[16p-M_B104-1~18] 12.4 Organic light-emitting devices, organic transistors, and flexible devices

5:00 PM - 5:15 PM JST(8:00 AM - 8:15 AM UTC)

[16p-M_B104-12] Theoretical Formula of Mobility Tensor for Organic Semiconductor Crystals Consistent with Hopping Path Continuity

〇Hiroyuki Matsui¹, Koki Ozawa^1,2 (1.ROEL, Yamagata Univ., 2.JSPS Research Fellow)

Keywords:

organic semiconductors,hopping theory,mobility

For calculating carrier mobility in organic semiconductor crystals based on hopping theory, Wen's formula has been widely used (S.-H. Wen et al., J. Phys. Chem. B 113, 8813-8819 (2009)). However, this formula suffers from two issues: it tends to overestimate mobility when the hopping pathways lack continuity, and it underestimates it due to the introduction of unnecessary coefficient P_i. In this study, we propose a theoretical formula for the mobility tensor that addresses these problems. To validate our approach, we compare and discuss our results with those obtained using Wen's formula, our proposed formula, kinetic Monte Carlo simulations, and numerical solutions of ordinary differential equations.