Optical modeling of thin-film silicon solar cells with submicron periodic gratings and nonconformal layers

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

19 Citations (Scopus)

Abstract

In thin-film silicon solar cells (TFSC) efficient light management is essential in order to increase energy conversion efficiency. The application of nano-scale periodic gratings (PG) is a promising method to enhance absorption in the absorber layers of TFSC since they can efficiently scatter the incident light. Carefully designed gratings give a possibility to increase the photocurrent over a wavelength range where silicon exhibits a weak absorption. Maxwell's equations solver was employed to carry out optical simulations of TFSC with PG. Atomic force microscopy (AFM) measurements demonstrate that film deposition smoothens the morphology of PG. In the simulations we used the results of AFM measurements to define the morphology of interfaces between the layers of TFSC. An optimum smoothing of interface roughness was determined that resulted in maximum absorption in thin-film silicon solar cells.
Original languageEnglish
Title of host publicationEMRS Conference: Symposium Advanced Inorganic Materials and Concepts for Photovoltaics
EditorsA Slaoui, G Conibeer, et al.
Place of PublicationOxford, U.K.
PublisherElsevier
Pages308-312
Number of pages5
DOIs
Publication statusPublished - 2011
EventEMRS Conference: Symposium Advanced Inorganic Materials and Concepts for Photovoltaics - Oxford, U.K.
Duration: 9 May 201113 May 2011

Publication series

Name
PublisherElsevier Ltd.
NameEnergy Procedia
Volume10
ISSN (Print)1876-6102

Conference

ConferenceEMRS Conference: Symposium Advanced Inorganic Materials and Concepts for Photovoltaics
Period9/05/1113/05/11

Keywords

  • conference contrib. refereed
  • Conf.proc. > 3 pag

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