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Title: Luminescence mechanism in hydrogenated silicon quantum dots with a single oxygen ligand

Abstract

Though photoluminescence (PL) of Si quantum dots (QDs) has been known for decades and both theoretical and experimental studies have been extensive, their luminescence mechanism has not been elaborated. Several models have been proposed to explain the mechanism. A deep insight into the origin of light emissions in Si QDs is necessary. This work calculated the ground- and excited state properties of hydrogenated Si QDs with various diameters, including full hydrogen passivation, single Si=O ligands, single epoxide and coexisting Si=O and epoxide structures in order to investigate the dominant contribution states for luminescence. The results revealed that even a single oxygen atom in hydrogenated Si QDs can dramatically change their electronic and optical properties. Intriguingly, we found that a size-independent emission, the strongest among all possible emissions, was induced by the single Si=O passivated Si-QDs. In non-oxidized Si-QDs exhibiting a core-related size-tunable emission, the luminescence properties can be modulated by the ligands of Si QDs, and a very small number of oxygen ligands can strongly influence the luminescence of nanocrystalline silicon. Our findings deepen the understanding of the PL mechanism of Si QDs and can further promote the development of silicon-based optoelectronic devices.

Authors:
 [1];  [1];  [1];  [1]; ORCiD logo [1]; ORCiD logo [2];  [1]; ORCiD logo [1]; ORCiD logo [3];  [1]; ORCiD logo [4];  [4]; ORCiD logo [5]
  1. Fudan Univ., Shanghai (China)
  2. National Taipei University of Technology, Taipei (Taiwan)
  3. Henan University (China)
  4. Ames Lab., and Iowa State Univ., Ames, IA (United States)
  5. Fudan Univ., Shanghai (China); Key Laboratory for Information Science of Electromagnetic Waves (MoE), Shanghai (China)
Publication Date:
Research Org.:
Ames Lab., Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; Shanghai Municipal Science and Technology Commission; National Natural Science Foundation of China (NSFC); CIOMP-Fudan University; Ministry of Science and Technology
OSTI Identifier:
1778692
Report Number(s):
IS-J-10,464
Journal ID: ISSN 2516-0230
Grant/Contract Number:  
AC02-07CH11358; 18JC1411500; 11374055; 61427815; FC2017-001; MOST-109-2112-M-979-001
Resource Type:
Accepted Manuscript
Journal Name:
Nanoscale Advances
Additional Journal Information:
Journal Volume: 3; Journal Issue: 8; Journal ID: ISSN 2516-0230
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Shen, Hong, Yu, Zhiyuan, Wang, Jinjin, Lu, Ming, Qiao, Chong, Su, Wan-Sheng, Zheng, Yuxiang, Zhang, Rongjun, Jia, Yu, Chen, Liangyao, Wang, Caizhuang, Ho, Kaiming, and Wang, Songyou. Luminescence mechanism in hydrogenated silicon quantum dots with a single oxygen ligand. United States: N. p., 2021. Web. doi:10.1039/d0na00986e.
Shen, Hong, Yu, Zhiyuan, Wang, Jinjin, Lu, Ming, Qiao, Chong, Su, Wan-Sheng, Zheng, Yuxiang, Zhang, Rongjun, Jia, Yu, Chen, Liangyao, Wang, Caizhuang, Ho, Kaiming, & Wang, Songyou. Luminescence mechanism in hydrogenated silicon quantum dots with a single oxygen ligand. United States. https://doi.org/10.1039/d0na00986e
Shen, Hong, Yu, Zhiyuan, Wang, Jinjin, Lu, Ming, Qiao, Chong, Su, Wan-Sheng, Zheng, Yuxiang, Zhang, Rongjun, Jia, Yu, Chen, Liangyao, Wang, Caizhuang, Ho, Kaiming, and Wang, Songyou. Fri . "Luminescence mechanism in hydrogenated silicon quantum dots with a single oxygen ligand". United States. https://doi.org/10.1039/d0na00986e. https://www.osti.gov/servlets/purl/1778692.
@article{osti_1778692,
title = {Luminescence mechanism in hydrogenated silicon quantum dots with a single oxygen ligand},
author = {Shen, Hong and Yu, Zhiyuan and Wang, Jinjin and Lu, Ming and Qiao, Chong and Su, Wan-Sheng and Zheng, Yuxiang and Zhang, Rongjun and Jia, Yu and Chen, Liangyao and Wang, Caizhuang and Ho, Kaiming and Wang, Songyou},
abstractNote = {Though photoluminescence (PL) of Si quantum dots (QDs) has been known for decades and both theoretical and experimental studies have been extensive, their luminescence mechanism has not been elaborated. Several models have been proposed to explain the mechanism. A deep insight into the origin of light emissions in Si QDs is necessary. This work calculated the ground- and excited state properties of hydrogenated Si QDs with various diameters, including full hydrogen passivation, single Si=O ligands, single epoxide and coexisting Si=O and epoxide structures in order to investigate the dominant contribution states for luminescence. The results revealed that even a single oxygen atom in hydrogenated Si QDs can dramatically change their electronic and optical properties. Intriguingly, we found that a size-independent emission, the strongest among all possible emissions, was induced by the single Si=O passivated Si-QDs. In non-oxidized Si-QDs exhibiting a core-related size-tunable emission, the luminescence properties can be modulated by the ligands of Si QDs, and a very small number of oxygen ligands can strongly influence the luminescence of nanocrystalline silicon. Our findings deepen the understanding of the PL mechanism of Si QDs and can further promote the development of silicon-based optoelectronic devices.},
doi = {10.1039/d0na00986e},
journal = {Nanoscale Advances},
number = 8,
volume = 3,
place = {United States},
year = {Fri Feb 26 00:00:00 EST 2021},
month = {Fri Feb 26 00:00:00 EST 2021}
}

Works referenced in this record:

Size, oxidation, and strain in small Si / SiO 2 nanocrystals
journal, October 2009


Balanced basis sets of split valence, triple zeta valence and quadruple zeta valence quality for H to Rn: Design and assessment of accuracy
journal, January 2005

  • Weigend, Florian; Ahlrichs, Reinhart
  • Physical Chemistry Chemical Physics, Vol. 7, Issue 18, p. 3297-3305
  • DOI: 10.1039/b508541a

Density‐functional thermochemistry. III. The role of exact exchange
journal, April 1993

  • Becke, Axel D.
  • The Journal of Chemical Physics, Vol. 98, Issue 7, p. 5648-5652
  • DOI: 10.1063/1.464913

Quantum confinement in nanoscale silicon: The correlation of size with bandgap and luminescence
journal, February 1998


Electronic structure and optical properties of silicon crystallites: Application to porous silicon
journal, October 1992

  • Proot, J. P.; Delerue, C.; Allan, G.
  • Applied Physics Letters, Vol. 61, Issue 16
  • DOI: 10.1063/1.108372

Characterization of electronic transitions in complex molecules
journal, January 1950


Development of the Colle-Salvetti correlation-energy formula into a functional of the electron density
journal, January 1988


Size-Dependent Photoluminescence Efficiency of Silicon Nanocrystal Quantum Dots
journal, October 2017

  • Yu, Yixuan; Fan, Gang; Fermi, Andrea
  • The Journal of Physical Chemistry C, Vol. 121, Issue 41
  • DOI: 10.1021/acs.jpcc.7b08054

A simplified time-dependent density functional theory approach for electronic ultraviolet and circular dichroism spectra of very large molecules
journal, July 2014


Visible light emission due to quantum size effects in highly porous crystalline silicon
journal, September 1991

  • Cullis, A. G.; Canham, L. T.
  • Nature, Vol. 353, Issue 6342
  • DOI: 10.1038/353335a0

Analysis of the stretched exponential photoluminescence decay from nanometer-sized silicon crystals in SiO2
journal, December 1999

  • Linnros, Jan; Lalic, Nenad; Galeckas, Augustinas
  • Journal of Applied Physics, Vol. 86, Issue 11
  • DOI: 10.1063/1.371663

The ORCA program system: The ORCA program system
journal, June 2011

  • Neese, Frank
  • Wiley Interdisciplinary Reviews: Computational Molecular Science, Vol. 2, Issue 1
  • DOI: 10.1002/wcms.81

Impact of Anchoring Monolayers on the Enhancement of Radiative Recombination in Light-Emitting Diodes Based on Silicon Nanocrystals
journal, March 2018

  • Ghosh, Batu; Hamaoka, Takumi; Nemoto, Yoshihiro
  • The Journal of Physical Chemistry C, Vol. 122, Issue 11
  • DOI: 10.1021/acs.jpcc.7b12812

Temperature dependence of photoluminescence in silicon quantum dots
journal, June 2007

  • Wen, Xiaoming; Dao, Lap Van; Hannaford, Peter
  • Journal of Physics D: Applied Physics, Vol. 40, Issue 12
  • DOI: 10.1088/0022-3727/40/12/005

Size-Dependent Absolute Quantum Yields for Size-Separated Colloidally-Stable Silicon Nanocrystals
journal, December 2011

  • Mastronardi, Melanie L.; Maier-Flaig, Florian; Faulkner, Daniel
  • Nano Letters, Vol. 12, Issue 1
  • DOI: 10.1021/nl2036194

High Level Ab Initio Calculations of the Optical Gap of Small Silicon Quantum Dots
journal, December 2001


Oxide and hydrogen capped ultrasmall blue luminescent Si nanoparticles
journal, August 2000

  • Belomoin, Gennadiy; Therrien, Joel; Nayfeh, Munir
  • Applied Physics Letters, Vol. 77, Issue 6
  • DOI: 10.1063/1.1306659

Self-consistent molecular Hartree—Fock—Slater calculations I. The computational procedure
journal, September 1973


Abrupt Size Partitioning of Multimodal Photoluminescence Relaxation in Monodisperse Silicon Nanocrystals
journal, February 2017


Density-Functional Theory for Time-Dependent Systems
journal, March 1984


Temperature Dependence of the Luminescence Lifetime of Single C d S e / Z n S Quantum Dots
journal, June 2003


Einstein coefficients, cross sections, f values, dipole moments, and all that
journal, November 1982

  • Hilborn, Robert C.
  • American Journal of Physics, Vol. 50, Issue 11
  • DOI: 10.1119/1.12937

Synthesis of Ligand-Stabilized Silicon Nanocrystals with Size-Dependent Photoluminescence Spanning Visible to Near-Infrared Wavelengths
journal, December 2011

  • Hessel, Colin M.; Reid, Dariya; Panthani, Matthew G.
  • Chemistry of Materials, Vol. 24, Issue 2
  • DOI: 10.1021/cm2032866

Bandgap Engineering in OH-Functionalized Silicon Nanocrystals: Interplay between Surface Functionalization and Quantum Confinement
journal, August 2017

  • Bürkle, Marius; Lozac'h, Mickaël; McDonald, Calum
  • Advanced Functional Materials, Vol. 27, Issue 37
  • DOI: 10.1002/adfm.201701898

Bright Silicon Nanocrystals from a Liquid Precursor: Quasi-Direct Recombination with High Quantum Yield
journal, March 2020

  • Pringle, Todd A.; Hunter, Katharine I.; Brumberg, Alexandra
  • ACS Nano, Vol. 14, Issue 4
  • DOI: 10.1021/acsnano.9b09614

Temperature-dependent photoluminescence of surface-engineered silicon nanocrystals
journal, June 2016

  • Mitra, Somak; Švrček, Vladimir; Macias-Montero, Manual
  • Scientific Reports, Vol. 6, Issue 1
  • DOI: 10.1038/srep27727

An all-silicon laser based on silicon nanocrystals with high optical gains
journal, January 2018


Role of quantum confinement in luminescence efficiency of group IV nanostructures
journal, January 2014

  • Barbagiovanni, E. G.; Lockwood, D. J.; Rowell, N. L.
  • Journal of Applied Physics, Vol. 115, Issue 4
  • DOI: 10.1063/1.4863397

Surface Chemistry of Silicon Nanoclusters
journal, February 2002


Revisiting an Ongoing Debate: What Role Do Surface Groups Play in Silicon Nanocrystal Photoluminescence?
journal, July 2017


Absorption and emission of light in nanoscale silicon structures
journal, March 1994


Light-Emitting Diodes Based on Colloidal Silicon Quantum Dots with Octyl and Phenylpropyl Ligands
journal, January 2018

  • Liu, Xiangkai; Zhao, Shuangyi; Gu, Wei
  • ACS Applied Materials & Interfaces, Vol. 10, Issue 6
  • DOI: 10.1021/acsami.7b16980

Electronic States and Luminescence in Porous Silicon Quantum Dots: The Role of Oxygen
journal, January 1999


Bright and multicolor luminescent colloidal Si nanocrystals prepared by pulsed laser irradiation in liquid
journal, January 2016

  • Nakamura, Toshihiro; Yuan, Ze; Watanabe, Kanta
  • Applied Physics Letters, Vol. 108, Issue 2
  • DOI: 10.1063/1.4939902

Size distribution and visible luminescence of silicon nanoparticles embedded in SiN x thin film: Role of RF power in PECVD
journal, December 2016

  • Gómez-González, Luis Andres; Dutt, Ateet; Monroy, Betsabee Marel
  • Functional Materials Letters, Vol. 10, Issue 03
  • DOI: 10.1142/S179360471750014X

Effect of the surrounding oxide on the photoabsorption spectra of Si nanocrystals
journal, June 2009


Surface passivation effects on the electronic and optical properties of 3C-SiC nanocrystals
journal, January 2015


Improvement of Laser Processing for Colloidal Silicon Nanocrystal Formation in a Reactive Solvent
journal, April 2017

  • Yuan, Ze; Nakamura, Toshihiro; Adachi, Sadao
  • The Journal of Physical Chemistry C, Vol. 121, Issue 15
  • DOI: 10.1021/acs.jpcc.7b00288

Effects of inter-nanocrystal distance on luminescence quantum yield in ensembles of Si nanocrystals
journal, December 2014

  • Valenta, J.; Greben, M.; Gutsch, S.
  • Applied Physics Letters, Vol. 105, Issue 24
  • DOI: 10.1063/1.4904472