Results 51 to 60 of about 85,160 (331)

Zwitterionic Self‐Assembled Monolayer for Simultaneous Noise Suppression and Hole Extraction in High‐Performance Near‐Infrared Organic Photodetectors

Advanced Functional Materials, EarlyView.
This study presents a new hole transporting material (HTM) mechanism for self‐assembled monolayers in near‐infrared organic photodetectors. The formation of zwitterions induces a strong electric field that significantly increases the work function of HTM‐coated indium tin oxide substrates. The devices exhibit low dark current and noise, along with high
Jiyoung Shin, Gyeong Min Lee, Juyeon Shin, Jaewoong Kim, Tae Hyuk Kim, Do Yeon Kim, Myeong In Kim, Kyeounghak Kim, Jae Won Shim, In Hwan Jung   +9 more
wiley   +1 more source

Decay and fusion as two different mechanisms of stability loss for the (C_20)_2 cluster dimer

, 2006
The thermal stability of the (C_20)_2 cluster dimer consisting of two C_20 fullerenes is examined using a tight-binding approach. Molecular dynamics simulations of the (C_20)_2 dimer at temperatures T = 2000 - 3500 K show that the finite lifetime \tau of
A. I. Podlivaev, A. I. Podlivaev, A. V. Eletskii, C. E. Klots, C. H. Choi, C. H. Xu, D. Tománek, H. Prinzbach, H. W. Kroto, I. Spagnolatti, I. V. Davydov, J. V. Andersen, L. A. Openov, L. A. Openov, L. A. Openov, N. N. Degtyarenko, R. Ehlich, R. O. Jones, V. F. Elesin, V. F. Elesin   +19 more
core   +1 more source

Layer-by-layer polypyrrole coated graphite oxide and graphene nanosheets as catalyst support materials for fuel cells [PDF]

, 2011
For the production of advanced type of catalyst support materials, the distinguished properties of graphene nanosheets were combined with the structural properties of conducting polypyrrole by the incorporation of graphene nanosheets into a polymer ...
Alkan Gursel, Selmiye, Alkan Gürsel, Selmiye, Saner Okan, Burcu, Yurum, Yuda, Yürüm, Yuda   +4 more
core   +2 more sources

Trifluoromethoxylated Electron Acceptor Enabling Ternary Organic Solar Cells with over 20% Power Conversion Efficiency

Advanced Functional Materials, EarlyView.
ABSTRACT In this work, we introduce a trifluoromethoxy (OCF3) group as a pseudo‐halogen terminal group design for non‐fullerene acceptors, which combines strong inductive electron‐withdrawing ability with moderate resonance donation. The as‐synthesized BTP‐OCF3, when benchmarked against its methoxy analogue BTP‐OCH3, demonstrates narrowed bandgap ...
Chunliang Li, Anhai Liang, Shuwei Qiu, Gavin Ho Ming Ng, Aleksandr Sergeev, Joshua Yuk Lin Lai, Bosen Zou, Xianghao Zeng, Jicheng Yi, Hongxiang Li, Junpo Guo, Wei Liu, Jia Yao, Kam Sing Wong, Zhipeng Kan, Sai Ho Pun, He Yan   +16 more
wiley   +1 more source

Fullerenes with distant pentagons [PDF]

, 2015
For each $d>0$, we find all the smallest fullerenes for which the least distance between two pentagons is $d$. We also show that for each $d$ there is an $h_d$ such that fullerenes with pentagons at least distance $d$ apart and any number of hexagons ...
Goedgebeur, Jan, McKay, Brendan D.
core  

Formation of fullerenes in H-containing Planetary Nebulae

, 2010
Hydrogen depleted environments are considered an essential requirement for the formation of fullerenes. The recent detection of C60 and C70 fullerenes in what was interpreted as the hydrogen-poor inner region of a post-final helium shell flash Planetary ...
Cherchneff, Cherchneff, Duley, Duley, García-Hernández, García-Lario, Goeres, Grishko, Hrivnak, Jäger, Kwok, Kwok, Köppen, Maciel, Mendez, Perinotto, Scott, Scott, Scott, Shaw, Shaw, Speck, Stanghellini, Stanghellini, Williams   +24 more
core   +1 more source

In‐Situ Solution Complexation for n‐Type Surface‐Energetics Reconstruction in 2.0 eV Ultra‐Wide‐Bandgap Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
A reactive in situ solution complexation strategy reconstructs the surface of 2.0 eV ultra‐wide‐bandgap perovskites via proton transfer. This chemical modulation eliminates metallic defects and induces a degenerate‐like n‐type surface, establishing an Ohmic tunneling contact.
Saemon Yoon, Han‐Gyun Lim, Jinyoung Kim, Gyu Min Kim, Seojun Lee, Jun Ryu, SungWon Cho, Jincheol Kim, Hyosung Choi, Jung Sang Cho, Jongsung Park, Dong‐Won Kang   +11 more
wiley   +1 more source

ON THE PERFORMANCES IN THE EXPLAINING OF CHEMICAL REACTIVITY OF FULLERENES OF ELECTRONIC STRUCTURE RULES

Journal of Applied Surfaces and Interfaces, 2021
Important electronic structure rules like Maximum Hardness Principle, Minimum Polarizability Principle, Minimum Electrophilicity Principle and Minimum Magnetizability Principle found many fields of the chemistry.
Savaş Kaya, Emre Biçer, Konstantin P. Katin, Ahmet Turan Acıdereli   +3 more
doaj   +1 more source

Fullerenes and proto-fullerenes in interstellar carbon dust

, 2011
Laboratory spectra of hydrogenated amorphous carbon (HAC) particles prepared under a variety of conditions show spectral features at 7.05, 8.5, 17.4 and 18.9 {\mu}m (1418, 1176, 575 & 529 cm-1) that have been associated with emission from C60 molecules ...
Cataldo, Duley, García-Hernández, García-Hernández, García-Hernández, Hu, Hu, Jäger, Menendez, Moutou, Scott, Sellgren, Sellgren, Smith, Zhang   +14 more
core   +1 more source

Furan‐Substituted Phosphine‐Oxide as an Efficient Interfacial Modifier for Wide‐Bandgap Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
We report phosphine‐oxide interlayers for wide‐bandgap perovskite solar cells, in which tuned P = O Lewis basicity enables selective passivation of buried NiOx/perovskite interfaces and introduces interfacial dipoles that strengthen the built‐in field.
JeeHee Hong, Juan Anthony Prayogo, Soobin Heo, Jae Sung Yun, Dong Ryeol Whang, Dong Wook Chang, Hui Joon Park   +6 more
wiley   +1 more source