Amide Additives Induced a Fermi Level Shift To Improve the Performance of Hole-Conductor-Free, Printable Mesoscopic Perovskite Solar Cells

2019 ◽  
Vol 10 (21) ◽  
pp. 6865-6872 ◽  
Author(s):  
Shuang Liu ◽  
Sheng Li ◽  
Jiawen Wu ◽  
Qifei Wang ◽  
Yue Ming ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fermi Level ◽  
Perovskite Solar Cells ◽  
Level Shift ◽  
Fermi Level Shift

Doping Effect on Chloroindium Phthalocyanine (ClInPc)/C60 Solar Cells

2012 ◽  
Vol 1390 ◽  
Author(s):  
Weining Wang ◽  
Neal Armstrong
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Fermi Level ◽  
Cell Structure ◽  
Short Circuit ◽  
Level Shift ◽  
Semiconductor Interface ◽  
Solar Cell Performance ◽  
Fermi Level Shift ◽  
Inorganic Semiconductor

ABSTRACTFor inorganic semiconductor solar cells, controlled doping is important because it can cause Fermi level shift of the inorganic semiconductor and achieve ohmic contact at the metal-semiconductor interface. In this paper we show that doping can also be used to shift Fermi level in organic semiconductors and cause changes in solar cell performance. We have made chloroindium phthalocyanine (ClInPc)/C60 heterojunction solar cells, where tetrafluoro-teracyano-quinodimethane (F4-TCNQ) is used to dope ClInPc layer. Ultraviolet photoemission spectroscopy (UPS) is used to investigate the ITO/ClInPc interfaces. The result shows that doping causes a Fermi level shift at the ITO/ClInPc interface as it does for inorganic semiconductors. As the doping increases, dark saturation current J0 of the solar cell increases, while open-circuit voltage Voc, short-circuit current Jsc and fill factor decreases. As a result, the efficiency of the solar cell decreases as doping increases. More UPS studies on ClInPc (doped with F4TCNQ)/C60 junction are needed to correlate the energy band diagram of the whole solar cell structure with the J-V characteristics.

scholarly journals On the Relation between the Open‐Circuit Voltage and Quasi‐Fermi Level Splitting in Efficient Perovskite Solar Cells

2019 ◽  
Vol 9 (33) ◽  
pp. 1901631 ◽  
Author(s):  
Pietro Caprioglio ◽  
Martin Stolterfoht ◽  
Christian M. Wolff ◽  
Thomas Unold ◽  
Bernd Rech ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fermi Level ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Quasi Fermi Level ◽  
Level Splitting

scholarly journals Ion Movement Explains Huge V OC Increase despite Almost Unchanged Internal Quasi‐Fermi‐Level Splitting in Planar Perovskite Solar Cells

2021 ◽  
pp. 2001104
Author(s):  
Jan Herterich ◽  
Moritz Unmüssig ◽  
Georgios Loukeris ◽  
Markus Kohlstädt ◽  
Uli Würfel
Keyword(s):  
Solar Cells ◽  
Fermi Level ◽  
Perovskite Solar Cells ◽  
Ion Movement ◽  
Quasi Fermi Level ◽  
Level Splitting

Contribution of the Fermi Level Shift to the Low Temperature Magnetoresistance in α-Si:H

1982 ◽  
Vol 113 (1) ◽  
pp. K39-K42 ◽  
Author(s):  
P. Kuivalainen ◽  
J. Heleskivi ◽  
M. Leppihalme
Keyword(s):  
Low Temperature ◽  
Fermi Level ◽  
Level Shift ◽  
Fermi Level Shift

Quantification of spatial inhomogeneity in perovskite solar cells by hyperspectral luminescence imaging

2016 ◽  
Vol 9 (7) ◽  
pp. 2286-2294 ◽  
Author(s):  
Gilbert El-Hajje ◽  
Cristina Momblona ◽  
Lidón Gil-Escrig ◽  
Jorge Ávila ◽  
Thomas Guillemot ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fermi Level ◽  
Hyperspectral Imaging ◽  
Perovskite Solar Cells ◽  
Spatial Inhomogeneity ◽  
Luminescence Imaging ◽  
Quasi Fermi Level ◽  
Level Splitting ◽  
Spatial Inhomogeneities

Perovskite solar cells are analyzed by photo- and electroluminescence hyperspectral imaging. Significant spatial inhomogeneities in the quasi-Fermi level splitting are observed.

Fermi Level Shift in Photoconductive Organic Pigment Films Measured by Kelvin Vibrating Capacitor Method

1995 ◽  
Vol 34 (Part 1, No. 7B) ◽  
pp. 3803-3807 ◽  
Author(s):  
Masahiro Hiramoto ◽  
Kiyoaki Ihara ◽  
Masaaki Yokoyama
Keyword(s):  
Fermi Level ◽  
Level Shift ◽  
Organic Pigment ◽  
Fermi Level Shift
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