Influence of nanocrystal concentration on the performance of hybrid P3HT:TBPO-capped CdSe nanocrystal solar cells

Benchaabane, Aïda; Hamed, Zied Ben; Sanhoury, M. A. K.; Kouki, Fayçal; Zeinert, A.; Bouchriha, H.

doi:10.1007/s00339-015-9572-7

Cited by 15 publications

(3 citation statements)

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“…81 We notice that the contact resistance R s decreasing when the concentration of NPs increases. 67 Generally, there is only one relaxation frequency in polymers, here in our materials, we found two relaxation frequency. 82…”

Section: Resultsmentioning

confidence: 44%

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Dielectric properties of poly-(3-octylthiophene) thin films mixed with oleic acid capped cadmium selenide nanoparticles

Hajlaoui

Benchaabane

Benhamed³

et al. 2020

RSC Adv.

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Section: Resultsmentioning

confidence: 44%

“…This may be attributed to the surface morphology and a homogeneous dispersion of the OA-capped CdSe NPs in the P3OT matrix which improves charge conduction at the polymer : NPs interface. 67 The complex impedance Z is given by the following equation: 68 Z ¼ Z 0 À jZ 00 (4)…”

Section: Resultsmentioning

confidence: 99%

Dielectric properties of poly-(3-octylthiophene) thin films mixed with oleic acid capped cadmium selenide nanoparticles

Hajlaoui

Benchaabane

Benhamed³

et al. 2020

RSC Adv.

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“…In addition to that, changing the concentration and type of ligands can also adjust the radiation spectrum of QDs. Previous literatures have reported that extensive surface ligands (eg, TOPO, TGA, OA) showed different effects on the band‐edge radioluminescence and defect fluorescence 18,22,23 . They can control the size and distribution of QDs, as well as the shape of crystal and the fluorescence radiation after formation effectively.…”

Section: Introductionmentioning

confidence: 99%

Regulating the Fluorescence Emission of CdSe Quantum Dots Based on the Surface Ligand Exchange with MAA

Huang

Zeng

Bai

et al. 2020

Polymers for Advanced Techs

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Cadmium selenide (CdSe) quantum dots (QDs) is a promising semiconductor and fluorescence nanocrystal with quantum size effect. To address the problem of fluorescence emission during the process of the ligand transformation of colloidal cluster CdSe QDs from nonpolar organic solvents to polar inorganic aqueous solutions, the surface ligand exchange with mercapto acetic acid (MAA) was proposed. It was attributed to the Cd‐O bond breaking and the Cd‐S bond formation. The intensity and wavelength of fluorescence emission spectra could be adjusted by controlling the concentration of MAA. The photoluminescence (PL) spectra and UV‐Vis absorption spectra of colloidal cluster CdSe QDs indicated that the electronic properties of the interface varied with the exchange of the surface ligands. Moreover, the band‐edge emission quenching occurred and the maximum redshift of the PL spectrum could reach 28 nm. The enhancement of the deep trap emission peaks of CdSe QDs appeared in 600‐900 nm region, and the maximum blue shift of the defect peak in PL spectrum could reach 80 nm with the increase concentration of MAA. The absorption spectra and PL spectra on the surface of porous alumina thin film were used to further analyze the charge separation and capture of charge carriers. This novel organic‐inorganic ligand exchange method provides an effective strategy for regulating fluorescence and electron transfer, which could be used on biological, solar cells or other practical applications.

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Catalyst‐ and Solvent‐Free Hydrophosphorylation of Aldimines with Secondary Phosphine Chalcogenides: Synthesis of Tertiary α‐Aminophosphine Oxides, Sulfides and Selenides

et al. 2022

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Influence of nanocrystal concentration on the performance of hybrid P3HT:TBPO-capped CdSe nanocrystal solar cells

Cited by 15 publications

References 50 publications

Dielectric properties of poly-(3-octylthiophene) thin films mixed with oleic acid capped cadmium selenide nanoparticles

Dielectric properties of poly-(3-octylthiophene) thin films mixed with oleic acid capped cadmium selenide nanoparticles

Regulating the Fluorescence Emission of CdSe Quantum Dots Based on the Surface Ligand Exchange with MAA

Catalyst‐ and Solvent‐Free Hydrophosphorylation of Aldimines with Secondary Phosphine Chalcogenides: Synthesis of Tertiary α‐Aminophosphine Oxides, Sulfides and Selenides

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