摘要
Controlling the distribution of solar spectrum in different bands would boost the energy harvesting efficiency and optimize the energy dispatchability.1D photonic crystal with intrinsic optical band gap can be used to split the solar spectrum for hybrid photovoltaic/thermal solar applications.Here,we designed an efficient solar spectrum optical filter based on a cermet layer,Si/SiO_(2)1D photonic crystal,and top heterostructure layer.Compared with 1D photonic crystal structure,the 1D photonic crystal heterostructure with top YSZ layer can realize the reflectance of greater than 92%in PV band and the low average reflectance in two thermal bands by tuning the effective impedance of multilayer films.The enhanced reflectance in PV band results from the huge mismatching of impedance between free space and the heterostructure structure.The top dielectric layer can also be extended to other oxides.
基金
the National Natural Science Foundation of China(51871081,11674078 and 51971081)
the Natural Science Foundation of Guangdong Province of China(2018A0303130033)
Shenzhen Fundamental Research Project(JCYJ20170811155832192)
Natural Scientific Research Innovation Foundation in Harbin Institute of Technology(HIT.NSRIF.2020060).
作者简介
Dong Wei is currently a Master student,candidate in the School of Science at Harbin Institute of Technology(Shenzhen).His currently research is mainly focused on the optical functional films for hybrid photovoltaicthermal solar system;Corresponding author:Feng Cao is currently an associate professor in the School of Science at Harbin Institute of Technology(Shenzhen).He received his Ph.D.degree in Physics from the Hong Kong Polytechnic University in 2012,followed by the first postdoctoral appointment from Boston College for one year and then 3 years from the University of Houston.His current research is mainly focused on the designing of thermoelectric devices for waste heat recovery and the optical functional films for tuning solar spectrum.E-mail addresses:caofeng@hit.edu.cn;Zuoxu Wu is currently a Ph.D,candidate in the School of Science at Harbin Institute of Technology(Shenzhen).He got his Master degree in Physics from Harbin Institute of Technology(Shenzhen)in 2019.His currently research is mainly focused on the designing of thermoelectric devices and the optical functional films,such as spectrally selective solar absorber;Yijie Liu is currently a Ph.D,candidate in the School of Physics at Harbin Institute of Technology.He got his Master degree in Physics from Harbin Institute of Technology(Shenzhen)in 2018.His currently research is mainly focused on the designing of flexible thermoelectric devices and the optical functional films;Jian Wang is currently a Master student,candidate in School of Science at Harbin Institute of Technology(Shenzhen).She started her Master’s research as a member of Feng Cao’s Group in 2019.Her currently research is mainly focused on the spectrally;Qingmei Wang is currently a Master in the Department of Materials Science and Engineering at Harbin Institute of Technology(Shenzhen)under the supervision of Prof.Qian Zhang.She mainly focuses on improving the thermoelectric performance of double half-Heusler alloys;Xingjun Liu is a professor and Dean of the Institute of Materials Genome and Big Data at Harbin Institute of Technology,Shenzhen.He received his Ph.D.degree from Tohoku University in Japan.His current research interests are materials genome engineering,superalloys,etc;Corresponding author:Qian Zhang is currently a professor in the Department of Materials Science and Engineering at the Harbin Institute of Technology(Shenzhen).She obtained her Ph.D.degree in Materials Science and Engineering from Zhejiang University.After that,she spent a year(2009e2010)as a postdoctoral fellow at the National University of Singapore.She was a research associate in the Department of Physics at Boston College(2010e2013),and the Department of Physics and TcSUH at the University of Houston(2013e2015).Her current research is mainly focused on enhancing the existing and discovering new thermoelectric materials for waste heat recovery.E-mail addresses:zhangqf@hit.edu.cn。
