Large-area transparent flexible guanidinium incorporated MAPbI(3) microstructures for high-performance photodetectors with enhanced stability
| Autor: | K. D. M. Rao, Somobrata Acharya, Mozakkar Hossain, Gundam Sandeep Kumar, Bapi Pradhan, Piyush Kanti Sarkar |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Technology
Fabrication Materials science Materials Science LIGHT-EMITTING-DIODES Photodetector Materials Science Multidisciplinary MIXED CATIONS 02 engineering and technology LEAD IODIDE PEROVSKITES 010402 general chemistry 01 natural sciences Responsivity HIGH-EFFICIENCY METHYLAMMONIUM RECENT PROGRESS General Materials Science Nanoscience & Nanotechnology Perovskite (structure) Flexibility (engineering) Science & Technology business.industry Chemistry Physical 021001 nanoscience & nanotechnology Microstructure 0104 chemical sciences Transparency (projection) Chemistry PEROVSKITE SOLAR-CELLS Physical Sciences Optoelectronics Science & Technology - Other Topics GROWTH Quantum efficiency 0210 nano-technology business |
| Popis: | Unveiling the transparency and flexibility in perovskite-based photodetectors with superior photoresponse and environmental stability remains an open challenge. Here we report on guanidinium incorporated metal halide perovskite (MA1-xGuaxPbI3, x = 0 to 0.65) random percolative microstructure (RPM) fabrication using an ultra-fast spray coating technique. Remarkably, RPMs over a large area of 5 × 5 cm2 on flexible substrates with a transparency of ∼50% can be achieved with enriched environmental stability. Transparent photodetectors based on MA1-xGuaxPbI3 (x = 0.12) RPMs manifest excellent performance with a responsivity of 187 A W-1, a detectivity of 2.23 × 1012 Jones and an external quantum efficiency of 44 115%. Additionally, the photodetectors exhibited superior mechanical flexibility under a wide range of bending angles and large number of binding cycles. Integrating features including transparency, high performance, stability, flexibility and scalability within a photodetector is unmatched and holds potential for novel applications in transparent and wearable optoelectronic devices. ispartof: NANOSCALE HORIZONS vol:5 issue:4 pages:696-704 ispartof: location:England status: published |
| Databáze: | OpenAIRE |
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