Results 21 to 30 of about 9,084 (156)

Organic photovoltaics: a chemical approach [PDF]

Chemical Communications, 2010
The design of new organic functional molecules able to harvest sun light and efficiently undergo photon to current energy conversion processes is at the forefront of chemical challenges. In this review, the fundamental contribution of chemistry to the multidisciplinary field of organic photovoltaics is presented in a systematic way through the wide ...
Delgado, Juan Luis, Bouit, Pierre-Antoine, Filippone, Salvatore, Ángeles Herranz, Mª, Martín, Nazario   +4 more
openaire   +3 more sources

Light Harvesting for Organic Photovoltaics [PDF]

Chemical Reviews, 2016
The field of organic photovoltaics has developed rapidly over the last 2 decades, and small solar cells with power conversion efficiencies of 13% have been demonstrated. Light absorbed in the organic layers forms tightly bound excitons that are split into free electrons and holes using heterojunctions of electron donor and acceptor materials, which are
Hedley, Gordon J., Ruseckas, Arvydas, Samuel, Ifor D.W.   +2 more
openaire   +3 more sources

Organic photovoltaics: A journey through time, advancements, and future opportunities

Історія науки і техніки
This comprehensive study explores the realm of organic photovoltaics, a pivotal green energy technology, tracing its journey from early theoretical concepts to its current status as a promising avenue for sustainable energy production.
Gennadiy Bulavko
doaj   +1 more source

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

Gap variability upon packing in organic photovoltaics.

PLoS ONE, 2020
The variation of the HOMO-LUMO band gap is explored for varying packing arrangements of the 4mod BT-4TIC donor-acceptor molecule pair, by means of a high-throughput ab-initio random structure search of packing possibilities. 350 arrangements of the dimer
D López-Durán, Etienne Plésiat, Michal Krompiec, Emilio Artacho   +3 more
doaj   +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

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

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

Band Alignment in In‐Oxo Metal Porphyrin SURMOF Heterojunctions

Advanced Functional Materials, EarlyView.
Porphyrin core metalation in indium‑oxo SURMOFs enables systematic tuning of band edge positions without altering the crystal structure. First‑principles calculations reveal type‑I and type‑II heterostructures as well as multi‑junction energy cascades, establishing a modular strategy for exciton funneling and charge separation in optoelectronic ...
Puja Singhvi, Nina Vankova, Thomas Heine
wiley   +1 more source

Drawing organic photovoltaics using paint marker pens

AIP Advances, 2017
Active layers for organic photovoltaic devices (OPVs) were prepared by hand drawing with paint marker pens containing solutions of the materials. Although the pen-coated organic films were visually non-uniform with quite high surface roughness, OPV ...
Kaori Suzuki, Seiichiro Izawa, Yujiao Chen, Kyohei Nakano, Keisuke Tajima   +4 more
doaj   +1 more source