Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

High-Pressure Phase Transition of Metastable Wurtzite-Like CuInSe2 Nanocrystals

Journal Article · · Chemistry of Materials
Ternary I–III–VI2 semiconductors, such as CuInSe2, exhibit diverse polymorphs with unique structural characteristics and optoelectronic properties. This study investigates the pressure-induced phase transitions of metastable wurtzite-like CuInSe2 nanocrystals. Using a combination of synchrotron X-ray diffraction, pair distribution function analysis, and density functional theory calculations, we reveal a transition from cation-ordered wurtzite-like (Pmc21) to cation-disordered NaCl-like (Fm3̅m) structures at 7.7 GPa. The cation-disordered NaCl-like phase persists upon decompression. Bulk modulus calculations highlight size-dependent deviations from bulk material behavior. These findings deepen our understanding of phase stability in colloidal I–III–VI2 semiconductor nanocrystals, with implications for tailoring functional materials under extreme conditions.
Research Organization:
University of Southern California, Los Angeles, CA (United States); Washington State University, Pullman, WA (United States)
Sponsoring Organization:
National Science Foundation (NSF), Division of Materials Research; USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC02-06CH11357; SC0006812; SC0025423
OSTI ID:
2533598
Alternate ID(s):
OSTI ID: 2551834
OSTI ID: 3013921
Journal Information:
Chemistry of Materials, Journal Name: Chemistry of Materials Journal Issue: 7 Vol. 37; ISSN 0897-4756
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (47)

Structural Studies of CuInS2 and CuInSe2 under High Pressure journal November 1996
Electronic properties of chalcopyrites journal January 1981
Beyond the Binaries—The Chalcopyrite and Related Semiconducting Compounds book January 1982
Pressure-induced phase transition, its mechanism and compressibility studies on nanocrystalline and bulk U3O8 journal December 2023
Activating Molybdenum Carbide Nanoparticle Catalysts under Mild Conditions Using Thermally Labile Ligands journal September 2022
Utilizing Diselenide Precursors toward Rationally Controlled Synthesis of Metastable CuInSe 2 Nanocrystals journal July 2018
Superstructural Ordering in Hexagonal CuInSe 2 Nanoparticles journal November 2018
Direct Synthesis of Novel Cu 2– x Se Wurtzite Phase journal May 2019
Pressure Induced Nanoparticle Phase Behavior, Property, and Applications journal April 2019
Formation Pathway of Wurtzite-like Cu2ZnSnSe4 Nanocrystals journal November 2021
High-Pressure Structural and Thermodynamic Properties of Cerium Orthosilicates (CeSiO4) journal February 2023
Crystal Structure of Colloidally Prepared Metastable Ag 2 Se Nanocrystals journal July 2021
Compressibility Studies of Copper Selenides Obtained by Cation Exchange Reaction Revealing the New CsCl Phase journal May 2024
Synthesis of Metastable Wurtzite CuInSe 2 Nanocrystals journal March 2010
Structural Disorder in AMoO 4 (A = Ca, Sr, Ba) Scheelite Nanocrystals journal November 2013
Synthesis of Shape-Controlled Monodisperse Wurtzite CuIn x Ga 1– x S 2 Semiconductor Nanocrystals with Tunable Band Gap journal July 2011
Formation Pathway of CuInSe 2 Nanocrystals for Solar Cells journal November 2011
Synthesis and Characterization of Wurtzite-Phase Copper Tin Selenide Nanocrystals journal December 2011
Ligand Exchange on Colloidal CdSe Nanocrystals Using Thermally Labile tert -Butylthiol for Improved Photocurrent in Nanocrystal Films journal December 2011
Structural Evolution of BaTiO 3 Nanocrystals Synthesized at Room Temperature journal May 2012
Synthesis of CuInS 2 , CuInSe 2 , and Cu(In x Ga 1- x )Se 2 (CIGS) Nanocrystal “Inks” for Printable Photovoltaics journal December 2008
Synthesis of CuInSe 2 Nanocrystals with Trigonal Pyramidal Shape journal March 2009
Structural Phase Transition and Electrical Transport Properties of CuInS 2 Nanocrystals under High Pressure journal January 2015
Development of CuInSe 2 Nanocrystal and Nanoring Inks for Low-Cost Solar Cells journal September 2008
Interlaced crystals having a perfect Bravais lattice and complex chemical order revealed by real-space crystallography journal November 2014
Recent developments in the synthesis of nanostructured chalcopyrite materials and their applications: a review journal January 2016
Pressure-induced bandgap engineering and photoresponse enhancement of wurtzite CuInS2 nanocrystals journal January 2022
Phonon softening induced phase transition of CeSiO4: a density functional theory study journal January 2024
Wurtzite-type CuInSe2 for high-performance solar cell absorber: ab initio exploration of the new phase structure journal January 2012
Synthesis and high-pressure transformation of metastable wurtzite-structured CuGaS2 nanocrystals journal January 2012
Ternary and quaternary metal chalcogenide nanocrystals: synthesis, properties and applications journal January 2013
Optical absorption and phase transitions in CuInSe 2 and CuInS 2 single crystals at high pressure journal March 1989
DIOPTAS : a program for reduction of two-dimensional X-ray diffraction data and data exploration journal May 2015
Copper Indium Selenides and Related Materials for Photovoltaic Devices journal April 2002
PDFfit2 and PDFgui: computer programs for studying nanostructure in crystals journal July 2007
High pressure orthorhombic structure of CuInSe2 journal August 2010
Experimental thermal equation of state of B2−KCl journal September 2021
First-principles calculation of the order-disorder transition in chalcopyrite semiconductors journal February 1992
Band structure and stability of zinc-blende-based semiconductor polytypes journal January 1999
High-pressure–high-temperature equation of state of KCl and KBr journal June 2012
Covalent-Ionic and Covalent-Metallic Transitions of Tetrahedrally Coordinated A N B 8 − N Crystals Under Pressure journal November 1971
PDFgetX2: a GUI-driven program to obtain the pair distribution function from X-ray powder diffraction data journal July 2004
GSAS-II : the genesis of a modern open-source all purpose crystallography software package journal March 2013
EosFit7-GUI : a new graphical user interface for equation of state calculations, analyses and teaching journal June 2016
Activation Volumes for Solid-Solid Transformations in Nanocrystals journal September 2001
Size Dependence of a First Order Solid-Solid Phase Transition: The Wurtzite to Rock Salt Transformation in CdSe Nanocrystals journal July 1994
Nanocrystals as Model Systems for Pressure-Induced Structural Phase Transitions journal January 2001