Research Output per year
One of the major barriers in the way of developing high-performance graphene-based photodetector is the low and wavelength-independent light absorption by graphene. In this regard, the schemes that adopt a heterogeneous integration of graphene and light sensitive materials are considered to hold the promise. However, to realize large-area heterogenous integration itself is not easy as some of the micro/nanofabrication steps are known to degrade the quality of graphene. This work demonstrates the successful integration of graphene-ZnO nanowires (NWs) over 4 cm2 with a facile and cost-effective method. The as-fabricated graphene-ZnO hybrid film can function as an ultraviolet (UV) photodetector (PD) with a high performance and good uniformity over large-area. The huge sensitivity of ZnO NWs to UV light, combined with the high carrier mobility of graphene, enable the UV PD with a photoresponse up to 2100 A/W, and fast response times down to millisecond.
|Number of pages||4|
|Publication status||Published - 27 Dec 2018|
|Event||IEEE Sensors Conference 2018 - Pullman New Delhi Aerocity, New Delhi, India|
Duration: 28 Oct 2018 → 31 Oct 2018
|Conference||IEEE Sensors Conference 2018|
|Abbreviated title||IEEE Sensors 2018|
|Period||28/10/18 → 31/10/18|
- ZnO NW
- heterogeneous integration
- large-area electronics
García Núñez, C. & Dahiya, R., 3 Apr 2019, In : Advanced Science. 6, 7, 13 p., 1802251.
Research output: Contribution to journal › Article
Liu, F., Yogeswaran, N., García Núñez, C., Gregory, D., & Dahiya, R. (2018). Graphene-ZnO NWs hybrid film for large-area UV photodetector. Poster session presented at IEEE Sensors Conference 2018, New Delhi, India. https://doi.org/10.1109/ICSENS.2018.8589639