Abstract
We have investigated the effects induced by periodic nanosphere arrays on the performance of organic solar cells (OSCs). Two-dimensional periodic arrays of polystyrene nanospheres were formed by using a colloidal lithography method together with plasma etching to trim down the size to various degrees on the substrates of OSCs. It is found that the devices prepared on such substrates can have improved light harvesting, resulting in as high as 35% enhancement in power conversion efficiency over that of the reference devices. The measured external quantum efficiency and finite-difference time-domain simulation reveal that the controlled periodic morphology of the substrate can efficiently increase light scattering in the device and thus enhance the absorption of incident light. © 2014 AIP Publishing LLC.
| Original language | English |
|---|---|
| Article number | 4884963 |
| Journal | Applied Physics Letters |
| Volume | 104 |
| Issue number | 24 |
| DOIs | |
| Publication status | Published - 16 Jun 2014 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Publisher's Copyright Statement
- COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Feng-Shuo Zu, Xiao-Bo Shi, Jian Liang, Mei-Feng Xu, Chun-Sing Lee, Zhao-Kui Wang, and Liang-Sheng Liao , "Efficient optical absorption enhancement in organic solar cells by using a 2-dimensional periodic light trapping structure", Appl. Phys. Lett. 104, 243904 (2014) and may be found at https://doi.org/10.1063/1.4884963.
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