Concentration dependence of the transport energy level for charge carriers in organic semiconductors

2010 ◽  
Vol 97 (14) ◽  
pp. 143302 ◽  
Author(s):  
J. O. Oelerich ◽  
D. Huemmer ◽  
M. Weseloh ◽  
S. D. Baranovskii
Keyword(s):  
Energy Level ◽  
Concentration Dependence ◽  
Organic Semiconductors ◽  
Charge Carriers

scholarly journals Energy disorder and energy level alignment between host and dopant in organic semiconductors

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Peicheng Li ◽  
Grayson Ingram ◽  
Jae-Jin Lee ◽  
Yongbiao Zhao ◽  
Zheng-Hong Lu
Keyword(s):  
Energy Level ◽  
Organic Semiconductors ◽  
Energy Disorder ◽  
Energy Level Alignment

Carrier concentration dependence of the mobility in organic semiconductors

2007 ◽  
Vol 157 (4-5) ◽  
pp. 243-246 ◽  
Author(s):  
Ling Li ◽  
Gregor Meller ◽  
Hans Kosina
Keyword(s):  
Carrier Concentration ◽  
Concentration Dependence ◽  
Organic Semiconductors

scholarly journals Molecular Doping in Multi-Molecule Polymer-Dopant Complexes Shows Reduced Coulomb Binding

2020 ◽  
Author(s):  
Chuanding Dong ◽  
Stefan Schumacher
Keyword(s):  
Charge Transfer ◽  
Organic Semiconductors ◽  
Positive Charge ◽  
Charge Carriers ◽  
Mechanistic Study ◽  
Charge Transfer Complexes ◽  
Mobile Charge ◽  
Molecular Doping ◽  
Gap States ◽  
P Type

<p>The mechanistic study of molecular doping of organic semiconductors (OSC) requires</p><p>an improved understanding of the role and formation of integer charge transfer complexes</p><p>(ICTC) on a microscopic level. In the present work we go one crucial step beyond</p><p>the simplest scenario of an isolated bi-molecular ICTC and study ICTCs formed of</p><p>up to two (poly[2,6-(4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b,3,4-b”]dithiophene)-alt-4,7-(2,1,3-</p><p>benzothiadiazole)](PCPDT-BT) oligomers and up to two CN6-CP molecules. We find that depending</p><p>on geometric arrangement, complexes containing two conjugated oligomers and two</p><p>dopant molecules can show p-type doping with double integer charge transfer, resulting in either</p><p>two singly doped oligomers or one doubly doped oligomer. Interestingly, compared to an individual</p><p>oligomer-dopant complex, the resulting in-gap states on the doped oligomers are significantly</p><p>lowered in energy. Indicating that, already in the relatively small systems studied here, Coulomb</p><p>binding of the doping-induced positive charge to the counter-ion is reduced which is an elemental</p><p>step towards generating mobile charge carriers through molecular doping.</p>

scholarly journals Molecular Doping in Multi-Molecule Polymer-Dopant Complexes Shows Reduced Coulomb Binding

2020 ◽  
Author(s):  
Chuanding Dong ◽  
Stefan Schumacher
Keyword(s):  
Charge Transfer ◽  
Organic Semiconductors ◽  
Positive Charge ◽  
Charge Carriers ◽  
Mechanistic Study ◽  
Charge Transfer Complexes ◽  
Mobile Charge ◽  
Molecular Doping ◽  
Gap States ◽  
P Type

<p>The mechanistic study of molecular doping of organic semiconductors (OSC) requires</p><p>an improved understanding of the role and formation of integer charge transfer complexes</p><p>(ICTC) on a microscopic level. In the present work we go one crucial step beyond</p><p>the simplest scenario of an isolated bi-molecular ICTC and study ICTCs formed of</p><p>up to two (poly[2,6-(4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b,3,4-b”]dithiophene)-alt-4,7-(2,1,3-</p><p>benzothiadiazole)](PCPDT-BT) oligomers and up to two CN6-CP molecules. We find that depending</p><p>on geometric arrangement, complexes containing two conjugated oligomers and two</p><p>dopant molecules can show p-type doping with double integer charge transfer, resulting in either</p><p>two singly doped oligomers or one doubly doped oligomer. Interestingly, compared to an individual</p><p>oligomer-dopant complex, the resulting in-gap states on the doped oligomers are significantly</p><p>lowered in energy. Indicating that, already in the relatively small systems studied here, Coulomb</p><p>binding of the doping-induced positive charge to the counter-ion is reduced which is an elemental</p><p>step towards generating mobile charge carriers through molecular doping.</p>

Photoinduced Energy-Level Realignment at Interfaces between Organic Semiconductors and Metal-Halide Perovskites

2021 ◽  
Vol 127 (24) ◽  
Author(s):  
Fengshuo Zu ◽  
Jonathan H. Warby ◽  
Martin Stolterfoht ◽  
Jinzhao Li ◽  
Dongguen Shin ◽  
...  
Keyword(s):  
Energy Level ◽  
Organic Semiconductors ◽  
Metal Halide ◽  
Halide Perovskites
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