Abstract
A highly sensitive trap characterization technique based on wavelength- and polarization-resolved photocurrent excitation spectroscopy of single crystalline organic semiconductors is described. The method reveals that even a brief illumination of organic molecular crystals in an oxygen atmosphere triggers a long-term oxygen diffusion in the dark that results in formation of traps at depth scales comparable to the light penetration length.
| Original language | English |
|---|---|
| Pages (from-to) | 981-985 |
| Number of pages | 5 |
| Journal | Advanced Materials |
| Volume | 23 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Feb 22 2011 |
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Keywords
- charge transport
- organic field-effect transistors
- organic semiconductors
- oxygen diffusion
- photoconductivity
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
Cite this
Photon-assisted oxygen diffusion and oxygen-related traps in organic semiconductors. / Najafov, Hikmet; Mastrogiovanni, Daniel; Garfunkel, Eric; Feldman, Leonard C; Podzorov, Vitaly.
In: Advanced Materials, Vol. 23, No. 8, 22.02.2011, p. 981-985.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Photon-assisted oxygen diffusion and oxygen-related traps in organic semiconductors
AU - Najafov, Hikmet
AU - Mastrogiovanni, Daniel
AU - Garfunkel, Eric
AU - Feldman, Leonard C
AU - Podzorov, Vitaly
PY - 2011/2/22
Y1 - 2011/2/22
N2 - A highly sensitive trap characterization technique based on wavelength- and polarization-resolved photocurrent excitation spectroscopy of single crystalline organic semiconductors is described. The method reveals that even a brief illumination of organic molecular crystals in an oxygen atmosphere triggers a long-term oxygen diffusion in the dark that results in formation of traps at depth scales comparable to the light penetration length.
AB - A highly sensitive trap characterization technique based on wavelength- and polarization-resolved photocurrent excitation spectroscopy of single crystalline organic semiconductors is described. The method reveals that even a brief illumination of organic molecular crystals in an oxygen atmosphere triggers a long-term oxygen diffusion in the dark that results in formation of traps at depth scales comparable to the light penetration length.
KW - charge transport
KW - organic field-effect transistors
KW - organic semiconductors
KW - oxygen diffusion
KW - photoconductivity
UR - http://www.scopus.com/inward/record.url?scp=79951828042&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79951828042&partnerID=8YFLogxK
U2 - 10.1002/adma.201004239
DO - 10.1002/adma.201004239
M3 - Article
C2 - 21341311
AN - SCOPUS:79951828042
VL - 23
SP - 981
EP - 985
JO - Advanced Materials
JF - Advanced Materials
SN - 0935-9648
IS - 8
ER -