期刊
ACS APPLIED MATERIALS & INTERFACES
卷 11, 期 6, 页码 5675-5681出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b19817
关键词
solution processing; two-dimensional materials; transition metal dichalcogenide; printed electronics; optoelectronics; photonic annealing
资金
- MilliporeSigma
- Air Force Research Laboratory [FA8650-15-2-5518]
- Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF) [ECCS-1542205]
- MRSEC program at the Materials Research Center [NSF DMR-1720139]
- International Institute for Nanotechnology (IIN)
- Keck Foundation
- State of Illinois
- NSF MRSEC Program of the Materials Research Center at Northwestern University [DMR-1720139]
Solution-processed two-dimensional materials offer a scalable route toward next-generation printed devices. In this report, we demonstrate fully inkjet-printed photodetectors using molybdenum disulfide (MoS2) nanosheets as the active material and graphene as the electrodes. Percolating films of semiconducting MoS2 with high electrical conductivity are achieved with an ethyl cellulose-based ink formulation. Two classes of photodetectors are fabricated, including thermally annealed devices on glass with fast photoresponse of 150 mu s and photonically annealed devices on flexible polyimide with high photoresponsivity exceeding 50 mA/W. The photonically annealed photodetector also reduces the curing time to milliseconds and maintains functionality over 500 bending cycles.
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