Emitter recombination current densities of boron emitters with silver/aluminum pastes

التفاصيل البيبلوغرافية
العنوان: Emitter recombination current densities of boron emitters with silver/aluminum pastes
المؤلفون: Rolf Brendel, Tobias Ohrdes, Jan Krügener, Robby Peibst, Fabian Kiefer, H. Jörg Osten
المصدر: 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC).
بيانات النشر: IEEE, 2014.
سنة النشر: 2014
مصطلحات موضوعية: inorganic chemicals, Materials science, Yield (engineering), Silicon, business.industry, Doping, technology, industry, and agriculture, chemistry.chemical_element, Condensed Matter::Materials Science, chemistry, Aluminium, Condensed Matter::Superconductivity, Physics::Accelerator Physics, Optoelectronics, Condensed Matter::Strongly Correlated Electrons, business, Boron, Recombination, Common emitter, Voltage
الوصف: In this work, we investigate the recombination current density of ion-implanted boron emitters, which are contacted with a screen printed silver/aluminum paste. Depending on the peak doping concentration and on the depth of the doping profile, we measure a significantly increased recombination current density below those contacts of up to 3500 fA/cm2. This is 3.8 times higher than the expectations obtained from device simulations. The metallized emitter surface recombination is lower when using an emitter with higher front side doping or deeper emitter doping profile. We present two approaches to reduce the recombination losses due to the metallization: (a) dual print with a non-firing busbar paste and fineline fingers yields a gain in efficiency of 0.4 % and (b) selective emitters with a higher emitter doping level underneath the front contacts and a lower doping in the intra-finger regions yield a gain in short-circuit current and open-circuit voltage compared to homogeneous emitters.
DOI: 10.1109/pvsc.2014.6925514
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::c3ca3d1141c68f0c9698f355d8882fc4
https://doi.org/10.1109/pvsc.2014.6925514
رقم الانضمام: edsair.doi...........c3ca3d1141c68f0c9698f355d8882fc4
قاعدة البيانات: OpenAIRE
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