Comparison of the Optical Properties of Graphene and Alkyl-terminated Si and Ge Quantum Dots.

ABSTRACT: Semiconductor quantum dots are widely investigated due to their size dependent energy structure. In particular, colloidal quantum dots represent a promising nanomaterial for optoelectronic devices, such as photodetectors and solar cells, but also luminescent markers for biotechnology, among other applications. Ideal materials for these applications should feature efficient radiative recombination and absorption transitions, altogether with spectral tunability over a wide range. Group IV semiconductor quantum dots can fulfill these requirements and serve as an alternative to the commonly used direct bandgap materials containing toxic and/or rare elements. Here, we present optical properties of butyl-terminated Si and Ge quantum dots and compare them to those of graphene quantum dots, findin

SUBMITTER: de Weerd C 

PROVIDER: S-EPMC5663913 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature