With an indenoindene core, a new thieno[3,4-b]thiophene-based small-molecule electron acceptor, 2,2'-((2Z,2'Z)-((6,6'-(5,5,10,10-tetrakis(2-ethylhexyl)-5,10-dihydroindeno[2,1-a]indene-2,7-diyl)bis(2-octylthieno[3,4-b]thiophene-6,4-diyl))bis(methanylylidene))bis(5,6-difluoro-3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile (NITI), is successfully designed and synthesized. Compared with 12-π-electron fluorene, carbon-bridged biphenylene axial symmetry, indenoindene, E-stilbene...

X-ray scintillators have gained significant attention in medical diagnostics and industrial applications. Despite their widespread utility, scintillator development faces a hurdle when exposed to elevated temperatures, as it usually results reduced scintillation efficiency diminished luminescence output. Here we report molecular design strategy based on hybrid perovskite (TpyBiCl

In this review, we will focus on the recent progress in synthetic strategies, photo-electronic properties, molecular packing modes and applications of azaacenes (<italic>n</italic>≥ 6) with single-crystal structures.

While the synthesis of nanographenes has advanced greatly in past few years, development their atomically precise functionalization strategies remains rare. The ability to modify carbon scaffold translates controlling, adjusting, and adapting molecular properties. Towards this end, here, we show that mechanochemistry is capable transforming graphitization precursors directly into chlorinated curved through a Scholl reaction. halogenation occurs regioselective, high-yielding, general manner....

Abstract Most studies on the acceleration process of electric vehicle focus reducing energy consumption, but do not consider impact power battery discharge current and its change rate life. Therefore, this paper studied interaction between consumption capacity attenuation during acceleration. First, a life model for under driving conditions is established, percentage loss per kilometer used to measure different conditions. Then, relationship velocity explored, mechanism processes analyzed....

A heterogeneous catalytic system, Pd(OAc)2/n-Bu4NOAc, for the efficient synthesis of diaceno[a,e]pentalenes via a tandem Pd cycle is reported. The partner n-Bu4NOAc played indispensable and versatile roles, acting as both media recovering active Pd(0) species their stabilizer. series new were obtained in moderate to high yields, among which octacyclic dianthracenopentalene was found be highly emissive.

The obtained PCE of 9.60% is so far the best performance reported for OPV devices utilizing dithienosilole-based organic photovoltaic materials.

ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTBis-Silicon-Bridged Stilbene: A Core for Small-Molecule Electron Acceptor High-Performance Organic Solar CellsZhongbo Zhang†‡ and Xiaozhang Zhu*†‡View Author Information† Beijing National Laboratory Molecular Sciences, CAS Key of Solids, Institute Chemistry, Chinese Academy 100190, People's Republic China‡ School Chemistry Chemical Engineering, University 100049, China*X. Zhu. E-mail: [email protected]Cite this: Chem. Mater. 2018, 30, 3,...

Open AccessCCS ChemistryCOMMUNICATION7 Nov 2022Seeing Is Believing: A Wavy N-Heteroarene with 20 Six-Membered Rings Linearly Annulated in a Row Zhongbo Zhang, Zilong Wang, Naoki Aratani, Xiaozhang Zhu and Qichun Zhang School of Materials Science Engineering, Nanyang Technological University, Singapore 639798 , Wang Aratani *Corresponding authors: E-mail Address: [email protected] Division Science, Nara Institute Technology, Ikoma, 630-0192 Beijing National Laboratory for Molecular Sciences,...

<sec> <title>BACKGROUND</title> The growing global cancer burden impacts young individuals as early-onset rates rise. Advances in treatment improve survival but often harm reproductive function. Fertility preservation (FP) techniques are crucial, yet research mainly emphasizes patients’ views. </sec> <title>OBJECTIVE</title> This study explores the roles of healthcare professionals (HCPs), barriers, and facilitators FP decision-making. <title>METHODS</title> PubMed, Cochrane, Embase, APA...

Across the globe, flood control standards for reservoir engineering appear different due to various deciding factors such as features, society, economy, culture, morality, politics, and technology resources, etc. This study introduces an in-depth comparison of countries. After analysis, it is concluded that determination related grade, dam type, height, hazard downstream after dam-breaking, Each country should adopt practical according characteristics local engineering. The constitutive...

A small molecule TBTT-1 with 5-(2-ethylhexyl)-1,3-bis(2-(2-ethylhexyl)thieno[3,4-b]thiophen-6-yl)-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione (TBTT) as the central moiety was designed and synthesized for solution-processed bulk-heterojunction solar cells. exhibits a broad absorption low optical band gap of approximately 1.53 eV in thin film. An optimized power conversion efficiency (PCE) 7.47% high short-circuit current 14.95 mA cm-2 achieved diphenyl ether (DPE) additive, which is highest PCE...

Singlet fission (SF), a process that involves the conversion of one singlet exciton (S1) into pair triplet excitons (T1), holds great technological promise for photovoltaics. Typical SF materials necessitate energy (ES1) be at least twice (ET1) or that, equivalently, ES1 less than singlet–triplet splitting (ΔES1–T1). Based on these design principles, we have developed series linearly arranged pyrene-fused azaacenes with varying conjugation lengths, featuring four, five, and six aromatic...

A new method based on a palladium-catalyzed tandem reaction for the fast construction of dianthraceno[<italic>a</italic>,<italic>e</italic>]pentalene (DAP) framework is developed, which gave series dianthraceno[<italic>a</italic>,<italic>e</italic>]pentalenes with good functional group tolerance, and it should be highlighted that five C–C bonds were formed in one reaction.

Lightweight and adaptive adjustment are key research directions for deep neural networks (DNNs). In coal industry mining, frequent changes in raw sources production batches can cause uneven distribution of appearance features, leading to concept drift problems. The network architecture parameters should be adjusted frequently avoid a decline model accuracy. This poses significant challenge those without specialist expertise. Although the Neural Architecture Search (NAS) has strong ability...

Design solution space (DSS) exploration is a pivotal process for comprehending design challenges and identifying diverse alternatives based on varying requirements. Computer-aided (CAD) approaches, such as parametric design, knowledge-based generative have proven successful in DSS exploration. However, comparative study evaluating their performance lacking the technical literature. This paper addresses this gap by conducting analysis of these approaches regarding exploring DSS. The research...

The working temperature is one of the key factors affecting efficiency and safety performance automotive power batteries. Current battery pack design primarily focuses on single layout configurations, overlooking potential impact mixed arrangements thermal management performance. This study presents a module-based optimization methodology for comprehensive concept Lithium-ion (Li-ion) pack. Firstly, arrangement modules optimized performed using particle swarm algorithms considering various...

Recursive way is usually applied to Tree-building process for common ray tracing (RT) algorithm based on virtual source tree. Owing limiting the maximum number of layer, this paper presents a new method build tree layer by in cyclic way. Meanwhile, it analogous limit diffraction times increase efficiency. Compared with recursive way, whole tree-building has clearly ideas and efficient A comparison between calculated measured results presented, which shows high predicting accuracy. The...