Optical excitations in hexagonal nanonetwork materials
Optical excitations in hexagonal nanonetwork materials
复制标题
六方纳米网络材料中的光激发
DOI：
10.1134/1.1641907
复制
发表时间：
2002
影响因子：
1.1
通讯作者：
K. Harigaya
中科院分区：
文献类型：
--
作者：
K. Harigaya
Optical excitations in hexagonal nanonetwork materials, for example, Boron-Nitride (BN) sheets and nanotubes, are investigated theoretically. Exciton dipoles directed from the B site to the N site are considered along the BN bond. When the exciton hopping integral is restricted to the nearest neighbors, two flat bands of excitons appear. The symmetry of these exciton bands is optically forbidden. Possible relations to experiment are discussed.
