMF) solvent with small ions size for compact passivation.…”

Section: Quadruple-ligand Ensembles For Agbis 2 Cqd Passivationmentioning

confidence: 99%

Multi‐Facet Passivation of Ternary Colloidal Quantum Dot Enabled by Quadruple‐Ligand Ensemble toward Efficient Lead‐Free Optoelectronics

Kim,

Cho,

Kim

et al. 2024

Advanced Energy Materials

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Solution‐processed ternary‐compound semiconductor AgBiS2 colloidal quantum dots (CQDs) are promising light‐absorbing materials owing to their nontoxicity and high absorption coefficient (>106 cm−1). However, rational strategies to passivate multi‐facet of ternary‐compound CQDs and manufacture stable CQD inks have not yet been proposed. In this paper, a ligand passivation strategy is proposed using a solution‐phase ligand exchange method. A quadruple‐ligand ensemble is employed to demonstrate multifaceted passivation on AgBiS2 CQDs and a highly stable CQD ink. Density functional theory studies reveal the secondary cation adsorption of silver halide passivation, indicating the synergistic passivation of the ligand ensemble. This yields a low trap density in CQD solids, improving the power conversion efficiency to 8.1% by 53% in CQD solar cells. Furthermore, the proposed device exhibits the fastest response time of 400 ns among all reported AgBiS2 devices, demonstrating its potential for efficient lead‐free optoelectronics.

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Section: Quadruple-ligand Ensembles For Agbis 2 Cqd Passivationmentioning

confidence: 99%

Multi‐Facet Passivation of Ternary Colloidal Quantum Dot Enabled by Quadruple‐Ligand Ensemble toward Efficient Lead‐Free Optoelectronics

Kim,

Cho,

Kim

et al. 2024

Advanced Energy Materials

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Dimethyl Sulfoxide in Inorganic Chemistry

Reynolds

1970

Progress in Inorganic Chemistry

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Temperature Dependence of The Solubility and Complex Formation of Silver Chloride in Dimethyl Sulfoxide

Rumbaut¹,

Peeters²

1970

Bulletin des Soc Chimique

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The temperature dependence of the solubility product of AgCl in pure dimethyl sulfoxide in the range 25 to 70 "C has been investigated. Thermodynamic values at zero ionic strength are estimated. Formation constants for the AgCI2-complex, existing in excess chloride are also tabulated as a function of temperature. The entropy and enthalpy data thus obtained are discussed in terms of ionic solvation. 1NTRODUCTlONIn a previous paper [l], a preliminary study of the solubility and complex formation equilibria of silver halides in a DMSO-NH,NO, solution was reported. It has meanwhile been recognized that in NH,NO, media ion pairing could have considerable influence on the ionic equilibria present [2]. Therefore, in the present work, we obtained our potentiometric data without addition of any supporting electrolyte, the slight variations in ionic strength being compensated for by Debye-Huckel corrections. Moreover, accuracy was gained by a modified titration device and by increasing the number of experiments. EXPERI MENTAL PARTReagent grade DMSO was dried during several days upon molecular sieves (Linde 4A), and then distilled twice under reduced pressure in a nitrogen stream. This gas, of high purity, was carefully dried over sulfuric acid and molecular sieves.The titration cell was water-jacketed and thermostatted to 0.05 "C. The silver electrode was a platinum strip, electrolytically plated with silver metal. The reference electrode was also a silver plated platinum strip, submerged in a 0.01 M AgN0,-DMSO solution. A special model of salt bridge was employed, so as to eliminate virtually any AgNO, diffusion into the titration vessel. It was filled with 0.01 M AgN0,-DMSO solution. All parts of the system, except the microburet (5 ml, 0.002 ml precision) were thermostatted.Potentials were measured by means of a compensation device composed of a Leeds and Northrup potentiometer and a pH meter Radiometer PHM 22p, which was used as a zero indicator. The accuracy of the measured potentials was 0.1 mV.Silver nitrate of high purity was crystallized twice from water by addition of methanol, dried in vacuo at 50°C and stored under nitrogen.

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Solubility and Complex Formation of Some Silver Halides in Dimethylsulfoxide

Cited by 11 publications

References 4 publications

Multi‐Facet Passivation of Ternary Colloidal Quantum Dot Enabled by Quadruple‐Ligand Ensemble toward Efficient Lead‐Free Optoelectronics

Multi‐Facet Passivation of Ternary Colloidal Quantum Dot Enabled by Quadruple‐Ligand Ensemble toward Efficient Lead‐Free Optoelectronics

Dimethyl Sulfoxide in Inorganic Chemistry

Temperature Dependence of The Solubility and Complex Formation of Silver Chloride in Dimethyl Sulfoxide

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