Results 61 to 70 of about 3,573 (286)

Chlorination‐Enabled Oxygen Control and Dual‐Sulfur Source Aided Trap Passivation to Unlock 8.24% Efficient Sb2S3 Photovoltaic Devices

Advanced Functional Materials, EarlyView.
This work demonstrates a scalable, low‐temperature synthesis strategy that combines a thioacetamide (TA)‐based dual sulfur source with CdS chlorination, enabling the formation of high‐quality Sb2S3 with a reduced open‐circuit voltage loss, resulting in improved device efficiency.
Vijay C. Karade, Namuna Adhikari, Samietha S. Kumar, Alisha Adhikari, Vamsi Borra, Prabodika N. Kaluarachchi, Tingting Zhu, Tyler Brau, Rohini Kanase, Ebin Bastola, Xavier Mathew, Abasi Abudulimu, Adam B. Phillips, Michael J. Heben, Zhaoning Song, Yanfa Yan, Randy J. Ellingson   +16 more
wiley   +1 more source

Surface photovoltage characterisation of metal halide perovskite on crystalline silicon using Kelvin probe force microscopy and metal-insulator-semiconductor configuration

EPJ Photovoltaics, 2022
In this study we analysed halide perovskite films deposited directly on crystalline silicon by means of two set-ups using different operating modes of the surface photovoltage (SPV) methods, i.e., the Kelvin probe force microscopy (KPFM) and the metal ...
Bojar Aleksandra, Regaldo Davide, Alvarez José, Alamarguy David, Donchev Vesselin, Georgiev Stefan, Schulz Philip, Kleider Jean-Paul   +7 more
doaj   +1 more source

Study of charge injection mechanisms in organic field effect transistors using Kelvin Probe Force Microscopy (KPFM)

, 2021
Cette thèse porte sur l’étude de transistors organiques en couches minces (OTFT) par la méthode de microscopie à sonde de Kelvin (KPFM), en particulier sur l’études des contacts, et sur le développement de la méthode KPFM.
Brouillard, Mélanie
core  

Polarity‐Reversible Photoresponse–Driven Autonomous Wavelength Discrimination in Quantum Dot–Tellurium Thin‐Film Photodetectors via Engineered Energy‐Band Alignment

Advanced Functional Materials, EarlyView.
A quantum dot–tellurium thin‐film photodetector autonomously discriminates visible and infrared wavelengths through polarity‐reversible photoresponses. Engineered carrier separation and gain modulation enable filter‐free multispectral sensing within a single‐device architecture.
Yong Min Lee, Jungho Kim, Hyung Jin Choi, Woosik Kim, Byung Ku Jung, Young Kyun Choi, Taesung Park, Soong Ju Oh   +7 more
wiley   +1 more source

Mechano-Triboelectric Analysis of Surface Charge Generation on Replica-Molded Elastomeric Nanodomes

Micromachines, 2021
Replica molding-based triboelectrification has emerged as a new and facile technique to generate nanopatterned tribocharge on elastomer surfaces. The “mechano-triboelectric charging model” has been developed to explain the mechanism of the charge ...
Myung Gi Ji, Mohammed Bazroun, In Ho Cho, W. Dennis Slafer, Rana Biswas, Jaeyoun Kim   +5 more
doaj   +1 more source

Long‐Range Coordination Environment Modulates Single‐Atom Local States and Systemic Impact on CO2 Photoconversion

Advanced Functional Materials, EarlyView.
Terminal groups on Cu porphyrins modulate the electronic states of single‐atom Cu centers through a long‐range electronic effect, without altering the Cu coordination geometry. Meanwhile, a multi‐descriptor framework is established that incorporates porphyrin regulation, hybrid catalyst properties, and CO2 photoreduction capabilities.
Yi Zhang, Jintao Dong, Xiahe Chen, Xiyang Wang, Tiange Wei, Yue Zhu, Tai‐Sing Wu, Yun‐Fang Yang, Shao‐Yuan Leu, Keke Wang, Yuanbin She, Huaming Li, Jiexiang Xia, Molly Meng‐Jung Li   +13 more
wiley   +1 more source

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source

Hybrid Solar Cell/Triboelectric Nanogenerator Based on Stable Two‐Dimensional Covalent Organic Frameworks

Advanced Functional Materials, EarlyView.
This study highlights the integration of stable two‐dimensional covalent organic framework (COF) films as photoactive layers in hybrid nanoenergy devices. The results demonstrate their capacity to generate electricity under both sunny and rainy conditions, showcasing versatility and resilience.
Joab D. Guerrero, Susana Ramos‐Terrón, Salvador R. G. Balestra, José M. Malagón, David Aparicio, Lucia Velasco, Asterios Charisiadis, Dooshaye Moonshiram, Margarita Darder, Pilar Aranda, Bernd Wicklein, Gustavo de Miguel, Javier Pérez‐Carvajal, Eva M. García‐Frutos   +13 more
wiley   +1 more source

KPFM surface potential images of the 10% Cu-doped ZnO film after (a) bias application (b) the first grounded tip scan (c) the second grounded tip scan (d) KPFM data acquired from (a)-(c) and after 20h.

, 2017
KPFM surface potential images of the 10% Cu-doped ZnO film after (a) bias application (b) the first grounded tip scan (c) the second grounded tip scan (d) KPFM data acquired from (a)-(c) and after 20h.
Haifeng Zhang (137541), Ting Su (640554)
core   +1 more source

Direct study of the electrical properties of PC12 cells and hippocampal neurons by EFM and KPFM

Nanoscale Advances, 2019
The study of capacitance gradient by EFM (upper) and contact potential difference by KPFM (lower) of cells in lift modes.
Weidong Zhao, Wei Cui, Shujun Xu, Ling-Zhi Cheong, Deyu Wang, Cai Shen   +5 more
openaire   +3 more sources