Texturing design for a light trapping system using topology optimization

Hyun Jun Soh, Jeonghoon Yoo

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


In thin film solar cells, the surface textures for light trapping is employed to enhance the energy converting efficiency. The propagating wave reflects on the metal surface coated with thin transparent conducting oxide (TCO) material and it scatters from the top TCO layer by total internal reflection. Therefore, in order to improve the energy transform efficiency due to sunlight absorbed in the absorbing layer between the top and the bottom TCO layers, the reflection angle control is required. The design issue of wave direction control is replaced with the optimization problem to maximize the wave flux at an objective domain, which is set to guide the reflection wave direction. This research suggests a texture structure using the topology optimization scheme and the design domain is set on the position of the TCO layer above the back reflector.

Original languageEnglish
Article number6136502
Pages (from-to)227-230
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number2
Publication statusPublished - 2012 Feb

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2011-0017512).

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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