Enhanced light absorption of silicon nanotube arrays for organic/inorganic hybrid solar cells

Huisu Jeong; Hui Song; Yusin Pak; Il Keun Kwon; Kyubong Jo; Heon Lee; Gun Young Jung

doi:10.1002/adma.201305394

Enhanced light absorption of silicon nanotube arrays for organic/inorganic hybrid solar cells

Adv Mater. 2014 Jun 4;26(21):3445-50. doi: 10.1002/adma.201305394. Epub 2014 Feb 18.

Authors

Huisu Jeong¹, Hui Song, Yusin Pak, Il Keun Kwon, Kyubong Jo, Heon Lee, Gun Young Jung

Affiliation

¹ School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 500-712, Republic of Korea.

PMID: 24550094
DOI: 10.1002/adma.201305394

Abstract

By combining nanoimprint lithography technique and a two-step lift-off process, a Si nanotube array is fabricated and applied as a light absorber for n-Si/PEDOT:PSS hybrid solar cells. The light is effectively trapped within the nanotubes and the device reveals a Jsc of 29.9 mA · cm(-2) and a power conversion efficiency of 10.03%, which is an enhancement of 13.4% compared to the cell having the best-known Si architecture of nanocones as a light absorber to date.

Keywords: light trapping; nanoimprint lithography; nanotube; photovoltaics; solar cell.

Publication types

Research Support, Non-U.S. Gov't