% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Duan:890730, author = {Duan, Weiyuan and Bittkau, Karsten and Lambertz, Andreas and Qiu, Kaifu and Yao, Zhirong and Steuter, Paul and Qiu, Depeng and Rau, Uwe and Ding, Kaining}, title = {{I}mproved {I}nfrared {L}ight {M}anagement with {T}ransparent {C}onductive {O}xide/{A}morphous {S}ilicon {B}ack {R}eflector in {H}igh‐{E}fficiency {S}ilicon {H}eterojunction {S}olar {C}ells}, journal = {Solar RRL}, volume = {5}, number = {3}, issn = {2367-198X}, address = {Weinheim}, publisher = {Wiley-VCH}, reportid = {FZJ-2021-01153}, pages = {2000576}, year = {2021}, abstract = {To improve the infrared (IR) response, a high-refractive-index intrinsic amorphous silicon (a-Si:H) layer is introduced after metallization of bifacial silicon heterojunction (SHJ) solar cells, resulting in a transparent conductive oxide (TCO)/a-Si:H back reflector, which functions like distributed Bragg reflector (DBR). This concept is demonstrated by both Sentaurus Technology Computer-Aided Design (TCAD) simulation and experimental methods. The TCO/a-Si:H back reflector can increase rear internal reflectance by reducing the transmission loss, thus improving the IR external quantum efficiency. The using of Sn-doped In2O3 (ITO)/a-Si:H back reflector in $>23.5\%$ efficiency SHJ solar cells can improve short-circuit current density by 0.4 mA cm2 which is quite similar as using the more expensive ITO/Ag back reflector, while keeping a cell bifaciality of $55\%.$ This brings its advantage for monofacial application case. Future studies would be nice to work on higher transparent back reflectors to broaden the application in bifacial case. This back-reflector design promotes IR response of SHJ solar cells with transferring to a wide variety of TCOs.}, cin = {IEK-5}, ddc = {600}, cid = {I:(DE-Juel1)IEK-5-20101013}, pnm = {1213 - Cell Design and Development (POF4-121) / Verbundvorhaben: Street - Einsatz von hocheffizienten Solarzellen in elektrisch betriebenen Nutzfahrzeugen; Teilvorhaben: Herstellung und Entwicklung von (0324275E)}, pid = {G:(DE-HGF)POF4-1213 / G:(BMWi)0324275E}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000616487200001}, doi = {10.1002/solr.202000576}, url = {https://juser.fz-juelich.de/record/890730}, }