PMID- 37444989
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230718
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 16
IP  - 13
DP  - 2023 Jun 28
TI  - Synthesis and DC Electrical Conductivity of Nanocomposites Based on 
      Poly(1-vinyl-1,2,4-triazole) and Thermoelectric Tellurium Nanoparticles.
LID - 10.3390/ma16134676 [doi]
LID - 4676
AB  - In this work, the structural characteristics and DC electrical conductivity of 
      firstly synthesized organic-inorganic nanocomposites of thermoelectric Te(0) 
      nanoparticles (1.4, 2.8, 4.3 wt%) and poly(1-vinyl-1,2,4-triazole) (PVT) were 
      analyzed. The composites were characterized by high-resolution transmission 
      electron microscopy, X-ray diffractometry, UV-Vis spectroscopy, and dynamic light 
      scattering analysis. The study results showed that the nanocomposite 
      nanoparticles distributed in the polymer matrix had a shape close to spherical 
      and an average size of 4-18 nm. The average size of the nanoparticles was 
      determined using the Brus model relation. The optical band gap applied in the 
      model was determined on the basis of UV-Vis data by the Tauc method and the 10% 
      absorption method. The values obtained varied between 2.9 and 5.1 nm. These 
      values are in good agreement with the values of the nanoparticle size, which are 
      typical for their fractions presented in the nanocomposite. The characteristic 
      sizes of the nanoparticles in the fractions obtained from the Pesika size 
      distribution data were 4.6, 4.9, and 5.0 nm for the nanocomposites with 
      percentages of 1.4, 2.8, and 4.3%, respectively. The DC electrical conductivity 
      of the nanocomposites was measured by a two-probe method in the temperature range 
      of 25-80  degrees C. It was found that the formation of an inorganic nanophase in the PVT 
      polymer as well as an increase in the average size of nanoparticles led to an 
      increase in the DC conductivity over the entire temperature range. The results 
      revealed that the DC electrical conductivity of nanocomposites with a Tellurium 
      content of 2.8, 4.3 wt% at 80  degrees C becomes higher than the conventional boundary of 
      10(-10) S/cm separating dielectrics and semiconductors.
FAU - Zhmurova, Anna V
AU  - Zhmurova AV
AD  - A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of Russian Academy 
      of Sciences, Favorsky 1, 664033 Irkutsk, Russia.
FAU - Prozorova, Galina F
AU  - Prozorova GF
AUID- ORCID: 0000-0003-3833-9002
AD  - A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of Russian Academy 
      of Sciences, Favorsky 1, 664033 Irkutsk, Russia.
FAU - Korzhova, Svetlana A
AU  - Korzhova SA
AD  - A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of Russian Academy 
      of Sciences, Favorsky 1, 664033 Irkutsk, Russia.
FAU - Pozdnyakov, Alexander S
AU  - Pozdnyakov AS
AUID- ORCID: 0000-0002-9365-3697
AD  - A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of Russian Academy 
      of Sciences, Favorsky 1, 664033 Irkutsk, Russia.
FAU - Zvereva, Marina V
AU  - Zvereva MV
AD  - A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of Russian Academy 
      of Sciences, Favorsky 1, 664033 Irkutsk, Russia.
LA  - eng
PT  - Journal Article
DEP - 20230628
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC10342494
OTO - NOTNLM
OT  - DC electrical conductivity
OT  - dielectric polymer
OT  - poly(1-vinyl-1,2,4-triazole)
OT  - polymer nanocomposite
OT  - thermoelectric tellurium nanoparticles
COIS- The authors declare no conflict of interest.
EDAT- 2023/07/14 13:06
MHDA- 2023/07/14 13:07
PMCR- 2023/06/28
CRDT- 2023/07/14 01:08
PHST- 2023/06/01 00:00 [received]
PHST- 2023/06/21 00:00 [revised]
PHST- 2023/06/23 00:00 [accepted]
PHST- 2023/07/14 13:07 [medline]
PHST- 2023/07/14 13:06 [pubmed]
PHST- 2023/07/14 01:08 [entrez]
PHST- 2023/06/28 00:00 [pmc-release]
AID - ma16134676 [pii]
AID - materials-16-04676 [pii]
AID - 10.3390/ma16134676 [doi]
PST - epublish
SO  - Materials (Basel). 2023 Jun 28;16(13):4676. doi: 10.3390/ma16134676.