Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 1491-1496 |
| Seitenumfang | 6 |
| Fachzeitschrift | Journal of applied physics |
| Jahrgang | 79 |
| Ausgabenummer | 3 |
| Publikationsstatus | Veröffentlicht - 1 Feb. 1996 |
| Extern publiziert | Ja |
Abstract
The use of bias light is common practice today in photoconductance decay (PCD) measurements to analyze semiconductor samples with injection-level dependent recombination parameters (i.e., surface recombination velocity and/or bulk lifetime). Recently, it has been shown on theoretical grounds that the previously reported recombination parameters from light-biased PCD experiments are not the actual properties of the investigated sample, but so-called differential recombination parameters [R. Brendel, Appl. Phys. A 60, 523 (1995)]. In the present article the theory relevant to light-biased PCD measurements is discussed in detail and subsequently applied to monocrystalline silicon wafers with nitride and oxide passivated surfaces in order to verify the deviations between the differential and actual surface recombination velocities. Special emphasis is paid to the experimental fact that the injection level cannot be reduced below a minimum value due to signal-to-noise problems.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Allgemeine Physik und Astronomie
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in: Journal of applied physics, Jahrgang 79, Nr. 3, 01.02.1996, S. 1491-1496.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - On the data analysis of light-biased photoconductance decay measurements
AU - Aberle, Armin G.
AU - Schmidt, Jan
AU - Brendel, Rolf
PY - 1996/2/1
Y1 - 1996/2/1
N2 - The use of bias light is common practice today in photoconductance decay (PCD) measurements to analyze semiconductor samples with injection-level dependent recombination parameters (i.e., surface recombination velocity and/or bulk lifetime). Recently, it has been shown on theoretical grounds that the previously reported recombination parameters from light-biased PCD experiments are not the actual properties of the investigated sample, but so-called differential recombination parameters [R. Brendel, Appl. Phys. A 60, 523 (1995)]. In the present article the theory relevant to light-biased PCD measurements is discussed in detail and subsequently applied to monocrystalline silicon wafers with nitride and oxide passivated surfaces in order to verify the deviations between the differential and actual surface recombination velocities. Special emphasis is paid to the experimental fact that the injection level cannot be reduced below a minimum value due to signal-to-noise problems.
AB - The use of bias light is common practice today in photoconductance decay (PCD) measurements to analyze semiconductor samples with injection-level dependent recombination parameters (i.e., surface recombination velocity and/or bulk lifetime). Recently, it has been shown on theoretical grounds that the previously reported recombination parameters from light-biased PCD experiments are not the actual properties of the investigated sample, but so-called differential recombination parameters [R. Brendel, Appl. Phys. A 60, 523 (1995)]. In the present article the theory relevant to light-biased PCD measurements is discussed in detail and subsequently applied to monocrystalline silicon wafers with nitride and oxide passivated surfaces in order to verify the deviations between the differential and actual surface recombination velocities. Special emphasis is paid to the experimental fact that the injection level cannot be reduced below a minimum value due to signal-to-noise problems.
UR - http://www.scopus.com/inward/record.url?scp=0030087214&partnerID=8YFLogxK
U2 - 10.1063/1.360990
DO - 10.1063/1.360990
M3 - Article
AN - SCOPUS:0030087214
VL - 79
SP - 1491
EP - 1496
JO - Journal of applied physics
JF - Journal of applied physics
SN - 0021-8979
IS - 3
ER -