Results 81 to 90 of about 112,220 (315)

Interfacial engineering for high performance carbon-based perovskite solar cells

Frontiers in Energy Research
Perovskite solar cells fabricated with carbon-based counter electrodes demonstrate decreased cost, enhanced simplicity and speed of production, and increased stability compared to those produced with standard metallic electrodes.
Megan Brown, Dawen Li
doaj   +1 more source

Basic understanding of perovskite solar cells and passivation mechanism

AIP Advances, 2022
Although perovskite solar cells (PSCs) have made great achievements during the past few years, the efficiency of PSCs is only up to 25.5%, which is comparable to silicon-based solar cells.
Yixin Yu, Jingxuan Xia, Yiwen Liang
doaj   +1 more source

From Lead Halide Perovskites to Lead‐Free Metal Halide Perovskites and Perovskite Derivatives

Advanced Materials, 2019
AbstractDespite the exciting progress on power conversion efficiencies, the commercialization of the emerging lead (Pb) halide perovskite solar cell technology still faces significant challenges, one of which is the inclusion of toxic Pb. Searching for Pb‐free perovskite solar cell absorbers is currently an attractive research direction. The approaches
Zewen Xiao, Zhaoning Song, Yanfa Yan
openaire   +3 more sources

Efficient All-Perovskite White Light-Emitting Diodes Made of In Situ Grown Perovskite-Mesoporous Silica Nanocomposites

, 2023
Metal halide perovskite quantum dots (QDs) have emerged as potential materials for high brightness, wide color gamut, and cost-effective backlight emission due to their high photoluminescence quantum yields, narrow emission linewidths, and tunable ...
Bian, Zhenfeng, Xiaoyu Zhang, Meng Fan, Jinpeng Huang, Liu, Nan, Liancheng Wang, Turyanska, Lyudmila, Wang, Liancheng, Fan, Meng, Zhang, Xiaoyu, Chunyang Xu, Yang, Xuyong, Zhang, Chengxi, Xuyong Yang, Huang, Jinpeng, Chengxi Zhang, Lyudmila Turyanska, Zhenfeng Bian, Xu, Chunyang, Li, Hongbo, Nan Liu, Hongbo Li   +21 more
core   +1 more source

Exploring Pb‐Chelation Chemistry in the Crystallization Dynamics of Halide Perovskites

Advanced Functional Materials, EarlyView.
A mechanism of how Pb‐chelation chemistry governs coordination geometry and initial nucleation behavior at the precursor level of halide perovskite, by regulating the deprotonation state of a chelating additive, is elucidated. This allows for innovative reaction‐system design principles that promote coherent growth while suppressing defect formation in
Byeong Jun Kim, Inseo Cho, Jung Geon Son, Yifan Yu, Gunhee Kim, Eunseo Shin, Seyeon Eom, Minsub Um, Subeom Shin, Hyungju Ahn, Dong Suk Kim, Hochan Song, Hyosung Choi, Jonghee Yang   +13 more
wiley   +1 more source

Enhanced Performance of Perovskite Light-Emitting Devices With Improved Perovskite Crystallization

IEEE Photonics Journal, 2017
In this paper, we have demonstrated an efficient perovskite light-emitting device (PeLED) by improving perovskite crystallization. The improved perovskite crystallization has been achieved by pretreating the underneath poly (3, 4-ethylenedioxythiophene):
Yue-Feng Liu, Yi-Fan Zhang, Ming Xu, Zhen-Yu Zhang, Jifang Tao, Yuandong Gu, Jing Feng, Hong-Bo Sun   +7 more
doaj   +1 more source

Revealing the microstructure evolution of inorganic CsPbI2Br perovskite via synchrotron radiation grazing incidence X‐ray diffraction

Nano Select, 2021
Perovskite devices have been developed rapidly over the past decade and all‐inorganic perovskite devices have attracted wide interest due to their outstanding stability.
Yanan Dong, Keqing Huang, Jianhui Chang, Jian Zhang, Yingguo Yang, Junliang Yang   +5 more
doaj   +1 more source

High-Pressure, High-Temperature Studies of Phase Transitions in SrOsO₃Discovery of a Post-Perovskite

, 2022
Using a recently developed method for in situ high-pressure, laser heating experiments in diamond anvil cells, we obtained a novel post-perovskite phase of SrOsO3.
Martin Bremholm (1540225), Davide Ceresoli (1392322), Martin Ottesen (9518962), Francesca Menescardi (14130053), Emma Ehrenreich-Petersen (9518968), Camilla Hjort Kronbo (14130050)   +5 more
core   +1 more source

Dual‐Function Interface Engineering for δ‐Phase‐Free Crystallization Toward Efficient and Stable FAPbI3 Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
This work presents a dual‐function interface engineering strategy using PEACl to suppress the formation of the non‐perovskite δ‐FAPbI3 phase at the critical SnO2 buried interface. This approach enables the direct crystallization of the photoactive α‐phase, yielding highly efficient and stable rigid (25.6%) and flexible perovskite solar cells with ...
Xiao Wu, Shengyuan Wang, Pok Fung Chan, Zhenyi Ni, Hengkai Zhang, Chun‐Jen Su, Junyi Zhu, Xinhui Lu   +7 more
wiley   +1 more source

High temperature elastic anisotropy of the perovskite and post-perovskite polymorphs of Al2O3

, 2005
Finite temperature ab initio molecular dynamics calculations were performed to determine the high temperature elastic and seismic properties of the perovskite and post-perovskite phases of pure end-member Al2O3.
Price, GD, Brodholt, JP, Stackhouse, S
core