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@ARTICLE{Finazzi:1029585,
      author       = {Finazzi, Lorenzo and Giani, Raffaele and Concepción, Omar
                      and Buca, Dan and Reboud, Vincent and Isella, Giovanni and
                      Tosi, Alberto},
      title        = {{M}odeling and design of {G}e{S}n avalanche photodiodes
                      with high tin content for applications at 3.3 μm},
      journal      = {IEEE journal of selected topics in quantum electronics},
      volume       = {31},
      number       = {1},
      issn         = {1077-260X},
      address      = {New York, NY},
      publisher    = {IEEE},
      reportid     = {FZJ-2024-05185},
      pages        = {3800309},
      year         = {2024},
      abstract     = {We propose and compare two back-side illuminated GeSn
                      avalanche photodiode (APD) mesa structures with $15\%$ tin
                      content operating at photon wavelengths up to 3.3 μm,
                      suitable for applications like methane gas sensing and
                      analysis of tampered olive oil. The two structures have
                      different multiplication materials: a) silicon, which
                      requires an additional Ge Strain-Relaxed Buffer (SRB) layer
                      for high-quality GeSn growth; b) germanium, which is acting
                      also as SRB layer. The latter design is innovative compared
                      to the state-of-the-art and it proposed to: i) reduce the
                      space charge region (SCR) width by avoiding a too thick Ge
                      SRB, which is required for growing high-tin-content GeSn;
                      ii) avoid one supplementary non-lattice matched
                      heterojunction in the SCR.},
      cin          = {PGI-9},
      ddc          = {620},
      cid          = {I:(DE-Juel1)PGI-9-20110106},
      pnm          = {5234 - Emerging NC Architectures (POF4-523)},
      pid          = {G:(DE-HGF)POF4-5234},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001309249800006},
      doi          = {10.1109/JSTQE.2024.3439495},
      url          = {https://juser.fz-juelich.de/record/1029585},
}