skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Optically tunable mesoscale CdSe morphologies via inorganic phototropic growth

Journal Article · · Journal of Materials Chemistry C
DOI:https://doi.org/10.1039/d0tc02126a· OSTI ID:1801469

Inorganic phototropic growth using only spatially conformal illumination generated Se–Cd films that exhibited precise light-defined mesoscale morphologies including highly ordered, anisotropic, and periodic ridge and trench nanotextures over entire macroscopic substrates. Growth was accomplished via a light-induced electrochemical method using an optically and chemically isotropic solution, an unpatterned substrate, and unstructured, incoherent, low-intensity illumination in the absence of chemical directing agents or physical templates and masks. The morphologies were defined by the illumination inputs: the nanotexture long axes aligned parallel to the optical E-field vector, and the feature sizes and periods scaled with the wavelength. Optically based modeling of the growth closely reproduced the experimental results, confirming the film morphologies were fully determined by the light–matter interactions during growth. Solution processing of the Se–Cd films resulted in stoichiometric, crystalline CdSe films that also exhibited ordered nanotextures, demonstrating that inorganic phototropic growth can effect tunable, template-free generation of ordered CdSe nanostructures over macroscopic length scales.

Research Organization:
California Institute of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
SC0001293; DMR-1905963
OSTI ID:
1801469
Alternate ID(s):
OSTI ID: 1637382
Journal Information:
Journal of Materials Chemistry C, Vol. 8, Issue 36; ISSN 2050-7526
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

References (49)

Transfer of Pre-Assembled Block Copolymer Thin Film to Nanopattern Unconventional Substrates journal June 2014
Electrochemical Preparation of CdSe Nanowire Arrays journal June 2000
Shoot phototropism in higher plants: New light through old concepts journal January 2013
Laser photodeposition of metal films with microscopic features journal July 1979
Photoelectrochemical deposition of microscopic metal film patterns on Si and GaAs journal September 1981
Synthesis of Photonic Crystals for Optical Wavelengths from Semiconductor Quantum Dots journal February 1999
Light-emitting diodes made from cadmium selenide nanocrystals and a semiconducting polymer journal August 1994
Profiling Photoinduced Carrier Generation in Semiconductor Microwire Arrays via Photoelectrochemical Metal Deposition journal July 2016
Structural Colors in Nature: The Role of Regularity and Irregularity in the Structure journal August 2005
Characterization and Distribution of Water-repellent, Self-cleaning Plant Surfaces journal June 1997
Photoelectroplating Light Modulator journal January 1968
Synthesis and Characterization of Monodisperse Nanocrystals and Close-Packed Nanocrystal Assemblies journal August 2000
Fast Assembly of Ordered Block Copolymer Nanostructures through Microwave Annealing journal October 2010
Multiscale Optical Imaging of Complex Fields Based on the Use of Azobenzene Nanomotors journal June 2013
Luminescent Color Image Generation on Porous Silicon journal June 1992
Nanomovement of Azo Polymers Induced by Longitudinal Fields journal February 2014
Excitation Polarization Sensitivity of Plasmon-Mediated Silver Nanotriangle Growth on a Surface journal February 2012
Direct-write patterning of indium-tin-oxide film by high pulse repetition frequency femtosecond laser ablation journal January 2007
Plasmon-Mediated Syntheses of Metallic Nanostructures journal November 2013
The relevance of light in the formation of colloidal metal nanoparticles journal January 2014
Morphology, Properties, and Performance of Electrodeposited n-CdSe in Liquid Junction Solar Cells journal January 1982
Electrodeposited Light-Emitting Nanojunctions journal February 2013
Phototropic adjustment of the foliaceous coral Echinopora lamellosa in Palau journal May 2008
Hybrid Nanorod-Polymer Solar Cells journal March 2002
Hybrid Silicon Nanocone–Polymer Solar Cells journal May 2012
The Allotropic Forms of Selenium journal June 1900
Electrodeposited Nanophotonics journal June 2014
Colour mixing in wing scales of a butterfly journal March 2000
Self-Optimizing Photoelectrochemical Growth of Nanopatterned Se–Te Films in Response to the Spectral Distribution of Incident Illumination journal September 2015
Macroscale Transformation Optics Enabled by Photoelectrochemical Etching journal September 2015
Shape control of CdSe nanocrystals journal March 2000
Colloidal nanocrystal synthesis and the organic–inorganic interface journal September 2005
Self-directed self-assembly of nanoparticle/copolymer mixtures journal March 2005
Wedging Transfer of Nanostructures journal May 2010
Lithographic Imaging Techniques for the Formation of Nanoscopic Features journal July 1999
Bioinspired Surfaces with Special Wettability journal August 2005
Photoelectrochemical Performance of CdSe Nanorod Arrays Grown on a Transparent Conducting Substrate journal September 2009
Monoclinic selenium crystal growth journal July 1967
Template-Free Synthesis of Periodic Three-Dimensional PbSe Nanostructures via Photoelectrodeposition journal May 2018
Directional adhesion of superhydrophobic butterfly wings journal January 2007
Photoalignment of Liquid-Crystal Systems journal May 2000
Inorganic Phototropism in Electrodeposition of Se–Te journal November 2019
Anisotropic Wetting Surfaces with One-Dimesional and Directional Structures: Fabrication Approaches, Wetting Properties and Potential Applications journal February 2012
Light Control of Plant Development journal November 1997
Band-like transport, high electron mobility and high photoconductivity in all-inorganic nanocrystal arrays journal April 2011
Photonic structures in biology journal August 2003
Nanotextured Silica Surfaces with Robust Superhydrophobicity and Omnidirectional Broadband Supertransmissivity journal May 2012
Morphological Expression of the Coherence and Relative Phase of Optical Inputs to the Photoelectrodeposition of Nanopatterned Se–Te Films journal April 2016
Automated Defect and Correlation Length Analysis of Block Copolymer Thin Film Nanopatterns journal July 2015