Design of plasmonic circular grating with broadband absorption enhancements

Nan-Fu Chiu; Cheng-Du Yang; Yi-Lun Kao; Chih-Jen Cheng

doi:10.1117/12.2182348

5 May 2015 Design of plasmonic circular grating with broadband absorption enhancements

Nan-Fu Chiu, Cheng-Du Yang, Yi-Lun Kao, Chih-Jen Cheng

Proceedings Volume 9502, Metamaterials X; 950213 (2015) https://doi.org/10.1117/12.2182348
Event: SPIE Optics + Optoelectronics, 2015, Prague, Czech Republic

Abstract

We have investigated the effect of concentric circles geometry on the performance of focusing plasmonic circular grating (PCG)-coupled surface-omnidirectional absorption. We wish to highlight the essential characteristics of plasmonic circular grating nanostructure to assist researchers in developing and advancing suitable organic solar cells (OSC) for unique applications. Exactly how plasmonic enhancement and the absorption characteristics of the organic materials (P3HT:PCBM and PEDOT:PSS) interact with each other is also examined. We present experimental studies of broadband absorption enhancement in PCG structure. We show that the PCG structure can result in broadband absorption enhancement, the overall optical absorption in organic film can be greatly enhanced up to ~111.2 % compared to the planar device without grating.

Citation Download Citation

Nan-Fu Chiu, Cheng-Du Yang, Yi-Lun Kao, and Chih-Jen Cheng "Design of plasmonic circular grating with broadband absorption enhancements", Proc. SPIE 9502, Metamaterials X, 950213 (5 May 2015); https://doi.org/10.1117/12.2182348

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