Results 51 to 60 of about 5,125 (250)

Raising Dielectric Permittivity Mitigates Dopant‐Induced Disorder in Conjugated Polymers

Advanced Science, 2021
Conjugated polymers need to be doped to increase charge carrier density and reach the electrical conductivity necessary for electronic and energy applications.
Meenakshi Upadhyaya, Michael Lu‐Díaz, Subhayan Samanta, Muhammad Abdullah, Keith Dusoe, Kevin R. Kittilstved, Dhandapani Venkataraman, Zlatan Akšamija   +7 more
doaj   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Automatic device for measuring of principal thermoelectric parameters of lead chalcogenides

Известия высших учебных заведений: Проблемы энергетики, 2018
The device intended for measuring of principal thermoelectric parameters of the narrow-gap lead chalcogenide semiconductors (the Seebeck coefficient, electrical conductivity and thermal conductivity) have been created.
A. M. Sinicin, V. A. Ulanov
doaj   +1 more source

Roll‐to‐Roll Manufacturing of Flexible Thermoelectric Semiconductors Using Low‐Level Direct‐Current Sputtering

Advanced Materials Technologies, EarlyView.
Roll‐to‐roll direct‐current sputtering enables room‐temperature manufacture of flexible bismuth telluride thermoelectric films. By identifying a low‐power deposition window that suppresses charge‐induced arcing, this work links sputtering conditions to film structure, charge transport, and thermoelectric performance, achieving a room‐temperature figure
Xudong Tao, John O'Sullivan, Kening Wan, Emiliano Bilotti, Ruy Sebastian Bonilla, Hazel E. Assender   +5 more
wiley   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Chemically Doped Conductive Polymers for Wearable Health Monitoring

Advanced Materials Technologies, EarlyView.
Among conductive polymers, poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), polyaniline (PANI), and polypyrrole (PPy) are the most studied and applied. Chemical doping significantly boosts intrinsic conductivity and mechanical robustness.
Mengdi Zuo, Jian Song, Hong Hu, Le Zheng, Lei Zhang, Charles H. Lawrie   +5 more
wiley   +1 more source

Smart Closed‐Loop Systems in Personalized Healthcare: Advances and Outlook

Advanced Materials Technologies, EarlyView.
A smart closed‐loop e‐textile integrates multimodal sensing, onboard processing, wireless communication, and wearable power to enable real‐time physiological/biochemical monitoring and feedback‐controlled therapy. ABSTRACT Smart textiles represent a revolutionary frontier in healthcare, seamlessly blending fabric and advanced technologies to create ...
Safoora Khosravi, Sang Won Lee, Mohammad Abrar Uddin, Sina Hassanpoor, Neha Suvindran, Katherine Le, Harun Arkaz, Harishkumar Narayana, Saeid Soltanian, Danial Khorsandi, Negar Hosseinzadeh Kouchehbaghi, Taeil Kim, Yangzhi Zhu   +12 more
wiley   +1 more source

Seebeck coefficient in silicon nanowire arrays [PDF]

Applied Physics Letters, 2013
We measure the Seebeck coefficient S in large arrays of lightly doped n-Si nanowires (SiNWs). Our samples consist of ∼107 NWs in parallel, forming a “bulk” nano-structured material. We find that the phonon drag component of S, a manifestation of electron-phonon scattering in the sample, is heavily suppressed due to surface scattering, and that there is
Krali, E, Durrani, ZAK
openaire   +3 more sources

Printed Organic Thermoelectric Generators: Progress and Challenges Towards Efficient Energy Harvesting

Advanced Materials Technologies, EarlyView.
Printed organic thermoelectric generators (OTEGs) enable flexible and sustainable energy harvesting from low‐grade heat. This Perspective critically assesses recent advances in printable thermoelectric materials, 2D and 3D device architectures, and current performance limits of printed OTEGs.
Vijitha Ignatious, Pietro Rossi, Matteo Massetti, Cecilia Mattevi, Francisco Molina‐Lopez, Mario Caironi   +5 more
wiley   +1 more source

Thermovoltages under a non‐linear Seebeck coefficient

physica status solidi (a), 2016
The thermovoltages in the case of a nonlinear absolute Seebeck‐coefficient S(T) of a material A are discussed up to the quadratic term in the expansion of S(T) for inhomogeneous (AB) as well as for homogeneous (AA) material rings. The quadratic term results in additional thermovoltages and in particular in a Benedicks effect, ΔuAA ∼ (ΔT)3, but only if ...
Bärner, K., Morsakov, W., Irrgang, K.
openaire   +2 more sources