Results 51 to 60 of about 2,330,323 (369)

Slow thermal equilibration in methylammonium lead iodide revealed by transient mid-infrared spectroscopy

Nature Communications, 2018
Hybrid organic-inorganic perovskites are emerging materials for efficient photovoltaics; however understanding how charge/heat dissipates inside the material remains a challenge.
Peijun Guo, Jue Gong, Sridhar Sadasivam, Yi Xia, Tze-Bin Song, Benjamin T. Diroll, Constantinos C. Stoumpos, John B. Ketterson, Mercouri G. Kanatzidis, Maria K. Y. Chan, Pierre Darancet, Tao Xu, Richard D. Schaller   +12 more
doaj   +1 more source

A fast and robust numerical scheme for solving models of charge carrier transport and ion vacancy motion in perovskite solar cells [PDF]

, 2018
Drift-diffusion models that account for the motion of both electronic and ionic charges are important tools for explaining the hysteretic behaviour and guiding the development of metal halide perovskite solar cells. Furnishing numerical solutions to such
Courtier, N. E., Foster, J. M., Richardson, G.   +2 more
core   +2 more sources

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

Advanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer, Mareen Stahlberger, Xiaojing Liu, Yi Luo, Niklas E. Häußermann, Puja Singhvi, Yidong Liu, Olaf Fuhr, Martin Nieger, Lars Heinke, Thomas Heine, Christof Wöll, Stefan Bräse   +12 more
wiley   +1 more source

High-efficiency and air-stable P3HT-based polymer solar cells with a new non-fullerene acceptor

Nature Communications, 2016
In organic photovoltaics, the best performing devices usually involve low-bandgap polymers whose limited solubility and stability constrain the scalability of organic solar cells. Here, Holliday et al.
Sarah Holliday, Raja Shahid Ashraf, Andrew Wadsworth, Derya Baran, Syeda Amber Yousaf, Christian B. Nielsen, Ching-Hong Tan, Stoichko D. Dimitrov, Zhengrong Shang, Nicola Gasparini, Maha Alamoudi, Frédéric Laquai, Christoph J. Brabec, Alberto Salleo, James R. Durrant, Iain McCulloch   +15 more
doaj   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Hybrid TiO2 Solar Cells Produced from Aerosolized Nanoparticles of Water-Soluble Polythiophene Electron Donor Layer [PDF]

, 2014
Hybrid solar cells (HSCs) with water soluble polythiophene sodium poly[2-(3-thienyl)-ethyloxy-4-butylsulfonate] (PTEBS) thin films produced using electrospray deposition (ESD) were fabricated, tested, and modeled and compared to devices produced using ...
Clarke, Joshua G., McLeskey, James T., Jr., Pestov, Dmitry, Sweet, Marshall L, Tepper, Gary C.   +4 more
core   +3 more sources

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

A Hybrid Density Functional Study of Oligothiophene/ZnO Interface for Photovoltaics

, 2011
Organic/inorganic donor-acceptor interfaces are gaining growing attention in organic photovoltaic applications as each component of the interface offers unique attributes.
Chelikowsky, James R., Leung, Kevin, Sai, Na   +2 more
core   +1 more source

Single-layered organic photovoltaics with double cascading charge transport pathways: 18% efficiencies

Nature Communications, 2020
The chemical structure of donors and acceptors limit the power conversion efficiencies achievable with active layers of binary donor-acceptor mixtures. Here, using quaternary blends, double cascading energy level alignment in bulk heterojunction organic ...
M. Zhang, Lei Zhu, Guanqing Zhou, Tianyu Hao, Chaoqun Qiu, Zhe Zhao, Qin Hu, Bryon W. Larson, Haiming Zhu, Zaifei Ma, Zheng Tang, W. Feng, Yongming Zhang, T. Russell, Feng Liu   +14 more
semanticscholar   +1 more source

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

Advanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu, Christof Wöll, Stefan Bräse   +2 more
wiley   +1 more source