% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Hu:878255,
author = {Hu, Tian-Yi and Ma, Chunrui and Dai, Yanzhu and Fan,
Qiaolan and Liu, Ming and Jia, Chun-Lin},
title = {{E}nhanced {E}nergy {S}torage {P}erformance of
{L}ead-{F}ree {C}apacitors in an {U}ltrawide {T}emperature
{R}ange via {E}ngineering {P}araferroelectric and {R}elaxor
{F}erroelectric {M}ultilayer {F}ilms},
journal = {ACS applied materials $\&$ interfaces},
volume = {12},
number = {23},
issn = {1944-8252},
address = {Washington, DC},
publisher = {Soc.},
reportid = {FZJ-2020-02724},
pages = {25930 - 25937},
year = {2020},
abstract = {Industry has been seeking a thin-film capacitor that can
work at high temperature in a harsh environment, where
cooling systems are not desired. Up to now, the working
temperature of the thin-film capacitor is still limited up
to 200 °C. Herein, we design a multilayer structure with
layers of paraferroelectric (Ba0.3Sr0.7TiO3, BST) and
relaxor ferroelectric (0.85BaTiO3–0.15Bi(Mg0.5Zr0.5)O3,
BT–BMZ) to realize optimum properties with a flat platform
of dielectric constant and high breakdown strength for
excellent energy storage performance at high temperature.
Through optimizing the multilayer structure, a highly stable
relaxor ferroelectric state is obtained for the BST/BT–BMZ
multilayer thin-film capacitor with a total thickness of 230
nm, a period number N = 8, and a layer thickness ratio of
BST/BT–BMZ = 3/7. The optimized multilayer film shows
significantly improved energy storage density (up to 30.64
J/cm3) and energy storage efficiency (over $70.93\%)$ in an
ultrawide temperature range from room temperature to 250
°C. Moreover, the multilayer system also exhibits excellent
thermal stability in such an ultrawide temperature range
with a change of 5.15 and $12.75\%$ for the recoverable
energy density and energy storage efficiency, respectively.
Our results demonstrate that the designed thin-film
capacitor is promising for the application in a harsh
environment and open a way to tailor a thin-film capacitor
toward higher working temperature with enhanced energy
storage performance.},
cin = {ER-C-1},
ddc = {600},
cid = {I:(DE-Juel1)ER-C-1-20170209},
pnm = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
pid = {G:(DE-HGF)POF3-143},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:32412230},
UT = {WOS:000541679900042},
doi = {10.1021/acsami.0c05560},
url = {https://juser.fz-juelich.de/record/878255},
}