Skip to main content
I-V Curve Analysis
Back to SPECTRA-Lab
Current-Voltage Characterization
Comprehensive I-V analysis for diodes, transistors, and solar cells
Diode I-V
MOSFET Curves
Solar Cell
Parameter Extraction
Diode Parameters
Saturation Current (I₀) [A]
Ideality Factor (n)
1.50
Temperature [K]
300 K
Series Resistance [Ω]
Simulate
Extracted Parameters
0.026
Thermal Voltage (V)
0.65
Forward Voltage (V)
25.0
Dynamic Resistance (Ω)
0.15
Max Power (W)
I-V Characteristic
MOSFET Parameters
Threshold Voltage (Vth) [V]
Transconductance (K) [A/V²]
Channel Length Modulation (λ) [1/V]
Gate Voltage Range [V]
1-3 V
Generate Curves
Operating Regions
Region
Condition
Current
Cutoff
Vgs < Vth
Id ≈ 0
Linear
Vds < Vgs - Vth
Id = K[(Vgs-Vth)Vds - Vds²/2]
Saturation
Vds > Vgs - Vth
Id = K/2(Vgs-Vth)²(1+λVds)
Output Characteristics (Id vs Vds)
Solar Cell Parameters
Photocurrent (Iph) [A]
Irradiance [W/m²]
1000 W/m²
Cell Area [cm²]
Shunt Resistance [Ω]
Analyze
Performance Metrics
0.62
Voc (V)
35.0
Isc (mA)
0.78
Fill Factor
17.5
Efficiency (%)
0.52
Vmpp (V)
32.5
Impp (mA)
Solar Cell I-V and P-V Curves
Import Measurement Data
Paste I-V Data (V, I pairs)
Extract Parameters
Fitted Parameters
1.2e-12
I₀ (A)
1.45
Ideality (n)
12.5
Rs (Ω)
0.9987
R² Fit
Measured vs Fitted Curve