@article{7f8148b64c7340258aad48e35b12012c,
title = "Concentrating photovoltaic system using a liquid crystal lens",
abstract = "A concentrating photovoltaic (CPV) system with a steady electric output adopting an electrically tunable concentration ratio of the liquid crystals (LC) lens is demonstrated. The distribution of the LC directors of the LC lens can be controlled by an applied voltage in order to adjust the number of incident photons in an area. As a result, the CPV system adopting an LC lens can be operated with a static and maximum output power density under different ambient illuminations because the LC lens with an electrically tunable concentration ratio helps to increase the photocurrent at a low illumination and prevent the effect of the series resistance at a high illumination. The detailed operating principles are discussed, and the experimental results are performed. We believe this letter can help enhance the output power density of CPV systems by using active optical elements whose concentration ratio is tunable.",
keywords = "Concentrating photovoltaic, liquid crystal (LC), liquid crystal lens",
author = "Tsou, {Yu Shih} and Lin, {Yi Hsin} and Wei, {An Chi}",
note = "Funding Information: Manuscript received July 19, 2012; revised October 4, 2012; accepted October 10, 2012. Date of publication October 15, 2012; date of current version November 28, 2012. This work was supported in part by the National Science Council (NSC) in Taiwan under Contract 101-2112-M-009-011-MY3. Y.-S. Tsou and Y.-H. Lin are with the Department of Photonics, National Chiao Tung University, Hsinchu 30010, Taiwan (e-mail: yilin@ mail.nctu.edu.tw; jameslin@faculty.nsysu.edu.tw). A.-C. Wei is with Foxsemicon Integrated Technology Inc., Miaoli 350-53, Taiwan (e-mail: an-chi.wei@plenstek.com). Color versions of one or more of the figures in this letter are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/LPT.2012.2224857",
year = "2012",
doi = "10.1109/LPT.2012.2224857",
language = "???core.languages.en_GB???",
volume = "24",
pages = "2239--2242",
journal = "IEEE Photonics Technology Letters",
issn = "1041-1135",
number = "24",
}
