Results 31 to 40 of about 18,293 (265)

The stability of perovskite solar cells [PDF]

Chinese Science Bulletin, 2017
Solar energy as a widespread clean energy is considered to be the key to solving future energy problems, solar cell technology is also evolving, of which perovskite solar cells because of its rapid growth efficiency gains wide attention. The great breakthroughs have been observed in organic-inorganic halide perovskite solar cells.
FeiHong HUANG, JinKui SONG, PeiZhe LIAO, MingKui WANG   +3 more
openaire   +1 more source

Influence of Radiation on the Properties and the Stability of Hybrid Perovskites

Advanced Materials, 2017
AbstractOrganic–inorganic perovskites are well suited for optoelectronic applications. In particular, perovskite single and perovskite tandem solar cells with silicon are close to their market entry. Despite their swift rise in efficiency to more than 21%, solar cell lifetimes are way below the needed 25 years.
Lang, Felix, Shargaieva, Oleksandra, Brus, Viktor V., Neitzert, Heinz C., Rappich, Jörg, Nickel, Norbert H.   +5 more
openaire   +4 more sources

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Shallow-level defect passivation by 6H perovskite polytype for highly efficient and stable perovskite solar cells

Nature Communications
The power conversion efficiency of perovskite solar cells continues to increase. However, defects in perovskite materials are detrimental to their carrier dynamics and structural stability, ultimately limiting the photovoltaic characteristics and ...
Hobeom Kim, So-Min Yoo, Bin Ding, Hiroyuki Kanda, Naoyuki Shibayama, Maria A. Syzgantseva, Farzaneh Fadaei Tirani, Pascal Schouwink, Hyung Joong Yun, Byoungchul Son, Yong Ding, Beom-Soo Kim, Young Yun Kim, Junmo Park, Olga A. Syzgantseva, Nam Joong Jeon, Paul J. Dyson, Mohammad K. Nazeeruddin   +17 more
doaj   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source

Thermal Stability of Chalcogenide Perovskites

Inorganic Chemistry
Chalcogenide perovskites (CPs) have recently attracted interest as a class of materials with practical potential in optoelectronics and have been suggested as a more thermally stable alternative to intensely studied halide perovskites (HPs). Here we report a comparative study of the thermal stability of representative HPs, MAPbI3 (MA = CH3NH3 ...
Bystrický, Roman, Tiwari, Sameer Kumar, Hutár, Peter, Sykora, Milan   +3 more
openaire   +2 more sources

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

Advanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa, Lin‐Ding Yuan, Stephen D. Wilson, James M. Rondinelli   +3 more
wiley   +1 more source

Synergetic surface charge transfer doping and passivation toward high efficient and stable perovskite solar cells

iScience, 2021
Summary: Organic-inorganic lead halide perovskite solar cells (PSCs) have received much attention in the last few years due to the high power conversion efficiency (PCE).
Xing Guo, Jie Su, Zhenhua Lin, Xinhao Wang, Qingrui Wang, Zebing Zeng, Jingjing Chang, Yue Hao   +7 more
doaj   +1 more source

Stability of Tetravalent Actinides in Perovskites [PDF]

, 1984
This paper reports the first determination of the enthalpy of formation of a complex actinide(IV) oxide: ..delta..H/sub f//sup 0/ (BaUO/sub 3/,s, 298 K) = -1690 +/- 10 kJ mol /sup -1/. The preparation and properties of this and other actinide(IV) complex oxides are described and are compared with other perovskites BaMO/sub 3/.
Williams, C. W., Morss, L. R., Choi, I. K.   +2 more
openaire   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source