DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Light Induced Processes in CsPbBr3–Au Hybrid Nanocrystals: Electron Transfer and Expulsion of Au

Journal Article · · Journal of Physical Chemistry. C

Semiconductor–metal heterostructures such as CsPbBr3–Au are useful in photocatalysis. When Au nanoparticles are deposited on the CsPbBr3 nanocrystal surface, they efficiently quench the photoluminescence of the semiconductor. This process has been studied by femtosecond transient absorption spectroscopy measurements, which indicate that electron transfer to the Au nanoparticles occurs from both hot and relaxed electrons in the conduction band of CsPbBr3. The electron transfer rate constant is much larger for the hot electrons compared to the relaxed electrons. Under steady state photoirradiation of CsPbBr3–Au heterostructure, the photogenerated electrons from the excited CsPbBr3 nanocrystals continue to charge the Au nanoparticles. After sufficient irradiation, the gold nanoparticles dissociate from the CsPbBr3 surface and aggregate into larger size gold nanoparticles. The expulsion of gold nanoparticles restores the original luminescence behavior of CsPbBr3 nanocrystals. The spectroscopic and morphological studies provide insight into the expulsion of gold nanoparticles in photoirradiated CsPbBr3–Au heterostructures.

Research Organization:
Univ. of Notre Dame, IN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
FC02-04ER15533
OSTI ID:
1830757
Journal Information:
Journal of Physical Chemistry. C, Journal Name: Journal of Physical Chemistry. C Journal Issue: 32 Vol. 125; ISSN 1932-7447
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (64)

The Monolayer Thickness Dependence of Quantized Double-Layer Capacitances of Monolayer-Protected Gold Clusters journal September 1999
Ligand Assisted Transformation of Cubic CsPbBr 3 Nanocrystals into Two-Dimensional CsPb 2 Br 5 Nanosheets journal November 2017
Effects of Chlorine Mixing on Optoelectronics, Ion Migration, and Gamma-Ray Detection in Bromide Perovskites journal February 2020
Metal Halide Perovskite Nanocrystals: Synthesis, Post-Synthesis Modifications, and Their Optical Properties journal February 2019
Recent Progress on the Stability of Perovskite Solar Cells in a Humid Environment journal November 2020
Absorption Enhancement in Organic–Inorganic Halide Perovskite Films with Embedded Plasmonic Gold Nanoparticles journal July 2015
Prominent Efficiency Enhancement in Perovskite Solar Cells Employing Silica-Coated Gold Nanorods journal March 2016
Ultrafast and Hot Electron Transfer in CdSe QD–Au Hybrid Nanostructures journal December 2019
Halide Perovskite Nanocrystal Photocatalysts for CO 2 Reduction: Successes and Challenges journal July 2020
Metal Semiconductor Heterostructures for Photocatalytic Conversion of Light Energy journal March 2015
Progress and Perspectives of Plasmon-Enhanced Solar Energy Conversion journal February 2016
Ultrafast Charge Separation in Two-Dimensional CsPbBr 3 Perovskite Nanoplatelets journal January 2019
Probing Perovskite Photocatalysis. Interfacial Electron Transfer between CsPbBr 3 and Ferrocene Redox Couple journal September 2019
Efficient Hot Electron Transfer from Small Au Nanoparticles journal May 2020
Visualizing Ultrafast Electron Transfer Processes in Semiconductor–Metal Hybrid Nanoparticles: Toward Excitonic–Plasmonic Light Harvesting journal January 2021
Au Exchange or Au Deposition: Dual Reaction Pathways in Au–CsPbBr 3 Heterostructure Nanoparticles journal August 2017
Core–Shell CsPbBr 3 @CdS Quantum Dots with Enhanced Stability and Photoluminescence Quantum Yields for Optoelectronic Devices journal July 2020
Solar-Driven Metal Halide Perovskite Photocatalysis: Design, Stability, and Performance journal March 2020
Semitransparent Perovskite Solar Cells journal April 2020
CsPbBr 3 /ZnS Core/Shell Type Nanocrystals for Enhancing Luminescence Lifetime and Water Stability journal May 2020
Materials and Methods for Interface Engineering toward Stable and Efficient Perovskite Solar Cells journal July 2020
Progress in Perovskite Photocatalysis journal July 2020
Perovskite Quantum Dots for Application in High Color Gamut Backlighting Display of Light-Emitting Diodes journal October 2020
Challenges and Opportunities for CsPbBr 3 Perovskites in Low- and High-Energy Radiation Detection journal March 2021
Is There Anything Better than Pt for HER? journal March 2021
Synergistic Photochemistry of Alcohols Catalyzed by Plasmonic Nanoparticles and a Metal Complex journal April 2021
Au–CsPbBr 3 Hybrid Architecture: Anchoring Gold Nanoparticles on Cubic Perovskite Nanocrystals journal December 2016
What’s so Hot about Electrons in Metal Nanoparticles? journal June 2017
Opportunities and Challenges of Solar-Energy-Driven Carbon Dioxide to Fuel Conversion with Plasmonic Catalysts journal August 2017
Achieving Near-Unity Photoluminescence Efficiency for Blue-Violet-Emitting Perovskite Nanocrystals journal November 2018
Perovskite Photocatalysis. Methyl Viologen Induces Unusually Long-Lived Charge Carrier Separation in CsPbBr 3 Nanocrystals journal December 2019
Band Bending in Semiconductors: Chemical and Physical Consequences at Surfaces and Interfaces journal June 2012
Dynamic Burstein-Moss shift in semiconductor colloids journal April 1989
Catalysis with TiO 2 /Gold Nanocomposites. Effect of Metal Particle Size on the Fermi Level Equilibration journal April 2004
Charge Separation and Catalytic Activity of Ag@TiO 2 Core−Shell Composite Clusters under UV−Irradiation journal March 2005
Ultrafast Charge Separation and Long-Lived Charge Separated State in Photocatalytic CdS–Pt Nanorod Heterostructures journal June 2012
Demonstration of Energy-Resolved γ-Ray Detection at Room Temperature by the CsPbCl 3 Perovskite Semiconductor journal January 2021
Semiconductor−Metal Composite Nanostructures. To What Extent Do Metal Nanoparticles Improve the Photocatalytic Activity of TiO 2 Films? journal November 2001
Photophysical, Photochemical and Photocatalytic Aspects of Metal Nanoparticles journal August 2002
“Hot Electron” Photo-Charging and Electrochemical Discharge Kinetics of Silver Nanocrystals journal October 2007
Theory of Photoinjection of Hot Plasmonic Carriers from Metal Nanostructures into Semiconductors and Surface Molecules journal July 2013
Electrochemical Quantized Capacitance Charging of Surface Ensembles of Gold Nanoparticles journal November 1999
Optical Nonlinearities and Ultrafast Carrier Dynamics in Semiconductor Nanocrystals journal July 2000
Photocatalytic Water Splitting: Recent Progress and Future Challenges journal September 2010
Size-Dependent Energy Transfer between CdSe/ZnS Quantum Dots and Gold Nanoparticles journal August 2011
Photoinduced Ultrafast Charge Separation in Plexcitonic CdSe/Au and CdSe/Pt Nanorods journal October 2013
Plasmon Resonances of Semiconductor Nanocrystals: Physical Principles and New Opportunities journal March 2014
On the Quenching of Semiconductor Quantum Dot Photoluminescence by Proximal Gold Nanoparticles journal September 2007
Visible Light-Induced Charge Retention and Photocatalysis with Hybrid CdSe−Au Nanodumbbells journal February 2008
Nanocrystals of Cesium Lead Halide Perovskites (CsPbX 3 , X = Cl, Br, and I): Novel Optoelectronic Materials Showing Bright Emission with Wide Color Gamut journal February 2015
Photocatalytic Events of CdSe Quantum Dots in Confined Media. Electrodic Behavior of Coupled Platinum Nanoparticles journal November 2010
Capture, Store, and Discharge. Shuttling Photogenerated Electrons across TiO 2 –Silver Interface journal August 2011
Know Thy Nano Neighbor . Plasmonic versus Electron Charging Effects of Metal Nanoparticles in Dye-Sensitized Solar Cells journal April 2012
The Effects of Electron and Hole Injection on the Photoluminescence of CdSe/CdS/ZnS Nanocrystal Monolayers journal March 2008
Visible-light-enhanced catalytic oxidation reactions on plasmonic silver nanostructures journal May 2011
Sensitive X-ray detectors made of methylammonium lead tribromide perovskite single crystals journal March 2016
Efficient plasmon-hot electron conversion in Ag–CsPbBr3 hybrid nanocrystals journal March 2019
Light-induced reactivity of gold and hybrid perovskite as a new possible degradation mechanism in perovskite solar cells journal January 2018
An overview on enhancing the stability of lead halide perovskite quantum dots and their applications in phosphor-converted LEDs journal January 2019
Solution-processed perovskite-colloidal quantum dot tandem solar cells for photon collection beyond 1000 nm journal January 2019
Technical and economic feasibility of centralized facilities for solar hydrogen production via photocatalysis and photoelectrochemistry journal January 2013
Reactions at noble metal contacts with methylammonium lead triiodide perovskites: Role of underpotential deposition and electrochemistry journal April 2019
Gold Nanoelectrodes of Varied Size: Transition to Molecule-Like Charging journal June 1998
Efficient hot-electron transfer by a plasmon-induced interfacial charge-transfer transition journal August 2015