In-situ analysis energy level alignment at solution processed HAT(CN) 6 /PVK (PVK:TAPC) interface via XPS and UPS

2017 ◽  
Vol 17 (8) ◽  
pp. 1094-1099 ◽  
Author(s):  
N.A. Talik ◽  
B.K. Yap ◽  
C.Y. Tan ◽  
T.J. Whitcher
Keyword(s):  
Energy Level ◽  
In Situ Analysis ◽  
Solution Processed ◽  
Energy Level Alignment

Energy level alignment in PCDTBT:PC70BM solar cells: Solution processed NiOx for improved hole collection and efficiency

2012 ◽  
Vol 13 (5) ◽  
pp. 744-749 ◽  
Author(s):  
Erin L. Ratcliff ◽  
Jens Meyer ◽  
K. Xerxes Steirer ◽  
Neal R. Armstrong ◽  
Dana Olson ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Solution Processed ◽  
Energy Level Alignment

Revealing unique energy level alignment at graphene/MoS2 2-dimensional layered junction using in situ ambient pressure x-ray photoelectron spectroscopy

2D Materials ◽  
2020 ◽  
Vol 7 (4) ◽  
pp. 045012
Author(s):  
Dong-Jin Yun ◽  
Ane Etxebarria ◽  
Kyung-Jae Lee ◽  
Minsu Seol ◽  
Hae-ryong Kim ◽  
...  
Keyword(s):  
Energy Level ◽  
Photoelectron Spectroscopy ◽  
Ambient Pressure ◽  
X Ray ◽  
Energy Level Alignment

Vapor Deposition of Perovskite Precursor PbI2 on Au and Graphite

MRS Advances ◽  
2020 ◽  
Vol 5 (8-9) ◽  
pp. 403-410
Author(s):  
Benjamin Ecker ◽  
Ke Wang ◽  
Yongli Gao
Keyword(s):  
Energy Level ◽  
Film Formation ◽  
Pyrolytic Graphite ◽  
Photoemission Spectroscopy ◽  
Photovoltaic Devices ◽  
Excessive Iodine ◽  
Energy Level Alignment ◽  
Perovskite Photovoltaic ◽  
Deposition Conditions

AbstractThe energy level alignment that occurs at the interfaces in planar-hetero structured perovskite photovoltaic devices strongly influences the charge transport across the interface, and thus plays a crucial role in overall device performance. To directly observe the energy level alignment requires pristine homogeneous surfaces that are free of contamination including adventitious carbon. Co-evaporation offers the ability to grow perovskite thin films in-situ, and the method involves thermally evaporating the perovskite precursors such as PbI2 and CH3NH3I. Early reports have shown that the perovskite film formation and stoichiometry are problematic at ultralow coverages. In particular, it was reported that there was excessive PbI2 and a deficiency in CH3NH3I. Using photoemission spectroscopy, we investigated the perovskite precursor PbI2 on gold and highly oriented pyrolytic graphite (HOPG) surfaces. Results show that the nature of the surface and the deposition conditions can strongly influence the film formation. Excessive iodine observed in the initial evaporation stages appears to be substrate dependent, and this may influence the overall energy level alignment.

Energy Level Alignment at Metal/Solution-Processed Organic Semiconductor Interfaces

2017 ◽  
Vol 29 (19) ◽  
pp. 1606901 ◽  
Author(s):  
Ainhoa Atxabal ◽  
Slawomir Braun ◽  
Thorsten Arnold ◽  
Xiangnan Sun ◽  
Subir Parui ◽  
...  
Keyword(s):  
Energy Level ◽  
Organic Semiconductor ◽  
Solution Processed ◽  
Metal Solution ◽  
Semiconductor Interfaces ◽  
Energy Level Alignment
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