Bidirectional reflection of semitransparent polytetrafluoroethylene (PTFE) sheets on a silver film

Yang, Peiyan; Zhang, Zhuomin M.

doi:10.1016/j.ijheatmasstransfer.2019.118992

Bidirectional reflection of semitransparent polytetrafluoroethylene (PTFE) sheets on a silver film

Journal Article · Thu Nov 14 00:00:00 EST 2019 · International Journal of Heat and Mass Transfer

DOI:https://doi.org/10.1016/j.ijheatmasstransfer.2019.118992· OSTI ID:1594790

Yang, Peiyan ^[1]; Zhang, Zhuomin M. ^[2]

Georgia Inst. of Technology, Atlanta, GA (United States); Georgia Institute of Technology
Georgia Inst. of Technology, Atlanta, GA (United States)

In our recent work, record-high solar reflectance (exceeding 99%) has been demonstrated by placing a layer of highly scattering, semitransparent polytetrafluoroethylene (PTFE) sheet on top of a silver film. This can significantly improve the performance of daytime radiative cooling system. Although a PTFE slab of 10-mm thick acts as an excellent diffuse reflector, it is unclear how this dual-layer structure made of a thin PTFE on a mirror-like reflector will alter the bidirectional reflection. Here, we report measurements of the bidirectional reflectance distribution function (BRDF) of the dual-layer structure using a laser scatterometer at the wavelength of 635 nm. Measurements of the BRDF and the bidirectional transmittance distribution function (BTDF) of free-standing PTFE sheets are also performed. The measured BRDF for a PTFE sheet as thin as 236 μm on Ag is essentially diffuse except at large incidence angles. A Monte Carlo ray-tracing method incorporating both surface scattering and volumetric scattering is developed to theoretically model the BRDF in order to elucidate the underlying mechanisms. Finally, the numerical model captures the main features and can be used to study the bidirectional properties for PTFE sheets thinner than what is experimentally available.

View Accepted Manuscript (DOE)

Research Organization:: Georgia Institute of Technology, Atlanta, GA (United States)

Sponsoring Organization:: National Science Foundation (NSF); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

Grant/Contract Number:: SC0018369

OSTI ID:: 1594790

Alternate ID(s):: OSTI ID: 1580181

Journal Information:: International Journal of Heat and Mass Transfer, Journal Name: International Journal of Heat and Mass Transfer Journal Issue: C Vol. 148; ISSN 0017-9310

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

References (50)

Radiative Cooling: Principles, Progress, and Potentials Hossain, Md. Muntasir; Gu, Min Advanced Science, Vol. 3, Issue 7 https://doi.org/10.1002/advs.201500360	journal	February 2016
Spectral Radiative Properties of Two-Dimensional Rough Surfaces Xuan, Yimin; Han, Yuge; Zhou, Yue International Journal of Thermophysics, Vol. 33, Issue 12 https://doi.org/10.1007/s10765-012-1349-z	journal	November 2012
Radiative Properties of Ceramic $$\hbox {Al}_{2}\hbox {O}_{3}$$, AlN and $$\hbox {Si}_{3}\hbox {N}_{4}$$—II: Modeling Yang, Peiyan; Cheng, Qiang; Zhang, Zhuomin International Journal of Thermophysics, Vol. 38, Issue 8 https://doi.org/10.1007/s10765-017-2259-x	journal	June 2017
MCML—Monte Carlo modeling of light transport in multi-layered tissues Wang, Lihong; Jacques, Steven L.; Zheng, Liqiong Computer Methods and Programs in Biomedicine, Vol. 47, Issue 2 https://doi.org/10.1016/0169-2607(95)01640-F	journal	July 1995
A statistical model of wave scattering from random rough surfaces Tang, Kakuen; Buckius, Richard O. International Journal of Heat and Mass Transfer, Vol. 44, Issue 21 https://doi.org/10.1016/S0017-9310(01)00050-3	journal	November 2001
Regions of validity of the geometric optics approximation for angular scattering from very rough surfaces Tang, Kakuen; Dimenna, Ralph A.; Buckius, Richard O. International Journal of Heat and Mass Transfer, Vol. 40, Issue 1 https://doi.org/10.1016/S0017-9310(96)00073-7	journal	October 1996
The geometric optics approximation for reflection from two-dimensional random rough surfaces Tang, Kakuen; Buckius, Richard O. International Journal of Heat and Mass Transfer, Vol. 41, Issue 13 https://doi.org/10.1016/S0017-9310(97)00227-5	journal	July 1998
Directional radiative properties of anisotropic rough silicon and gold surfaces Lee, H. J.; Chen, Y. B.; Zhang, Z. M. International Journal of Heat and Mass Transfer, Vol. 49, Issue 23-24 https://doi.org/10.1016/j.ijheatmasstransfer.2006.05.022	journal	November 2006
Investigations of the radiative properties of Al–NiP foams using tomographic images and stereoscopic micrographs Coquard, R.; Rousseau, B.; Echegut, P. International Journal of Heat and Mass Transfer, Vol. 55, Issue 5-6 https://doi.org/10.1016/j.ijheatmasstransfer.2011.11.017	journal	February 2012
Microstructural effect on the radiative properties of YSZ thermal barrier coatings (TBCs) Zhang, B. J.; Wang, B. X.; Zhao, C. Y. International Journal of Heat and Mass Transfer, Vol. 73 https://doi.org/10.1016/j.ijheatmasstransfer.2014.01.063	journal	June 2014
Study of radiative transfer in 1D densely packed bed layer containing absorbing–scattering spherical particles Wang, Cheng-An; Ma, Lan-Xin; Tan, Jian-Yu International Journal of Heat and Mass Transfer, Vol. 102 https://doi.org/10.1016/j.ijheatmasstransfer.2016.06.065	journal	November 2016
Nanoparticle embedded double-layer coating for daytime radiative cooling Huang, Zhifeng; Ruan, Xiulin International Journal of Heat and Mass Transfer, Vol. 104 https://doi.org/10.1016/j.ijheatmasstransfer.2016.08.009	journal	January 2017
A strategy of hierarchical particle sizes in nanoparticle composite for enhancing solar reflection Peoples, Joseph; Li, Xiangyu; Lv, Yaobing International Journal of Heat and Mass Transfer, Vol. 131 https://doi.org/10.1016/j.ijheatmasstransfer.2018.11.059	journal	March 2019
Radiative characteristics of Voronoi open-cell foams made from semitransparent media Li, Yang; Xia, Xin-Lin; Sun, Chuang International Journal of Heat and Mass Transfer, Vol. 133 https://doi.org/10.1016/j.ijheatmasstransfer.2019.01.016	journal	April 2019
Homogeneous phase and multi-phase approaches for modeling radiative transfer in foams Coquard, R.; Baillis, D.; Randrianalisoa, J. International Journal of Thermal Sciences, Vol. 50, Issue 9 https://doi.org/10.1016/j.ijthermalsci.2011.04.012	journal	September 2011
Numerical study of radiative properties of nanoporous silica aerogel Zhao, Y.; Tang, G. H.; Du, M. International Journal of Thermal Sciences, Vol. 89 https://doi.org/10.1016/j.ijthermalsci.2014.10.013	journal	March 2015
Pore-level determination of spectral reflection behaviors of high-porosity metal foam sheets Li, Yang; Xia, Xin-Lin; Ai, Qing Infrared Physics & Technology, Vol. 89 https://doi.org/10.1016/j.infrared.2017.12.016	journal	March 2018
Modeling the radiative properties of semitransparent wafers with rough surfaces and thin-film coatings Lee, H. J.; Lee, B. J.; Zhang, Z. M. Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 93, Issue 1-3 https://doi.org/10.1016/j.jqsrt.2004.08.021	journal	June 2005
Volumetric radiative properties of irregular open-cell foams made from semitransparent absorbing-scattering media Li, Yang; Xia, Xin-Lin; Sun, Chuang Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 224 https://doi.org/10.1016/j.jqsrt.2018.11.037	journal	February 2019
A dual-layer structure with record-high solar reflectance for daytime radiative cooling Yang, Peiyan; Chen, Chuyang; Zhang, Zhuomin M. Solar Energy, Vol. 169 https://doi.org/10.1016/j.solener.2018.04.031	journal	July 2018
Double-layer nanoparticle-based coatings for efficient terrestrial radiative cooling Bao, Hua; Yan, Chen; Wang, Boxiang Solar Energy Materials and Solar Cells, Vol. 168 https://doi.org/10.1016/j.solmat.2017.04.020	journal	August 2017
Effective Radiative Cooling by Paint-Format Microsphere-Based Photonic Random Media Atiganyanun, Sarun; Plumley, John B.; Han, Seok Jun ACS Photonics, Vol. 5, Issue 4 https://doi.org/10.1021/acsphotonics.7b01492	journal	January 2018
Bidirectional Reflection Measurements of Periodically Microstructured Silicon Surfaces Chen, Y. B.; Zhu, Q. Z.; Wright, T. L. International Journal of Thermophysics, Vol. 25, Issue 4 https://doi.org/10.1023/B:IJOT.0000038512.28195.5c	journal	July 2004
Passive radiative cooling below ambient air temperature under direct sunlight Raman, Aaswath P.; Anoma, Marc Abou; Zhu, Linxiao Nature, Vol. 515, Issue 7528, p. 540-544 https://doi.org/10.1038/nature13883	journal	November 2014
A scatterometer for measuring the bidirectional reflectance and transmittance of semiconductor wafers with rough surfaces Shen, Y. J.; Zhu, Q. Z.; Zhang, Z. M. Review of Scientific Instruments, Vol. 74, Issue 11 https://doi.org/10.1063/1.1614853	journal	November 2003
Highly specular carbon nanotube absorbers Wang, X. J.; Wang, L. P.; Adewuyi, O. S. Applied Physics Letters, Vol. 97, Issue 16 https://doi.org/10.1063/1.3502597	journal	October 2010
Anisotropic Diffraction from Inclined Silver Nanorod Arrays on Grating Templates Wang, X. J.; Haider, A. M.; Abell, J. L. Nanoscale and Microscale Thermophysical Engineering, Vol. 16, Issue 1 https://doi.org/10.1080/15567265.2011.646384	journal	January 2012
BRDF measurements of graphite used in high-temperature fixed point blackbody radiators: a multi-angle study at 405 nm and 658 nm Patrick, Heather J.; Hanssen, Leonard M.; Zeng, Jinan Metrologia, Vol. 49, Issue 2 https://doi.org/10.1088/0026-1394/49/2/S81	journal	March 2012
Geometrical shadowing of a random rough surface Smith, B. IEEE Transactions on Antennas and Propagation, Vol. 15, Issue 5 https://doi.org/10.1109/TAP.1967.1138991	journal	September 1967
A New Ward BRDF Model with Bounded Albedo Geisler-Moroder, David; Dür, Arne Computer Graphics Forum, Vol. 29, Issue 4 https://doi.org/10.1111/j.1467-8659.2010.01735.x	journal	June 2010
Radiative Properties of Semitransparent Silicon Wafers With Rough Surfaces Zhou, Y. H.; Zhang, Z. M. Journal of Heat Transfer, Vol. 125, Issue 3 https://doi.org/10.1115/1.1565089	journal	May 2003
Modeling the Radiative Properties of Microscale Random Roughness Surfaces Fu, Kang; Hsu, Pei-feng Journal of Heat Transfer, Vol. 129, Issue 1 https://doi.org/10.1115/1.2401200	journal	May 2006
Radiation Heat Transfer of Arbitrary Three–Dimensional Absorbing, Emitting and Scattering Media and Specular and Diffuse Surfaces Maruyama, S.; Aihara, T. Journal of Heat Transfer, Vol. 119, Issue 1 https://doi.org/10.1115/1.2824077	journal	February 1997
Correlation of angle-resolved light scattering with the microfacet orientation of rough silicon surfaces Zhu, Qunzhi Z. Optical Engineering, Vol. 44, Issue 7 https://doi.org/10.1117/1.1948816	journal	July 2005
Optical properties of Teflon^® AF amorphous fluoropolymers Yang, Min K. Journal of Micro/Nanolithography, MEMS, and MOEMS, Vol. 7, Issue 3 https://doi.org/10.1117/1.2965541	journal	July 2008
Light scattering of semitransparent sintered polytetrafluoroethylene films Li, Qinghe; Lee, Bong Jae; Zhang, Zhuomin M. Journal of Biomedical Optics, Vol. 13, Issue 5 https://doi.org/10.1117/1.2992485	journal	January 2008
Algorithmic model of microfacet BRDF for Monte Carlo calculation of optical radiation transfer Prokhorov, Alexander V.; Hanssen, Leonard M. Optical Science and Technology, SPIE's 48th Annual Meeting, SPIE Proceedings https://doi.org/10.1117/12.508577	conference	November 2003
Scalable-manufactured randomized glass-polymer hybrid metamaterial for daytime radiative cooling Zhai, Yao; Ma, Yaoguang; David, Sabrina N. Science, Vol. 355, Issue 6329 https://doi.org/10.1126/science.aai7899	journal	February 2017
Hierarchically porous polymer coatings for highly efficient passive daytime radiative cooling Mandal, Jyotirmoy; Fu, Yanke; Overvig, Adam C. Science, Vol. 362, Issue 6412 https://doi.org/10.1126/science.aat9513	journal	September 2018
Light diffusion in multi-layered translucent materials Donner, Craig; Jensen, Henrik Wann ACM Transactions on Graphics, Vol. 24, Issue 3 https://doi.org/10.1145/1073204.1073308	journal	July 2005
Determining the optical properties of turbid media by using the adding–doubling method Prahl, Scott A.; van Gemert, Martin J. C.; Welch, Ashley J. Applied Optics, Vol. 32, Issue 4 https://doi.org/10.1364/AO.32.000559	journal	January 1993
Angle-resolved reflectance of obliquely aligned silver nanorods Wang, X. J.; Abell, J. L.; Zhao, Y. -P. Applied Optics, Vol. 51, Issue 10 https://doi.org/10.1364/AO.51.001521	journal	January 2012
Effective emissivities of isothermal blackbody cavities calculated by the Monte Carlo method using the three-component bidirectional reflectance distribution function model Prokhorov, Alexander Applied Optics, Vol. 51, Issue 13 https://doi.org/10.1364/AO.51.002322	journal	January 2012
Optical roughness BRDF model for reverse Monte Carlo simulation of real material thermal radiation transfer Su, Peiran; Eri, Qitai; Wang, Qiang Applied Optics, Vol. 53, Issue 11 https://doi.org/10.1364/AO.53.002324	journal	January 2014
Investigation of the spectral reflectance and bidirectional reflectance distribution function of sea foam layer by the Monte Carlo method Ma, L. X.; Wang, F. Q.; Wang, C. A. Applied Optics, Vol. 54, Issue 33 https://doi.org/10.1364/AO.54.009863	journal	January 2015
Theory for Off-Specular Reflection From Roughened Surfaces* Torrance, K. E.; Sparrow, E. M. Journal of the Optical Society of America, Vol. 57, Issue 9 https://doi.org/10.1364/JOSA.57.001105	journal	January 1967
Reflection properties of pressed polytetrafluoroethylene powder Weidner, Victor R.; Hsia, Jack J. Journal of the Optical Society of America, Vol. 71, Issue 7 https://doi.org/10.1364/JOSA.71.000856	journal	January 1981
Scattering of electromagnetic waves from 3D multilayer random rough surfaces based on the second-order small perturbation method: energy conservation, reflectivity, and emissivity Sanamzadeh, Mohammadreza; Tsang, Leung; Johnson, Joel T. Journal of the Optical Society of America A, Vol. 34, Issue 3 https://doi.org/10.1364/JOSAA.34.000395	journal	January 2017
Experimental Study of the Effective brdf of a Copper foam Sheet Zhang, Wenjie; Zhao, J. M.; Liu, Linhua Proceedings of RAD-13. Proceedings of the 7th International Symposium on Radiative Transfer, June 2-8, 2013, Kusadasi, Turkey https://doi.org/10.1615/ICHMT.2013.IntSympRadTransf.130	conference	January 2013
Validity of Hybrid Models for the Bidirectional Reflectance of Coated Rough Surfaces Zhu, Q. Z.; Lee, H. J.; Zhang, Z. M. Journal of Thermophysics and Heat Transfer, Vol. 19, Issue 4 https://doi.org/10.2514/1.13595	journal	October 2005

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bidirectional reflectance distribution function
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Bidirectional reflection of semitransparent polytetrafluoroethylene (PTFE) sheets on a silver film

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