Results 51 to 60 of about 3,551 (254)

Neuromorphic Near‐Sensor and In‐Sensor Computing Enabled by Next‐Generation Material‐Based Sensors

Advanced Science, EarlyView.
This Review presents a structural framework that classifies neuromorphic sensing into near‐sensor and in‐sensor architectures, clarifying physical coupling between sensing and computation. The framework connects neural and synaptic device functions with recent advances in optical, mechanical, and chemical sensing, compares energy consumption and ...
Su Yeon Jung, Gwang Ya Kim, Sejin Kim, Hyunjong Seo, Se Gi Lee, Sang Min Won, Dongjoon Rhee, Joohoon Kang   +7 more
wiley   +1 more source

Scalable MoS2/Si Photodiode Arrays From Roll‐to‐Roll Mechanical Exfoliation

Advanced Science, EarlyView.
A dry roll‐to‐roll route transforms mechanically exfoliated MoS2 flake networks into silicon‐integrated photodiode arrays. The MoS2/Si junctions generate photovoltaic output without applied bias, allowing illuminated pixels to locate light spots and reconstruct simple images.
Yigit Sozen, Thomas Pucher, Andres Castellanos‐Gomez   +2 more
wiley   +1 more source

Anchor Engineering of Hole‐Selective Enamine‐Based Self‐Assembling Monolayers for Perovskite Solar Cells

Advanced Science, EarlyView.
This work presents novel enamine‐based self‐assembling monolayers with engineered anchoring groups as hole‐selective contacts for inverted perovskite solar cells. The conjugated molecular design suppresses interfacial defects, optimizes charge extraction, and prevents aggregation.
Deimante Krisiune, Yuxuan Yang, Yongde Xu, Hao Tian, Chuanxiao Xiao, Jianxing Xia, Mahan Saberi Zafarghandi, Ali Keshavarz Mohammadian, Negar Ashari Astani, Kasparas Rakstys, Yi Zhang, Vytautas Getautis   +11 more
wiley   +1 more source

Impact of Mg content on native point defects in MgxZn1−xO (0 ≤ x ≤ 0.56)

APL Materials, 2015
We used depth-resolved cathodoluminescence spectroscopy and surface photovoltage spectroscopy to measure the densities, energy levels, and spatial distributions of zinc/magnesium cation and oxygen vacancies in isostructural, single-phase, non-polar ...
J. Perkins, G. M. Foster, M. Myer, S. Mehra, J. M. Chauveau, A. Hierro, A. Redondo-Cubero, W. Windl, L. J. Brillson   +8 more
doaj   +1 more source

Graphene‐Engineered Rear Interfaces Enable Efficient Flexible CZTSSe Solar Cells on Metal Foils

Advanced Science, EarlyView.
An atomically thin graphene interlayer stabilizes the rear interface of flexible CZTSSe solar cells by regulating interfacial stress, suppressing detrimental interfacial reactions, and reducing the back‐contact barrier. This strategy simultaneously improves photovoltaic performance and mechanical durability.
Yixiong Ji, Wentong Yang, Di Yan, Wei Luo, Jialu Li, Shi Tang, Jintao Fu, James Bullock, Mei Gao, Xin Li, Zhancheng Li, Jun Yang, Zhenghong Xiong, Yang Peng, Pengjun Zhao, Xingzhan Wei, Haofei Shi, Paul Mulvaney, Fangyang Liu   +18 more
wiley   +1 more source

Gas sensing mechanism of ZnO: Na nanocrystals at room temperature using surface photovoltage spectroscopy

Cailiao gongcheng
ZnO nanocrystals with different Na doping concentrations were prepared on PET flexible substrates sputtered with Au/Ti interdigital electrodes by a simple sol gel method.
LONG Xiaoqin, HAVAN Aren, WANG Zhan, LIANG Yuqing, PINGTE Wusha, WANG Ziqiang, SUN Yifei, YU Fei, YUAN Huan   +8 more
doaj   +1 more source

Advances in Se Wide‐Bandgap Photovoltaics and TexSe1‐x SWIR Photodiodes

Advanced Science, EarlyView.
In this review, fundamental properties and current challenges in Se photovoltaics (PVs) for tandem and indoor PVs and TexSe1‐x alloys for short wave infrared photodiodes are discussed. A case is made for the practicality of elemental chalcogenide optoelectronics, and a pathway toward resolving the key challenges in these respective technologies is ...
Adam D. Alfieri, Deep Jariwala
wiley   +1 more source

Deconvolution of the Mg-Related blue band in GaN via selective chemical treatments

Scientific Reports
The deep electronic states associated with the Mg-related blue band in GaN are traditionally attributed to bulk defects. Using surface photovoltage spectroscopy to monitor selective wet etching ( $$HCl$$ , $$HF$$ , $${H}_{3}P{O}_{4}$$ ), complemented by ...
Or Haim Chaulker, Yury Turkulets, Yoram Shapira, R. S. Goldman, Ilan Shalish   +4 more
doaj   +1 more source

A photovoltage-gated membrane microreactor for electron-directed nitrate reduction

Applied Surface Science Advances
Photocatalytic nitrate reduction is limited not simply by photon absorption, but by whether the reaction interface can store electrons, polarize nitrate, and sustain proton-coupled N-O bond cleavage against competing oxygen reduction.
Atheer Sadoon Abdalali, Mahmoud Roushani, Somayeh Mirsadeghi   +2 more
doaj   +1 more source

From Sensing Mechanisms to System Co‐Design: Graphene‐Based Sensors and Readout Circuits

Advanced Science, EarlyView.
This review establishes a unified PS–EQ–RF framework linking graphene sensing mechanisms, native electrical outputs, and output‐specific readout circuits. Voltage‐, current‐, resistance‐, and capacitance‐type sensing systems are systematically classified to guide architecture selection, low‐noise design, system co‐design, and practical integration ...
Jinduo Zhang, Meng Chen, Guanchen Li, Ruifeng Liu, Yingxin Wang, Ziran Zhao   +5 more
wiley   +1 more source