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Variable‐emittance Infrared Electrochromic Skins Combining Unique Conducting Polymers, Ionic Liquid Electrolytes, Microporous Polymer Membranes, And Semiconductor/polymer Coatings, For Spacecraft Thermal Control

P. Chandrasekhar, Brian J. Zay, D. Lawrence, E. Caldwell, Rubik B. Sheth, R. Stephan, J. Cornwell
Published 2014 · Materials Science

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Variable emittance (e) is a property vital for the increasing needs in thermal control of future microspacecraft. This article describes fabrication, function, and performance of thin-film, flexible, variable-emittance (V-E) electrochromic skins that use a conducting polymer/-Au/-microporous membrane (CP/Au/µP) base, and a new, unique ionic liquid electrolyte (IonEl). Poly(aniline-co-diphenyl amine) with a long-chain polymeric dopant is used as the CP. A unique, patented device design yields no barrier between the active, electrochromic CP surface and the external environment, except for a thin, infrared-transparent semiconductor/polymer film that lowers solar absorptance [α(s)] and protects from atomic-O/far-UV. Use of the IonEl requires special activation methods. Data presented show tailorable e variations from 0.19 to 0.90, Δe values of >0.50 (which is the highest reported thus far for any functional V-E material, to our knowledge), α(s)  7 months under space conditions (<10−5 Pa vacuum, far-UV), show excellent durability. Other data show resistance to solar wind, atomic-O, electrostatic discharge, and micrometeoroids. These lightweight, inexpensive, advanced polymeric materials represent the only technology that can work with micro- (<20 kg) and nano- (<2 kg) spacecraft, thus eventually allowing for much greater flexibility in their design and potentially “democratizing” the entire space industry, for example, allowing small firms to launch their own, dedicated satellites. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40850.
This paper references
Electrochem. Commun
J.-H Shin (1016)
Hirosawa H. Adv. Space Res
Y Saito (1159)
Chem. Commun
C J Mathews (1249)
New J. Chem
Z Li (1327)
Synth. Met
H Li (1386)
Chem. Commun
C M Gordon (1431)
Department of Defense Standard Practice Product Verification Requirements for Launch, Upper Stage, and Space Vehicles Available at: edu/projects/reference
Mil-Std (1540)
Investigation of phase-change coatings for variable thermal control of spacecraft
W. C. Kelliher (1972)
An electrochromic display device
D. J. Barclay (1978)
Military Handbook: Application Guidelines for MIL5STD-1540B: Test Requirements for Space Vehicles (MIL-HDBK-340)
U S Air (1985)
Environmental Testing for Launch and Space Vehicles , The Aerospace Corporation , 2005
E. Perl (1985)
Military Handbook: Application Guidelines for MIL5STD-1540B: Test Requirements for Space Vehicles (MIL-HDBK-340); U.S
U. S. Air Force (1985)
American Society for Testing and Materials
Guk-Rwang Won (1987)
SAE Technical Paper Series
J. Dinwoodie (1987)
Péguy's Socialist Utopia
M. Smith (1989)
The Infrared and ElectroOptics Systems Handbook
D. E. Schmieder (1993)
The Infrared and Electro- Optics Systems Handbook
D E Schmieder (1993)
Solar Engineering of Thermal Processes, 2nd ed.
J. Duffie (1994)
Electro emissive devices: Progress made in development
A. Braig (1994)
Optical and Photonic Applications of Electroactive and Conducting Polymers.
Y. Z. Wang (1996)
European Space Agency Bulletin
M N De Parolis (1996)
Environmental Testing of MEMS for Space Applications
K. Man (1998)
High Contrast Ratio and Fast-Switching Dual Polymer Electrochromic Devices
S. Sapp (1998)
J. R. Chem. Mater
S A Sapp (1998)
Ionic liquids: a convenient solvent for environmentally friendly allylation reactions with tetraallylstannane
C. Gordon (1999)
Broadband microwave absorption and shielding properties of a poly(aniline)
P. Chandrasekhar (1999)
Conducting polymers, fundamentals and applications
P. Chandrasekhar (1999)
Conducting polymers, fundamentals and applications : a practical approach
P. Chandrasekhar (1999)
Arene hydrogenation in a room-temperature ionic liquid using a ruthenium cluster catalyst
P. J. Dyson (1999)
Chem. Commun
P J Dyson (1999)
Synth. Met
P Chandrasekhar (1999)
Poly(3,4‐ethylenedioxythiophene) and Its Derivatives: Past, Present, and Future
L. Groenendaal (2000)
TaCl5-Catalyzed Cleavage of Epoxides with Aromatic Amines
S. Chandrasekhar (2000)
Palladium catalysed Suzuki cross-coupling reactions in ambient temperature ionic liquids
C. Mathews (2000)
J. R. Adv. Mater
L Groenendaal (2000)
Electrolytes, US Pat
P. Chandrasekhar (2000)
Proceedings of Defense Conference on Night Vision
Faculty Publications from the Department of Electrical Engineering
E B Franke (2000)
Far infrared electrochromism in unique conducting polymer systems
P. Chandrasekhar (2001)
Synth. Met
P Chandrasekhar (2001)
Enhanced Contrast Dual Polymer Electrochromic Devices
I. Schwendeman (2002)
High altitude balloons with ultra thin polyethylene films
Y. Saito (2002)
Dual Cathodically and Anodically Coloring Electrochromic Polymer Based on a Spiro Bipropylenedioxythiophene [(Poly(spiroBiProDOT)]
B. Reeves (2002)
Spacecraft Thermal Control Handbook, Volume I: Fundamental Technologies
D. G. Gilmore (2002)
Use of Ionic Liquids for π-Conjugated Polymer Electrochemical Devices
W. Lu (2002)
Atomic Oxygen Protection of Materials in Low Earth Orbit
B. Banks (2002)
Large, Switchable Electrochromism in the Visible Through Far‐Infrared in Conducting Polymer Devices
P. Chandrasekhar (2002)
Polym. Prepr
M Birur (2002)
In Spacecraft Thermal Control Handbook: Fundamental Technologies
J W Welch (2002)
Adv. Funct. Mater
P Chandrasekhar (2002)
J. R. Chem. Mater
I Schwendemann (2002)
Spacecraft Thermal Control Handbook: Fundamental Technologies
J. W. Welch (2002)
J. R. Adv. Mater
B D Reeves (2002)
Variable Emittance Materials Based on Conducting Polymers for Spacecraft Thermal Control
P. Chandrasekhar (2003)
Conducting Polymer (CP) infrared electrochromics in spacecraft thermal control and military applications
P. Chandrasekhar (2003)
Ionic liquids to the rescue? Overcoming the ionic conductivity limitations of polymer electrolytes
Joon-Ho Shin (2003)
Stable Conducting Polymer Electrochemical Devices Incorporating Ionic Liquids
W. Lu (2003)
Synth. Met
P Chandrasekhar (2003)
Synth. Met
W Lu (2003)
T D Swanson (2003)
Chromogenic Phenomena in Polymers: Tunable Optical Properties
S. Jenekhe (2004)
Fabricating Conducting Polymer Electrochromic Devices Using Ionic Liquids
W. Lu (2004)
J. Electrochem. Soc
W Lu (2004)
Evaluation of an Electrochromic Device for Variable Emittance in Simulated Space Conditions
Rebekah L. Puterbaugh (2005)
Physical, chemical, theoretical aspects of conducting polymer electrochromics in the visible, IR and microwave regions ☆
P. Chandrasekhar (2005)
Electrochromic radiators for microspacecraft thermal control
K. R. Anderson (2005)
Electrochemical aspects of ionic liquids
大野 弘幸 (2005)
Cornell ’ s CUSat Has Won the Nanosat - 4 Flight Competition
A. Paris (2005)
Synth. Met
P Chandrasekhar (2005)
Environmental Testing for Launch and Space Vehicles, The Aerospace Corporation
E Perl (2005)
Toward the Development of New Textile/Plastic Electrochromic Cells Using Triphenylamine-Based Copolymers
Serge Beaupré (2006)
Ionic liquids as electrolytes
M. Galiński (2006)
American Society for Testing and Materials
S. Esterby (2006)
Ground-to-Space Effective Atomic Oxygen Fluence Correlation for DC 93-500 Silicone
K. D. Groh (2006)
Electrochim. Acta
M Galinksi (2006)
J. Spacecr Rockets
K K De Groh (2006)
Chem. Mater
S Beaupre (2006)
Variable emittance electrochromic device for satellite thermal control, AIP Conference Proceedings
H. Demiryont (2006)
Introduction: Organic Electronics and Optoelectronics
S. Forrest (2007)
A Review on the Paper “Environmental Testing for Launch and Space Vehicles”
Feng Zhenxing (2007)
Variable Emittance Electrochromic Devices for Satellite Thermal Control
Hulya Demiryont (2007)
Infrared and Laser Engineering
D Yu (2007)
Opto-Electronic Engineering
X Chen (2007)
Electrochromic Display Device, Can
P Chandrasekhar (2007)
Introduction to Organic Electronic and Optoelectronic Materials and Devices (Optical Science and Engineering Series)
S. Sun (2008)
Available at:
Infrared Technology
Y.-J Wang (2008)
In Introduction to Organic Electronic and Optoelectronic Materials and Devices Boca Raton
P Chandrasekhar (2008)
Variable emissivity infrared electrochromic device based on polyaniline conducting polymer
H. Li (2009)
A dual electrochrome of poly-(3,4-ethylenedioxythiophene) doped by N,N'-bis(3-sulfonatopropyl)-4-4'-bipyridinium--redox chemistry and electrochromism in flexible devices.
S. Bhandari (2010)
Electrochromic Radiator Coupon Level Testing and Full Scale Thermal Math Modeling for Use on Altair Lunar Lander
R. Sheth (2010)
S Bhandari (2010)
Electrochromic devices and thin film transistors from a new family of ethylenedioxythiophene based conjugated polymers
Zhongtao Li (2011)
Dual-type electrochromic device based on polypyrrole and polythiophene derivatives
A. C. Silva (2011)
Ann. Rev. Mater. Res
R J Mortimer (2011)
Ribeiro, A. S. Sol. Energy Mater. Sol. Cells
A J. C Da Silva (2011)
Spacecraft thermal control
J. Meseguer (2012)
Thermal radiation heat transfer
J. Meseguer (2012)
Eds. Spacecraft Thermal Control
J Meseguer (2012)
Ionic Liquids Improve Separations
C. Arnaud (2013)
Electroosmotic Water Vapor Transport across Novel, Smart, Functionalized Conducting Polymer Microporous Membranes in Active Mode at Very High Rates, with Concomitant Chemical Warfare (CW) Agent Blocking
P. Chandrasekhar (2013)
Reconfigurable infrared camouflage coatings from a cephalopod protein.
L. Phan (2013)
IBEX spacecraft images the heliotail, revealing an unexpected structure, e! Science News Available at: http://
Adv. Mater
L Phan (2013)
NASA-Johnson internal document
T J Cognata (2013)
Available at: whatever-happened-to-counter-infrared-camouflage-15648261
E Schechter (2013)
Available at: http://www. event-summary-8f568c6257494feb93a2620988a7dc17
Available at: at http:\\www.ashwin-ushas. com, under Electrochromics > Spacecraft Thermal Control
Sigma-Aldrich (2014)
Available at: http://cusat
Cornell Wins (2014)
Faculty Publications from the Department of Electrical Engineering, University of Nebraska, (http://digital
E. B. Franke (2014)
Available at: Fabrication/index.htm. Accessed on
Article Wileyonlinelibrary Materialsviews Com / App Www (2014)
Microscopic Radiator Flying on “Skin” of a NASA Spacecraft
K. Marren (2014)
Cornell's CUSat Has Won the Nanosat-4 Flight Competition Available at: Cornell_Wins_A_NASA_Launch_For_Nano_Satellite_999
Available at:
Faculty Publications from the Department of Electrical Engineering, University of Nebraska, (http://digital
E. B. Franke (2014)
UTIAS/SFL arranged the launch of its first experimental nanosatellite, CanX-1. Available at: id5150
Solar Engineering Of Thermal Processes
Angelika Bayer (2016)
Infrared Technology , 2008 , 2008 - 06 , TJ 06
Y.-J. Wang
Popular Mechanics , July 1 , 2013
E. Schechter
Adv. Mater. Phys. Chem
P Chandrasekhar
Microscopic Radiator Flying on " Skin " of a NASA Spacecraft, JHU Applied Physics Lab
K Marren
AIP Conf. Proc. 2005
R L Puterbaugh
Opto - Electronic Engineering , 2007 , 2007 - 01 , TP 391 . 9
X. Chen
Infrared and Laser Engineering , 2007 , 2007 - 2 , TN 219
D.-B. Yu

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X. Zhang (2019)
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Daria Kharkhan (2019)
Non-volatile, Li-doped ion gel electrolytes for flexible WO3-based electrochromic devices
Tae Yong Yun (2019)
Preparation, characterizations and electrochromic properties of copolymers containing 5, 10, 15, 20-tetra(thienyl) porphyrin and thiophene derivatives
Y. Guo (2019)
Improved electrochromic performance of polyaniline film based on well-ordered 3D micro array
F. Yue (2019)
CNT Applications in Sensors and Actuators
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Synthesis, Purification, and Chemical Modification of CNTs
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Novel multielectrochromic and fast-switching copolymers based on methoxybenzene and thiophene via electrochemical copolymerization in boron trifluoride diethyl etherate
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