Tribotronic Enhanced Photoresponsivity of a MoS(2) Phototransistor.
Tribotronic Enhanced Photoresponsivity of a MoS(2) Phototransistor.
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MoS2 光电晶体管的 Tribotronic 增强光响应性
DOI:
10.1002/advs.201500419
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发表时间:
2016-06
期刊:
影响因子:
15.1
通讯作者:
Wang, Zhong Lin
中科院分区:
文献类型:
--
作者:
Pang, Yaokun;Xue, Fei;Wang, Longfei;Chen, Jian;Luo, Jianjun;Jiang, Tao;Zhang, Chi;Wang, Zhong Lin
Molybdenum disulfide (MoS2) has attracted a great attention as an excellent 2D material for future optoelectronic devices. Here, a novel MoS2 tribotronic phototransistor is developed by a conjunction of a MoS2 phototransistor and a triboelectric nanogenerator (TENG) in sliding mode. When an external friction layer produces a relative sliding on the device, the induced positive charges on the back gate of the MoS2 phototransistor act as a “gate” to increase the channel conductivity as the traditional back gate voltage does. With the sliding distance increases, the photoresponsivity of the device is drastically enhanced from 221.0 to 727.8 A W−1 at the 100 mW cm−2 UV excitation intensity and 1 V bias voltage. This work has extended the emerging tribotronics to the field of photodetection based on 2D material, and demonstrated a new way to realize the adjustable photoelectric devices with high photoresponsivity via human interfacing.
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