研究目的
Investigating the influence of film morphology on the broadening of the time-of-flight transient photo-current pulse in organic thin films using Monte Carlo simulation.
研究成果
The study demonstrates the exclusive influence of morphology dependent carrier diffusion on TOF current pulse, highlighting the need to consider film morphology while modeling TOF current pulses for extracting materials parameters. It also asserts the relevance of morphology dependent carrier diffusion in understanding the physics behind organic photonic devices.
研究不足
The study is limited to the simulation of organic thin films and does not include experimental validation. The influence of other factors such as temperature and electric field on the TOF current pulse shape is not extensively explored.
1：Experimental Design and Method Selection:
Monte Carlo simulation is used to investigate the influence of film morphology on the time-of-flight transient photo-current pulse shape in homogeneous and inhomogeneous organic thin films by varying the overall energetic disorder.
2：Sample Selection and Data Sources:
A 3D array with size 70 × 70 × 10000 along x, y and z directions is considered as the lattice for simulation.
3：List of Experimental Equipment and Materials:
The simulation is based on the commonly used algorithm reported earlier, developed in house using FORTRAN.
4：Experimental Procedures and Operational Workflow:
The simulation involves varying the concentration of ordered regions inside the host lattice to study the effect on the TOF current pulse shape.
5：Data Analysis Methods:
The value of the tail broadening parameter (W) is calculated from the simulated TOF current pulses to analyze the influence of film morphology and energetic disorder.
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