期刊
APPLIED PHYSICS LETTERS
卷 118, 期 4, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/5.0039653
关键词
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资金
- National Natural Science Foundation of China [11774204]
- Major Program of Natural Science Foundation of Shandong Province [ZR2019ZD43]
- ARC Centre of Excellence in Exciton Science [CE170100026]
- Qilu Young Scholar Program of Shandong University [11160082063115]
Organic photovoltaic cells serve as indoor illumination harvesters but require expensive and dark active layers for ideal output power, impacting indoor lighting environment and human visual perceptions. A free-contact strategy using one-dimensional photonic crystals can adjust the chromaticity of transmitted indoor light, allowing for broad and continuous color modulation. This approach provides a solution to alleviate light disturbance caused by organic photovoltaic cells under indoor illuminations.
Organic photovoltaic cells are appealing as indoor illumination harvesters to drive off-grid electronics in the Internet of things. However, a desirable output power usually requires expansive and dark active layers to absorb sufficient incident photons. The deployment of such large-scale dark objects is detrimental to the elaborately designed indoor lighting environment and affects human visual perceptions. Here, we propose a free-contact strategy to adjust the chromaticity of the transmitted indoor light by applying one-dimensional photonic crystals. Combining photonic crystals with various transmittances outside the photovoltaic cells, the spectral power distribution of the transmitted light can be precisely manipulated to realize a broad and consecutive color modulation covering the region from blue to orange. For certain photonic crystals, the chromaticity of propagated light can be recovered close to the light source. This work presents a solution to relieve light-disturbing in the application of organic photovoltaic cells under indoor illuminations.
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