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@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},
}