SLIDE 1
PVMD
Delft University of Technology
- Three recombination processes
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Shockley- Read-Hall Radiative Auger
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PVMD Ren van Swaaij Delft University of Technology Three - - PowerPoint PPT Presentation
PVMD Ren van Swaaij Delft University of Technology Three - - PowerPoint PPT Presentation
Recombination Processes Shockley-Read-Hall PVMD Ren van Swaaij Delft University of Technology Three recombination processes Shockley- Radiative Auger Read-Hall - - - - - - + + + Learning objectives Underlying mechanism
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SLIDE 3
Learning objectives
- Underlying mechanism of Shockley-Read-Hall
SLIDE 4
Learning objectives
- Underlying mechanism of Shockley-Read-Hall
- Conceptualize carrier traps and processes
SLIDE 5
Learning objectives
- Underlying mechanism of Shockley-Read-Hall
- Conceptualize carrier traps and processes
- Understand the recombination rate equation
SLIDE 6
Shockley-Read-Hall recombination
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SLIDE 7
Shockley-Read-Hall recombination
- Facilitated by impurities or
lattice defects
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SLIDE 8
Shockley-Read-Hall recombination
- Facilitated by impurities or
lattice defects
- Energy levels within bandgap
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SLIDE 9
Trap types
Occupied Unoccupied
SLIDE 10
Trap types
Donor-type Occupied Unoccupied
SLIDE 11
Trap types
Donor-type Occupied Unoccupied
SLIDE 12
Trap types
Donor-type Occupied Unoccupied +
SLIDE 13
Trap types
Acceptor-type Donor-type Occupied Unoccupied +
SLIDE 14
Trap types
Acceptor-type Donor-type Occupied Unoccupied +
SLIDE 15
Trap types
Acceptor-type Donor-type Occupied Unoccupied
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SLIDE 16
Carrier processes
SLIDE 17
Carrier processes
1.
- 1. Capture of electron
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SLIDE 18
Carrier processes
1. 2.
- 1. Capture of electron
- 2. Emission of electron
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SLIDE 19
Carrier processes
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1. 2.
- 1. Capture of electron
- 2. Emission of electron
- 3. Capture of hole
3.
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SLIDE 20
Carrier processes
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1. 2.
- 1. Capture of electron
- 2. Emission of electron
- 3. Capture of hole
- 4. Emission of hole
3. 4.
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SLIDE 21
Process rates
1. 2. 3. 4.
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SLIDE 22
Process rates
1. 2. 3. 4.
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SLIDE 23
Process rates
1. 2. 3. 4.
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Process rates
1. 2. 3. 4.
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SLIDE 25
Process rates
1. 2. 3. 4.
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SLIDE 26
Process rates
1. 2. 3. 4.
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SLIDE 27
Process rates
1. 2. 3. 4.
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SLIDE 28
Process rates
1. 2. 3. 4.
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SLIDE 29
Process rates
1. 2. 3. 4.
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SLIDE 30
Process rates
1. 2. 3. 4.
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SLIDE 31
Process rates
1. 2. 3. 4.
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SLIDE 32
Process rates
1. 2. 3. 4.
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SLIDE 33
Process rates
1. 2. 3. 4.
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SLIDE 34
Process rates
1. 2. 3. 4.
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SLIDE 35
Process rates
1. 2. 3. 4.
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SLIDE 36
Process rates
1. 2. 3. 4.
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SLIDE 37
Process rates
1. 2. 3. 4.
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SLIDE 38
Thermal velocity and capture cross-section
Trap state
SLIDE 39
Thermal velocity and capture cross-section
SLIDE 40
Thermal velocity and capture cross-section
SLIDE 41
Thermal velocity and capture cross-section
SLIDE 42
Thermal velocity and capture cross-section
SLIDE 43
Thermal velocity and capture cross-section
- Reach of trap
SLIDE 44
SRH recombination rate
SLIDE 45
SRH recombination rate
SLIDE 46
SRH recombination rate
SLIDE 47
SRH recombination rate
SLIDE 48
SRH recombination rate
SLIDE 49
SRH recombination rate
SLIDE 50
SRH recombination rate
n-type
SLIDE 51
SRH recombination rate
n-type
SLIDE 52
SRH recombination rate
n-type
SLIDE 53
SRH recombination rate
n-type
SLIDE 54
SRH recombination rate
n-type p-type
SLIDE 55
Recombination efficacy
Recombination efficacy Trap energy
SLIDE 56
Recombination efficacy
Recombination efficacy Trap energy
SLIDE 57
Recombination efficacy
Recombination efficacy Trap energy
SLIDE 58
Summary
SLIDE 59
Summary
Shockley- Read-Hall Radiative Auger
SLIDE 60
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Summary
Shockley- Read-Hall Radiative Auger
SLIDE 61
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