@inproceedings{c46114c96ace4159abf760c5572a5300,
title = "Understanding Transport in Heterojunction Contact Stacks by Simulating Silicon Heterojunction TLM Structures",
abstract = "Most modern silicon heterojunction solar cells use electron/hole-selective contacts in order to efficiently collect photogenerated carriers. Carrier-selective contacts are important as they block minority carriers and optimize the collection of majority carriers. However, these contact stacks contribute to the resistive loss of the solar cell which is detrimental to the overall device performance. In this paper we analyze the origin of these losses in a hole-collecting contact stack which consists of aSi:H(i)/a-Si:H(p)/ITO(n)/Ag through experiments and simulations. We analyze how the contact resistivity of the structure varies with changes in the intrinsic amorphous silicon layer thickness, temperature and ITO(n) doping. The transmission line method was used to characterize the resistive losses of the contact stack. The simulations were conducted using a commercial device simulator SILVACO. We include the ITO as a n-type semiconductor layer in our simulations.",
keywords = "TLM, amorphous silicon, device modeling, heterojunctions, silicon, simulation, solar cells",
author = "Pradyumna Muralidharan and Leilaeioun, {Ashling Mehdi} and William Weigand and Zachary Holman and Stephen Goodnick and Dragica Vasileska",
note = "Funding Information: This material is based upon work primarily supported by the Engineering Research Center Program of the National Science Foundation and the Office of Energy Efficiency and Renewa- ble Energy of the Department of Energy under NSF Cooperative Agreement No. EECǦ1041895. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect those of the National Science Foundation or Department of Energy. Publisher Copyright: {\textcopyright} 2018 IEEE.; 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 ; Conference date: 10-06-2018 Through 15-06-2018",
year = "2018",
month = nov,
day = "26",
doi = "10.1109/PVSC.2018.8548166",
language = "English (US)",
series = "2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "2166--2169",
booktitle = "2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC",
}