Results 1 to 10 of about 797 (130)

Silicon anisotropic etching in KOH and TMAH with modified surface tension

Procedia Chemistry, 2009
AbstractEtching rates and morphologies of Si wafers with different crystallographic orientations etched in pure TMAH and TMAH with isopropyl alcohol have been analysed. IPA addition caused significant improvement in the morphology of some etched surfaces. Similar effects had been already observed in KOH+IPA solutions.
Irena Zubel
exaly   +2 more sources

Fabrication of Submicron Beams with Galvanic Etch Stop for Si in TMAH [PDF]

Sensors, 2009
A novel method has been developed to fabricate submicron beams with galvanic etch stop for Si in TMAH. The different Au:Si area ratios before and after the release of the beams are used to trigger the galvanic etch stop to fabricate submicron single crystal Si beams in standard Si wafers.
Rong Lu, Yanhong Wu, Haitao Cheng, Heng Yang, Xinxin Li, Yuelin Wang   +5 more
openaire   +4 more sources

Systematic study of the etching characteristics of Si{111} in modified TMAH [PDF]

Micro & Nano Letters, 2020
Wet bulk micromachining on Si{111} is done to fabricate simple to complex microstructures for applications in sensors and actuators. In this work, it has been performed a systematic study of Si{111} in modified 5 wt% tetramethyl‐ammonium hydroxide (TMAH) with varying concentration of NH 2 OH ...
Veerla Swarnalatha, Prem Pal, Ashok Kumar Pandey, Avvaru Venkata Narasimha Rao, Yan Xing, Hiroshi Tanaka, Kazuo Sato   +6 more
openaire   +2 more sources

Friction-induced selective etching on silicon by TMAH solution

RSC Advances, 2018
Friction-induced selective etching by TMAH solution was proposed for patterning a silicon surface with site control, high flexibility and low cost.
Chao Zhou, Jiaming Li, Lei Wu, Guangran Guo, Hongbo Wang, Peng Chen, Bingjun Yu, Linmao Qian   +7 more
openaire   +3 more sources

Controlling Polystyrene Particle Distribution in Colloidal Lithography For Correlated‐Disorder Structures

Advanced Optical Materials, EarlyView.
Colloidal lithography is a low‐cost, simple and scalable technique to fabricate correlated‐disorder nanostructures for light‐trapping in solar cells. This work investigates the control of polystyrene particle distribution in colloidal lithography, highlighting the importance of particle surface functionalization as well as the ability to tune the ...
Laura de Almeida, Jean‐Baptiste Doucet, Mathieu Arribat, Guilhem Almuneau, Stéphane Collin, Inès Revol   +5 more
wiley   +1 more source

Single‐Step Analog In‐Memory Matrix Computation in Three‐Dimensional Circuits

Advanced Intelligent Systems, EarlyView.
A wooden model illustrates a 3D memristive array designed for single‐step kernel convolutions. It shows how two‐dimensional input data are mapped into the 3D array and convolved in parallel with stored kernels. Color‐coded connection points represent programmed memory‐element values, with each color corresponding to a specific kernel weight.
Alireza Jaberi Rad, Koushik Kumar, Fatemeh Kiani, Yi Huang, Ali Abdel‐Maksoud, Zheshun Xiong, Yunzhi Ling, Wuyu Zhao, Qiangfei Xia   +8 more
wiley   +1 more source

Low‐Voltage Operation of IGZO Memtransistors Enabled by Coupling Enhancement Through 2T Drain‐Driven Operation for Neuromorphic Computing

Advanced Intelligent Systems, EarlyView.
A two‐terminal IGZO memtransistor enabling low‐voltage operation is demonstrated through coupling enhancement. By utilizing drain‐induced Fowler–Nordheim tunneling, the device achieves programming below 10 V with a large memory window and high on/off ratio.
Junhyeong Park, Sunyeol Bae, Yumin Yun, Chae‐Hwan Park, Donghyeon Lee, Soo‐Yeon Lee   +5 more
wiley   +1 more source

Nanoscale Rear‐Interface Architecture Enables 36.2 mA cm−2 Photocurrent in Ultrathin and Bifacial ACIGS Solar Cells Through Light Management

Laser &Photonics Reviews, EarlyView.
An array of SiOx nanopillars is developed on ITO transparent rear contacts through nanoimprint lithography to promote light scattering in 500–600 nm bifacial ACIGS solar cells. This architecture increases the short‐circuit current density by 7.8 and 7.6 mA cm−2 under front (up to 36.2 mA cm−2) and rear illumination, respectively, offering a scalable ...
Enzo J. Ribeiro, André F. Violas, António J. N. Oliveira, Elizaveta Yakovleva, Bárbara L. Sieira, Xavier L. Pinheiro, Saeed Bayat, Paulo A. Fernandes, Susanne Siebentritt, Marika Edoff, Pedro M. P. Salomé, Jennifer P. Teixeira   +11 more
wiley   +1 more source

Low Temperature Site‐Specific Pulsed Laser Annealing of MoS2

Small, EarlyView.
The application of laser pulses, of extremely short duration, is investigated as a potential new method to modify the atomic structure of ultrathin 2D materials for use in the creation of future electrical devices. The process is efficient, offering a site‐specific functionality, where regions of an electronic device that only requires annealing is ...
Nazar Farid, Aashi Gupta, Pavlina Metaxa, A Arifutzzaman, Hariprasad Kuduvan, Rahil Haria, Michele Conroy, Ian Campbell, Ageeth A Bol, James Connolly, Jun Lin, Ian Povey, Ray Duffy, Gerard M O'Connor   +13 more
wiley   +1 more source

Mitigating Residual FAI for Air‐Stable FAPbI3 LEDs

Small, EarlyView.
Treating FAI‐rich FAPbI3 perovskite films with the multifunctional molecule DEAET, combining a protonated amine and a thiol group, effectively regulates residual surface organic‐halide species, suppresses non‐radiative recombination, and modifies interfacial energetics. The resulting near‐infrared perovskite LEDs achieve 14% external quantum efficiency
Spyros Orfanoudakis, Konstantina Yannakopoulou, Julia Morat, Leonidas Tsetseris, Polychronis Tsipas, Stefania Skorda, Alexandros El Sachat, Feng Gao, Athanassios G. Kontos, Thomas Stergiopoulos   +9 more
wiley   +1 more source