NDLI: Photoelectric conversion beyond sunny days: all-weather carbon quantum dot solar cells

Content Provider	Royal Society of Chemistry (RSC)
Author	Zhang, Zhifang He, Benlin Yang, Junxia Li, Jinyu Meng, Qi Tang, Qunwei Yang, Peizhi
Copyright Year	2017
Abstract	Since the birth of solar cells, photovoltaic devices have experienced persistent breakthroughs in either crucial materials or technologies. However, the ability for power generation is only limited under sunlight illumination, i.e., all state-of-the-art solar cells can realize high-efficiency electricity outputs on sunny days. The power conversion efficiencies are zero at nights because of relatively low visible-light intensity. We present here a simple hydrothermal conversion from strawberry powders to carbon quantum dots (CQDs) for all-weather solar cell applications. Using green-emitting long persistence phosphors (LPPs) as light placeholders, the unabsorbed light ranging from visible to infrared light across CQD sensitized mesoscopic titanium dioxide (m-TiO2) can be converted into green fluorescence, allowing for persistent CQD irradiation and therefore electricity generation at nights.
Starting Page	2143
Ending Page	2150
Page Count	8
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	5
Issue Number	5
Journal	Journal of Materials Chemistry A
DOI	10.1039/c6ta09261f
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Solar cell Hydrothermal circulation Carbon quantum dots Infrared CQD Titanium dioxide Fluorescence
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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