Photoelectrochemical scanning droplet cell microscopy for localized photovoltaic investigations on organic semiconductors

2014 ◽  
Vol 16 (8) ◽  
pp. 3739 ◽  
Author(s):  
Jacek Gasiorowski ◽  
Jan Philipp Kollender ◽  
Kurt Hingerl ◽  
Niyazi Serdar Sariciftci ◽  
Andrei Ionut Mardare ◽  
...  
Keyword(s):  
Organic Semiconductors ◽  
Cell Microscopy ◽  
Scanning Droplet Cell

scholarly journals Photoelectrochemical and Electrochemical Characterization of Sub-Micro-Gram Amounts of Organic Semiconductors Using Scanning Droplet Cell Microscopy

2014 ◽  
Vol 118 (30) ◽  
pp. 16919-16926 ◽  
Author(s):  
Jan Philipp Kollender ◽  
Jacek Gasiorowski ◽  
Niyazi S. Sariciftci ◽  
Andrei I. Mardare ◽  
Achim Walter Hassel
Keyword(s):  
Organic Semiconductors ◽  
Electrochemical Characterization ◽  
Cell Microscopy ◽  
Scanning Droplet Cell

scholarly journals Electrocatalysis on copper–palladium alloys for amperometric formaldehyde sensing

RSC Advances ◽  
2017 ◽  
Vol 7 (10) ◽  
pp. 6031-6039 ◽  
Author(s):  
Isabella Pötzelberger ◽  
Cezarina Cela Mardare ◽  
Lisa Maria Uiberlacker ◽  
Sabine Hild ◽  
Andrei Ionut Mardare ◽  
...  
Keyword(s):  
Thin Film ◽  
Electrocatalytic Oxidation ◽  
Combinatorial Library ◽  
Amperometric Sensor ◽  
Palladium Alloys ◽  
Formaldehyde Sensing ◽  
Cell Microscopy ◽  
Scanning Droplet Cell

A co-evaporated Cu–Pd thin film combinatorial library was screened for electrocatalytic oxidation of formaldehyde by scanning droplet cell microscopy. The best activity was found for 7.5 at% Pd and an amperometric sensor was fabricated and tested.

Photoelectrochemical Scanning Droplet Cell Microscopy (PE-SDCM)

ChemPhysChem ◽  
2013 ◽  
Vol 14 (3) ◽  
pp. 560-567 ◽  
Author(s):  
Jan Philipp Kollender ◽  
Andrei Ionut Mardare ◽  
Achim Walter Hassel
Keyword(s):  
Cell Microscopy ◽  
Scanning Droplet Cell

Multi-Scanning Droplet Cell Microscopy (multi-SDCM) for truly parallel high throughput electrochemical experimentation

2015 ◽  
Vol 179 ◽  
pp. 32-37 ◽  
Author(s):  
Jan Philipp Kollender ◽  
Andrei Ionut Mardare ◽  
Achim Walter Hassel
Keyword(s):  
High Throughput ◽  
Cell Microscopy ◽  
Scanning Droplet Cell

Surface patterned dielectrics by direct writing of anodic oxides using scanning droplet cell microscopy

2013 ◽  
Vol 113 ◽  
pp. 755-761 ◽  
Author(s):  
Christian M. Siket ◽  
Andrei Ionut Mardare ◽  
Martin Kaltenbrunner ◽  
Siegfried Bauer ◽  
Achim Walter Hassel
Keyword(s):  
Direct Writing ◽  
Cell Microscopy ◽  
Scanning Droplet Cell

Scanning droplet cell microscopy on a wide range hafnium–niobium thin film combinatorial library

2013 ◽  
Vol 110 ◽  
pp. 539-549 ◽  
Author(s):  
Andrei Ionut Mardare ◽  
Alfred Ludwig ◽  
Alan Savan ◽  
Achim Walter Hassel
Keyword(s):  
Thin Film ◽  
Combinatorial Library ◽  
Wide Range ◽  
Cell Microscopy ◽  
Scanning Droplet Cell

Energetic Control of Redox-Active Polymers Towards Safe Organic Bioelectronic Materials

2019 ◽  
Author(s):  
Alexander Giovannitti ◽  
Reem B. Rashid ◽  
Quentin Thiburce ◽  
Bryan D. Paulsen ◽  
Camila Cendra ◽  
...  
Keyword(s):  
Molecular Oxygen ◽  
Organic Semiconductors ◽  
Side Reaction ◽  
Semiconducting Polymers ◽  
Side Reactions ◽  
Redox Active ◽  
Donor Acceptor ◽  
Electrochemical Devices ◽  
Biological Environment ◽  
Device Operation

<p>Avoiding faradaic side reactions during the operation of electrochemical devices is important to enhance the device stability, to achieve low power consumption, and to prevent the formation of reactive side‑products. This is particularly important for bioelectronic devices which are designed to operate in biological systems. While redox‑active materials based on conducting and semiconducting polymers represent an exciting class of materials for bioelectronic devices, they are susceptible to electrochemical side‑reactions with molecular oxygen during device operation. We show that this electrochemical side reaction yields hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), a reactive side‑product, which may be harmful to the local biological environment and may also accelerate device degradation. We report a design strategy for the development of redox-active organic semiconductors based on donor-acceptor copolymers that prevent the formation of H<sub>2</sub>O<sub>2</sub> during device operation. This study elucidates the previously overlooked side-reactions between redox-active conjugated polymers and molecular oxygen in electrochemical devices for bioelectronics, which is critical for the operation of electrolyte‑gated devices in application-relevant environments.</p>

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