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Excess Carrier Concentration Formula

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Excess Carrier Concentration is extra of electron present in the carrier concentration. Check FAQs

δ n = g op \cdot τ n

δ_n - Excess Carrier Concentration?g_op - Optical Generation Rate?τ_n - Recombination Lifetime?

Excess Carrier Concentration Example

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Here is how the Excess Carrier Concentration equation looks like with Values.

Here is how the Excess Carrier Concentration equation looks like with Units.

Here is how the Excess Carrier Concentration equation looks like.

1E+14 = 2.9E+19 \cdot 3.6E-6

1E+141/m³ = 2.9E+19 \cdot 3.6E-6s

1E+14 = 2.9E+19 \cdot 3.6E-6

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Excess Carrier Concentration Solution

Follow our step by step solution on how to calculate Excess Carrier Concentration?

FIRST Step Consider the formula

δ n = g op \cdot τ n

Next Step Substitute values of Variables

∴

δ n = 2.9E+19 \cdot 3.6E-6s

Next Step Prepare to Evaluate

∴

δ n = 2.9E+19 \cdot 3.6E-6

Next Step Evaluate

∴

δ n = 1049800000000001/m³

LAST Step Rounding Answer

∴

δ n = 1E+141/m³

Excess Carrier Concentration Formula Elements

Variables

Excess Carrier Concentration

Excess Carrier Concentration is extra of electron present in the carrier concentration.

Symbol: δ_n

Measurement: Carrier ConcentrationUnit: 1/m³

Note: Value should be greater than 0.

Formulas to find Excess Carrier Concentration

Optical Generation Rate

Optical Generation Rate the number of electrons generated at each point in the device due to the absorption of photons.

Symbol: g_op

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Optical Generation Rate

Recombination Lifetime

Recombination Lifetime the average time it takes an excess minority carrier to recombine.

Symbol: τ_n

Measurement: TimeUnit: s

Note: Value should be greater than 0.

Formulas to find Recombination Lifetime

Other formulas in Energy Band and Charge Carrier category

Go Distribution Coefficient

k d = \frac{C solid}{C L}

Go Photoelectron Energy

E photo = [hP] \cdot f

Go Fermi Function

f E = \frac{n 0}{N c}

Go Conduction Band Energy

E c = E g + E v

How to Evaluate Excess Carrier Concentration?

Excess Carrier Concentration evaluator uses Excess Carrier Concentration = Optical Generation Rate*Recombination Lifetime to evaluate the Excess Carrier Concentration, The Excess Carrier Concentration formula is defined as The number of majority carriers per unit volume, expressed in dimensionless units such as percentage, parts per million, or parts per billion. Excess Carrier Concentration is denoted by δ_n symbol.

How to evaluate Excess Carrier Concentration using this online evaluator? To use this online evaluator for Excess Carrier Concentration, enter Optical Generation Rate (g_op) & Recombination Lifetime (τ_n) and hit the calculate button.

FAQs on Excess Carrier Concentration

What is the formula to find Excess Carrier Concentration?

The formula of Excess Carrier Concentration is expressed as Excess Carrier Concentration = Optical Generation Rate*Recombination Lifetime. Here is an example- 1E+14 = 2.9E+19*3.62E-06.

How to calculate Excess Carrier Concentration?

With Optical Generation Rate (g_op) & Recombination Lifetime (τ_n) we can find Excess Carrier Concentration using the formula - Excess Carrier Concentration = Optical Generation Rate*Recombination Lifetime.

Can the Excess Carrier Concentration be negative?

No, the Excess Carrier Concentration, measured in Carrier Concentration cannot be negative.

Which unit is used to measure Excess Carrier Concentration?

Excess Carrier Concentration is usually measured using the 1 per Cubic Meter[1/m³] for Carrier Concentration. 1 per Cubic Centimeter[1/m³], per Liter[1/m³] are the few other units in which Excess Carrier Concentration can be measured.

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Excess Carrier Concentration Formula

Excess Carrier Concentration Example

Excess Carrier Concentration Solution

Excess Carrier Concentration Formula Elements

Other formulas in Energy Band and Charge Carrier category

How to Evaluate Excess Carrier Concentration?

FAQs on Excess Carrier Concentration

Variable Name