Negative differential resistance and hysteresis in graphene-based organic light-emitting devices

Qin Zhang, Shufen Chen, Shuai Zhang, Wenjuan Shang, Lihui Liu, Minghao Wang, Hongtao Yu, Lingling Deng, Guangqin Qi, Laiyuan Wang, Sanyang Han, Bo Hu, Qi Kang, Yuejiao Liu, Mingdong Yi, Yanwen Ma, Wenjing Yang, Jing Feng, Xiaogang Liu, Hongbo SunWei Huang