Comparing the backfilling of mesoporous titania thin films with hole conductors of different sizes sharing the same mass density

IUCrJ
Raphael S MärklPeter Müller-Buschbaum

Abstract

Efficient infiltration of a mesoporous titania matrix with conducting organic polymers or small molecules is one key challenge to overcome for hybrid photovoltaic devices. A quantitative analysis of the backfilling efficiency with time-of-flight grazing incidence small-angle neutron scattering (ToF-GISANS) and scanning electron microscopy (SEM) measurements is presented. Differences in the morphology due to the backfilling of mesoporous titania thin films are compared for the macromolecule poly[4,8-bis-(5-(2-ethyl-hexyl)-thio-phen-2-yl)benzo[1,2-b;4,5-b']di-thio-phene-2,6-diyl-alt-(4-(2-ethyl-hexyl)-3-fluoro-thieno[3,4-b]thio-phene-)-2-carboxyl-ate-2-6-diyl)] (PTB7-Th) and the heavy-element containing small molecule 2-pinacol-boronate-3-phenyl-phen-anthro[9,10-b]telluro-phene (PhenTe-BPinPh). Hence, a 1.7 times higher backfilling efficiency of almost 70% is achieved for the small molecule PhenTe-BPinPh compared with the polymer PTB7-Th despite sharing the same volumetric mass density. The precise characterization of structural changes due to backfilling reveals that the volumetric density of backfilled materials plays a minor role in obtaining good backfilling efficiencies and interfaces with large surface contact.

References

Mar 10, 2004·The European Physical Journal. E, Soft Matter·P Müller-Buschbaum
Jul 21, 2006·The Journal of Physical Chemistry. B·Kesong LiuBaifu Xin
Jan 1, 1995·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·J C YenS Chang
Nov 19, 2010·Physical Chemistry Chemical Physics : PCCP·Ana PrimoHermenegildo García
Oct 22, 2008·Nanotechnology·Henry J SnaithMichael Grätzel
Aug 17, 2012·Nature·Michael GraetzelEdward H Sargent
Jan 1, 2013·ACS Applied Materials & Interfaces·Monika RawollePeter Müller-Buschbaum
Apr 17, 2013·Particle and Fibre Toxicology·Hongbo ShiJinshun Zhao
Nov 2, 2014·Chemical Communications : Chem Comm·Gang HeEric Rivard
Apr 8, 2016·Chemical Reviews·Tao LiByeongdu Lee
Aug 11, 2018·Science·Lingxian MengYongsheng Chen

❮ Previous
Next ❯

Citations


❮ Previous
Next ❯

Methods Mentioned

BETA
X-ray
small-angle neutron scattering
wavelength-resolved neutron scattering
neutron scattering
optical microscopy

Software Mentioned

ToF
DPDAK
GISANS
MOTOFIT
SmartSEM
ImageJ

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry
Seung-Yong JungC Patrick Collier
European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery
S Rajagopalan, D Wells
© 2021 Meta ULC. All rights reserved