New research paper published

New research paper published in Physica Status Solidi Rapid Research Letters

The latest results of solar cells processed using the ADE texture have been published in a peer reviewed paper Physica Status Solidi Rapid Research Letters, in collaboration with Fraunhofer ISE.

Nanotextured multicrystalline Al-BSF solar cells reaching 18% conversion efficiency using industrially viable solar cell processes

Article first published online: 7 AUG 2015

DOI: 10.1002/pssr.201510219


ABSTRACT : We report recent achievements in adapting industrially used solar cell processes on nanotextured surfaces. Nanostructures were etched into c-Si surfaces by dry exothermic plasma-less reaction of F species with Si in atmospheric pressure conditions and then modified using a short post-etching process. Nanotextured multicrystalline wafers are used to prepare Al-BSF solar cells using industrially feasible solar cell proc- essing steps. In comparison to the reference acidic textured solar cells, the nanostructured cells showed gain in short circuit current (Jsc) of up to 0.8 mA/cm2 and absolute gain in conversion efficiency of up to 0.3%. The best nanotextured solar cell was independently certified to reach the conversion efficiency of 18.0%. (© 2015 WILEY-VCH Verlag GmbH &Co. KGaA, Weinheim)


  1. Bishal Kafle1,*,
  2. Abdul Mannan1,
  3. Timo Freund1,
  4. Laurent Clochard2,
  5. Edward Duffy2,
  6. Marc Hofmann1,
  7. Jochen Rentsch1 and
  8. Ralf Preu


  • texture;
  • silicon;
  • etching;
  • multicrystalline materials;
  • solar cells


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