High-performance field emission device utilizing vertically aligned carbon nanotubes-based pillar architectures oleh Bipin Kumar Gupta, Garima Kedawat, Amit Kumar Gangwar, Kanika Nagpal, Pradeep Kumar Kashyap, Shubhda Srivastava, Satbir Singh, Pawan Kumar, Sachin R. Suryawanshi, Deok Min Seo, Prashant Tripathi, Mahendra A. More, O. N. Srivastava, Myung Gwan Hahm, Dattatray J. Late