Amine-induced growth of an In<sub>2</sub>O<sub>3</sub>shell on colloidal InP nanocrystals

Protière, Myriam; Reiß, Peter

doi:10.1039/b701092c

Cited by 40 publications

(42 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This phenomenon results from the reaction between the acid and the amine that yields to the amide formation and the concomitant in situ water formation. 24 This side-reaction is clearly supported by the 13 C CP MAS NMR spectrum (Fig. 5) which indicates the presence of amide.…”

mentioning

confidence: 67%

Identifying short surface ligands on metal phosphide quantum dots

Baquero

Ojo

Coppel

et al. 2016

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

show abstract

mentioning

confidence: 67%

Identifying short surface ligands on metal phosphide quantum dots

Baquero

Ojo

Coppel

et al. 2016

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

show abstract

“…However, the peaks in the luminescence spectra presented in the work did not show the short wavelength shift, which commonly takes place for absorption and luminescence upon a decrease in the particle size [28]. Moreover, the oxida tion of InP QDs yielded a shell of In 2 O 3 , i.e., a high energy gap semiconductor with an energy gap width of 3.6 eV, which must passivate defects and improve the luminescent properties of the QDs [31]. However, the luminescence properties of the QDs were deterio rated in [28] probably due to the formation of In 2 O 3 islands rather than an entire shell, with these islands likely playing the role of new traps or centers of nonra diative relaxation of excitation.…”

Section: The Role Of Componentsmentioning

confidence: 76%

Synthesis and properties of colloidal indium phosphide quantum dots

Бричкин

2015

Colloid J

View full text Add to dashboard Cite

Semiconductor colloidal quantum dots possessing unique spectral luminescent characteristics are of great interest for the development of novel materials and devices, which are promising to be used in var ious fields. However, the contemporary high quality quantum dots contain Cd, Pb, Hg, Se, and Te ions and are toxic, with this circumstance limiting their wide practical application. Therefore, the attention of researchers has recently been focused on A III B V semiconductor quantum dots-in particular, InP ones, which are markedly more environmentally safe. InP quantum dots have spectral characteristics similar to those of well studied CdSe quantum dots and can, in principle, replace the latter in many cases, especially, taking into account their more pronounced size effect caused by the narrow energy gap and the large Bohr radius of the exciton. Moreover, the stronger InP covalent bond than the ionic one in A II B VI semiconductors makes it possible to expect that they have a higher photostability and stability in active media. This work pre sents a review of the modern literature devoted to the synthesis and properties of colloidal indium phosphide quantum dots, which are very promising for use as substitutes of toxic cadmium based quantum dots.

show abstract

“…The blue-shift observed is an evidence of successful coating of the core and that the shell reduces the surface states. The ZnSe shell also greatly reduced the ratio of traprelated emission to band edge emission by a factor of 1.4 [16]. Figs.…”

Section: Resultsmentioning

confidence: 97%