Journal
NANOSCALE HORIZONS
Volume 4, Issue 2, Pages 452-456Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8nh00401c
Keywords
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Funding
- National Key Research and Development Program of China [2017YFA0204600]
- National Postdoctoral Science Foundation of China [2017M621355]
- National Natural Science Foundation of China [51721002, 51872050, 11674061, 51471051]
- Science and Technology Commission of Shanghai Municipality [18520710800, 17520742400, 15520720700]
- Programs for Professors of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning
- National Program for the Support of Top-notch Young Professionals
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It has always been a challenge to prepare self-powered ultraviolet photodetectors (UV PDs) utilizing a green, facile and low-cost method. Here, we provide such an approach for fabricating self-powered photodetectors based on Te nanowire/TiO2 nanoparticle (NP) and Te nanowire/ZnO nanoparticle (NP) heterojunctions. It is noteworthy that such devices were prepared via simply brushing non-toxic solution-processed Te nanowires and commercial TiO2 and ZnO nanoparticles onto paper. The as-obtained UV PDs can work under zero bias due to photovoltaic effects from the Te/TiO2 and Te/ZnO heterojunctions. This study not only presents high-performance UV PDs, but also provides a general and effective method for developing environmentally-friendly and energy-efficient optoelectronic devices for practical applications. The concept of employing daily-use brushes and recyclable paper provides a facile way to fabricate green low-cost PDs.
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