Transparent conductor-embedding nanolens for Si solar cells

Joondong Kim, Melvin David Kumar, Ju Hyung Yun, Hyeong Ho Park, Eunsongyi Lee, Dong Wook Kim, Hyunyub Kim, Mingeon Kim, Junsin Yi, Hongsik Kim, Chaehwan Jeong

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


We present a large-scale applicable nanolens-embedding solar cell. An electrically conductive and optically transparent indium-tin-oxide (ITO) thin film was coated on a Si substrate. After then, periodically patterned ITO nanodome-arrays were formed on the ITO film by using a nano-imprint method. This structure is effective to reduce the incident light reflection for broad wavelengths and also efficient to drive the incident photons into a light-absorbing Si substrate. There exist two electric fields. One is by a p/n junction and the other is by the light absorption into Si. We designed nanolens structures to overlap two electric fields and demonstrate highly improved solar cell performances of current and voltage values from a planar structure.

Original languageEnglish
Article number151904
JournalApplied Physics Letters
Issue number15
StatePublished - 13 Apr 2015

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