Highly efficient quantum dot near-infrared light-emitting diodes

There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

Abstract

Related collections

Most cited references 11

Record: found
Abstract: not found
Article: not found

Colloidal PbS Nanocrystals with Size-Tunable Near-Infrared Emission: Observation of Post-Synthesis Self-Narrowing of the Particle Size Distribution

M.A. Hines, G.D. Scholes (2003)

0 comments Cited 275 times – based on 0 reviews      Review now

Bookmark

Record: found
Abstract: not found
Article: not found

Charge separation and transport in conjugated-polymer/semiconductor-nanocrystal composites studied by photoluminescence quenching and photoconductivity

N. Greenham, Xiaogang Peng, A. P. Alivisatos (1996)

0 comments Cited 228 times – based on 0 reviews      Review now

Bookmark

Record: found
Abstract: found
Article: not found

Quantum-dot-in-perovskite solids.

Zhijun Ning, Xiwen Gong, Riccardo Comin … (2015)

Heteroepitaxy-atomically aligned growth of a crystalline film atop a different crystalline substrate-is the basis of electrically driven lasers, multijunction solar cells, and blue-light-emitting diodes. Crystalline coherence is preserved even when atomic identity is modulated, a fact that is the critical enabler of quantum wells, wires, and dots. The interfacial quality achieved as a result of heteroepitaxial growth allows new combinations of materials with complementary properties, which enables the design and realization of functionalities that are not available in the single-phase constituents. Here we show that organohalide perovskites and preformed colloidal quantum dots, combined in the solution phase, produce epitaxially aligned 'dots-in-a-matrix' crystals. Using transmission electron microscopy and electron diffraction, we reveal heterocrystals as large as about 60 nanometres and containing at least 20 mutually aligned dots that inherit the crystalline orientation of the perovskite matrix. The heterocrystals exhibit remarkable optoelectronic properties that are traceable to their atom-scale crystalline coherence: photoelectrons and holes generated in the larger-bandgap perovskites are transferred with 80% efficiency to become excitons in the quantum dot nanocrystals, which exploit the excellent photocarrier diffusion of perovskites to produce bright-light emission from infrared-bandgap quantum-tuned materials. By combining the electrical transport properties of the perovskite matrix with the high radiative efficiency of the quantum dots, we engineer a new platform to advance solution-processed infrared optoelectronics.

0 comments Cited 158 times – based on 0 reviews      Review now

Bookmark

All references

Author and article information

Journal

Title: Nature Photonics

Abbreviated Title: Nature Photon

Publisher: Springer Nature

ISSN (Print): 1749-4885

ISSN (Electronic): 1749-4893

Publication date Created: February 22 2016

Publication date (Print): February 22 2016

Volume: 10

Issue: 4

Pages: 253-257

Article

DOI: 10.1038/nphoton.2016.11

SO-VID: b33e66d6-a9d7-4e27-9ac0-bb399295a476

History

Data availability:

Comments

Comment on this article

scite_

Cited by 110

See all cited by

Most referenced authors 928

See all reference authors

Highly efficient quantum dot near-infrared light-emitting diodes

Read this article at

Abstract

Related collections

Photoluminescent Nanomaterials

Most cited references 11

Colloidal PbS Nanocrystals with Size-Tunable Near-Infrared Emission: Observation of Post-Synthesis Self-Narrowing of the Particle Size Distribution

Charge separation and transport in conjugated-polymer/semiconductor-nanocrystal composites studied by photoluminescence quenching and photoconductivity

Quantum-dot-in-perovskite solids.

Author and article information

Journal

Article

History

Comments

Comment on this article

Similar content 1,681

Cited by 110

Most referenced authors 928