Heterodimers formed through a partial anionic exchange process: scanning tunneling spectroscopy to monitor bands across the junction vis-à-vis photoinduced charge separation

Nanoscale ◽  
2015 ◽  
Vol 7 (41) ◽  
pp. 17366-17374 ◽  
Author(s):  
Abhijit Bera ◽  
Sudip K. Saha ◽  
Amlan J. Pal
Keyword(s):  
Charge Separation ◽  
Exchange Process ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Depletion Region ◽  
Separation Process ◽  
Scanning Tunneling ◽  
Anionic Exchange ◽  
Photoinduced Charge Separation ◽  
Photoinduced Charge

With a control over the duration of an anionic exchange process, bulk|dot, bulk|bulk, and dot|bulk phases of CdS|CdTe heterodimers were formed. The depletion region had a direct correlation with the photoinduced charge separation process in the heterodimers.

scholarly journals Photoinduced Charge Separation Process of Porphyrin in Liposomal Membrane

1984 ◽  
pp. 345-353
Author(s):  
Hiroaki KOMATSU ◽  
Keiko TOGAWA ◽  
Kiyoyuki WATANABE ◽  
Takashi KATSU ◽  
Yuzaburo FUJITA
Keyword(s):  
Charge Separation ◽  
Separation Process ◽  
Liposomal Membrane ◽  
Photoinduced Charge Separation ◽  
Photoinduced Charge

Improving the Efficiency of the Photoinduced Charge-Separation Process in a Rhenium(I)–Zinc Porphyrin Dyad by Simple Chemical Functionalization

2013 ◽  
Vol 52 (6) ◽  
pp. 3190-3197 ◽  
Author(s):  
Teresa Gatti ◽  
Paolo Cavigli ◽  
Ennio Zangrando ◽  
Elisabetta Iengo ◽  
Claudio Chiorboli ◽  
...  
Keyword(s):  
Charge Separation ◽  
Separation Process ◽  
Zinc Porphyrin ◽  
Chemical Functionalization ◽  
Simple Chemical ◽  
Photoinduced Charge Separation ◽  
Photoinduced Charge

Scanning-tunneling spectroscopy on conjugated polymer films

2003 ◽  
Vol 771 ◽  
Author(s):  
M. Kemerink ◽  
S.F. Alvarado ◽  
P.M. Koenraad ◽  
R.A.J. Janssen ◽  
H.W.M. Salemink ◽  
...  
Keyword(s):  
Polymer Films ◽  
Conjugated Polymer ◽  
Three Dimensional ◽  
Field Enhancement ◽  
Direct Consequence ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Band Alignment ◽  
Scanning Tunneling ◽  
Order Of Magnitude

AbstractScanning-tunneling spectroscopy experiments have been performed on conjugated polymer films and have been compared to a three-dimensional numerical model for charge injection and transport. It is found that field enhancement near the tip apex leads to significant changes in the injected current, which can amount to more than an order of magnitude, and can even change the polarity of the dominant charge carrier. As a direct consequence, the single-particle band gap and band alignment of the organic material can be directly obtained from tip height-voltage (z-V) curves, provided that the tip has a sufficiently sharp apex.

Anionic Fluorinated Zn-porphyrin Combined with Cationic Endohedral Li-fullerene for Long-Lived Photoinduced Charge Separation with Low Energy Loss

2021 ◽  
Vol 125 (3) ◽  
pp. 918-925
Author(s):  
Kazuhira Miwa ◽  
Shinobu Aoyagi ◽  
Takahiro Sasamori ◽  
Hiroshi Ueno ◽  
Hiroshi Okada ◽  
...  
Keyword(s):  
Energy Loss ◽  
Charge Separation ◽  
Low Energy ◽  
Photoinduced Charge Separation ◽  
Photoinduced Charge

Photoinduced charge separation in microporous and mesoporous materials

2011 ◽  
Vol 89 (3) ◽  
pp. 257-265 ◽  
Author(s):  
Ranjit T. Koodali
Keyword(s):  
Mesoporous Materials ◽  
Charge Separation ◽  
Organic Molecules ◽  
Microporous Materials ◽  
Photoinduced Charge Separation ◽  
Photoinduced Charge ◽  
Mcm 41

A review of photoinduced charge separation of organic molecules in microporous and mesoporous materials is presented. In particular, the photoionization of N-alkylphenothiazine (PCn), N,N,N′,N′-tetramethylbenzidine (TMB), and porphyrin in microporous materials, such as zeolites, aluminophosphates (AlPOs), silicoaluminophosphates (SAPOs), and mesoporous materials, such as MCM-41, MCM-48, and SBA-15, is discussed.

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