Ultrasensitive flexible broadband photodetectors achieving pA scale dark current
Semiconductor physics: Energy saving flexible broadband hybrid photodetector Energy efficient and flexible alternative photodetector that detects both visible and invisible light comes closer to real life than ever. A group of researchers from China has developed an organic-inorganic hybrid photodet...
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| Autores principales: | , , , , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Nature Portfolio
2017
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/556b237cf11b4d4ab7fc02420ebf259e |
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| Sumario: | Semiconductor physics: Energy saving flexible broadband hybrid photodetector Energy efficient and flexible alternative photodetector that detects both visible and invisible light comes closer to real life than ever. A group of researchers from China has developed an organic-inorganic hybrid photodetector that outperforms conventional inorganic like Si and InGaAs-based photodetectors in at least two aspects: broader detection spectral range and much lower dark current. Thanks to the structural flexibility of two hybrid photosensitive materials, methyl-ammonium lead halide and lead phthalocyanine, the team engineered the large area sub-micron thick photodetector with porous structures, which is the key to reducing the standby power consumption by more than 30 times compared to the best InGaAs and Si-based photodetectors. More importantly, the hybrid photodetector needs no additional apparatus or power to cool it for continuous operation, in contrast to the InGaAs photodetector. |
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