Exploring novel p-n core/shell structure in single α-Fe2O3 nanorods of hierarchical hollow microspheres for ultrasensitive acetone gas sensor

Tran Khoa Dang, Nguyễn Đức Cường, Hồ Văn Minh Hải, Tran Quy Phuong, Lê Lâm Sơn, Dang Thi Thanh Nhan, Vo Van Tan, Mai Duy Hien, Ki‐Joon Jeon, Nguyễn Quang Hưng, Luu Anh Tuyen, Nguyễn Văn Hiếu