Author Affiliations

Jinyong Wang,^1,3 Yujing Ren,⁴ Baoshan Tang,³ Changcun Li,¹ Fucai Liu,¹ and Deen Gu^1,2

¹School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, PR China.

²State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 611731, PR China.

³Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore.

⁴Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117583, Singapore.