Marked improvement in the stability of small molecule organic photovoltaics by interfacial modification using self-assembled monolayers to prevent indium diffusion into the active layer

2013 ◽  
Vol 1 (11) ◽  
pp. 3680 ◽  
Author(s):  
Ming-Chung Chen ◽  
Yi-Shiang Chiou ◽  
Jian-Ming Chiu ◽  
Abebe Tedla ◽  
Yian Tai
2016 ◽  
Vol 20 (08n11) ◽  
pp. 1264-1271 ◽  
Author(s):  
Hanna Hakola ◽  
Essi Sariola-Leikas ◽  
Paavo Jäntti ◽  
Thomas Mokus ◽  
Kati Stranius ◽  
...  

Formation of self-assembled monolayers (SAMs) of three porphyrin and one phthalocyanine derivatives on thin ZnO film was studied by monitoring absorption spectra of the samples. The compounds were equipped with carboxylic or phosphate groups to bind to the surface. The SAM formation was found to be fast. The layer was formed in less than 15 min for all studied porphyrins, and 30 min was sufficient to form phthalocyanine layer. For porphyrins with different anchor groups the SAM formation was too fast to see any difference between the anchoring groups. The stability of SAMs was tested then by immersing the samples into neat solvents. Upon immersion the SAMs were gradually losing the absorbance for all the compounds with degradation trends being in line with p[Formula: see text] values of the binding groups of the same type. However, even for the weakest binding group the SAM was relatively stable after a few tens of minutes of washing, which was sufficient to remove physisorbed compounds but the SAM was essentially not destroyed. Comparison of SAMs on thin films with SAMs on ZnO nanorods and TiO2 nanoparticle films indicated the same fast layer formation but relatively weaker SAMs stability, showing 20–40% faster absorption losses during the washing.


ACS Nano ◽  
2020 ◽  
Vol 14 (2) ◽  
pp. 1445-1456 ◽  
Author(s):  
Christian M. Wolff ◽  
Laura Canil ◽  
Carolin Rehermann ◽  
Nguyen Ngoc Linh ◽  
Fengshuo Zu ◽  
...  

1997 ◽  
Vol 26 (8) ◽  
pp. 721-722 ◽  
Author(s):  
Haoli Zhang ◽  
He Xia ◽  
Hulin Li ◽  
Zhongfan Liu

ACS Nano ◽  
2020 ◽  
Vol 14 (11) ◽  
pp. 16156-16156
Author(s):  
Christian M. Wolff ◽  
Laura Canil ◽  
Carolin Rehermann ◽  
Nguyen Ngoc Linh ◽  
Fengshuo Zu ◽  
...  

2016 ◽  
Vol 4 (20) ◽  
pp. 7903-7913 ◽  
Author(s):  
Chih-Yu Chang ◽  
Yu-Chia Chang ◽  
Wen-Kuan Huang ◽  
Wen-Chi Liao ◽  
Hung Wang ◽  
...  

A promising approach towards highly efficient and stable large-area ITO-free perovskite solar cells is demonstrated by employing thiol-functionalized self-assembled monolayers as interfacial modification layers.


2004 ◽  
Vol 847 ◽  
Author(s):  
J. Soullier ◽  
P. Tordjeman ◽  
P. H. Mutin

ABSTRACTThe formation of octadecylphosphonic acid self-assembled monolayers (SAMs) on titanium deposited by cathodic sputtering on planar substrates has been studied by water contact angle measurements and Atomic Force Microscopy (AFM). Dense monolayers were obtained after one week of reaction. Tribological experiments indicated that these monolayers had good lubricating properties, which were maintained after immersion in a 1 M NaOH solution at 65 °C for up to 100 min. The stability in alkaline media of octadecylphosphonic acid SAMs on titanium was ascribed to the high chemical stability of Ti-O-P interfacial bonds.


2017 ◽  
Vol 46 (1) ◽  
pp. 40-71 ◽  
Author(s):  
Stefano Casalini ◽  
Carlo Augusto Bortolotti ◽  
Francesca Leonardi ◽  
Fabio Biscarini

SAMs on electrodes, dielectrics, and semiconductors enhance the stability and the response of organic electronic devices and enable the design of new experiments and device layouts.


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