Simulates and analyzes rapid current decay transients using a tanh voltage profile protocol. Use when modeling current decay scenarios or time-of-flight measurements where capturing fast timescale transients (initial current rise at very short times) is critical for accurate analysis.
This skill implements a protocol for simulating current decay transients that captures both the long-term asymptotic behavior and the fast timescale dynamics that occur at very short times.
Apply this protocol when:
Hold the cell at applied bias φ = φ_bi = 40 for a sufficiently long time to eliminate all initial transients before starting the decay protocol.
Set up the voltage profile for the decay transient:
Apply the voltage profile:
φ(t) = φ_bi × [1 - tanh(β × t) / tanh(β × t_end)]
This creates a smooth but rapid decrease in applied bias starting at t=0.
Configure numerical parameters:
Run the simulation with the configured parameters to compute photocurrent as a function of time.
Compare the numerical photocurrent results to the asymptotic solution:
The key advantage of this protocol is its ability to resolve the fast transient dynamics at very short time scales while maintaining accuracy at longer times.3b:["$","$L44",null,{"content":"$45","frontMatter":{"name":"current-decay-transient-simulation","description":"Simulates and analyzes rapid current decay transients using a tanh voltage profile protocol. Use when modeling current decay scenarios or time-of-flight measurements where capturing fast timescale transients (initial current rise at very short times) is critical for accurate analysis."}}]