研究目的
Theoretically investigate the effect of an external in-plane electric field on neutral and charged exciton states in two-dimensional materials.
研究成果
The study demonstrates that excitons and trions in 2D materials are robust against high electric fields, with trions in monolayer phosphorene being especially stable. A fourth order Stark shift is observed for trions, indicating significant hyperpolarizability. These findings suggest potential applications in optoelectronic devices and energy transfer technologies.
研究不足
The study is theoretical and relies on numerical simulations. Experimental verification is needed to confirm the findings. The robustness of trions under high electric fields is demonstrated, but practical applications may require further investigation into material-specific responses.