Results 111 to 120 of about 13,672 (259)

PbS colloidal quantum dots imagers: From single devices to arrays, flexible platforms, and CMOS‐integrated systems

FlexMat, EarlyView.
Abstract Imagers operating in the visible to near‐infrared (NIR) range play an important role in applications such as industrial sorting, security surveillance, and autonomous driving. However, conventional imaging technologies based on silicon and III–V semiconductors suffer from several limits, including restricted spectral range, high fabrication ...
Xin Hong, Songdi Zhang, Runtian Han, Peng Wang, Wenjie Deng   +4 more
wiley   +1 more source

Harnessing the Potential of LLMs in Hospital Management: Insights Into Medical Data Inquiry

The International Journal of Health Planning and Management, EarlyView.
ABSTRACT Background Considering the rapid expansion of hospital operations and the increasing digitisation of medical data, there is a pressing need for efficient and intelligent methods to process and analyse large‐scale medical data. Methods We integrated the QLoRA algorithm with ChatGLM2‐6b, Llama2‐7b, and Llama2‐13b models, fine‐tuning them on a ...
Jiaxi Li, Yu Zhang, Jing Zhao, Shengyang He, Danni Li   +4 more
wiley   +1 more source

Degradation Mechanism and Stabilization Strategies for Large‐Area Perovskite Solar Modules

Interdisciplinary Materials, EarlyView.
This review summarizes the degradation mechanisms specific to perovskite solar modules, focusing on large‐area fabrication and uniformity‐related degradation, cell interconnection and degradation related to scribe processing, device encapsulation, reverse‐bias degradation and potential‐induced degradation, and outlines corresponding mitigation ...
Peng Xu, Xinzhu Li, Xuezheng Liu, Xinyu Zhao, Jinzhan Cheng, Wanlin Guo, Xiaoming Zhao   +6 more
wiley   +1 more source

Chloride–bromide co‐engineering enables operationally stable quasi‐2D tin perovskite solar cells under ambient conditions

InfoScience, EarlyView.
Mixed halide perovskite systems consisting of iodide and bromide ions often suffer phase segregation. The segregation introduces instability, which can manifest in faster degradation of devices under operation. Here, we introduced a controlled amount of chloride ions into tin perovskite (TP) film containing iodide and bromide ions; the chloride ions ...
Jorim O. Obila, Chunqing Li, Masatoshi Yanagida, Yasuhiro Shirai, Yuko Takeoka   +4 more
wiley   +1 more source

Efficient near‐infrared light‐emitting diodes via enlarging grains of tin‐based perovskites

InfoMat, EarlyView.
In this work, penicillamine molecules are introduced into Sn‐based perovskites to slow crystallization, yielding large‐grain films with reduced grain boundaries and passivated defects. The resulting perovskite light‐emitting diodes achieve a maximum external quantum efficiency of 17.5% at 894 nm and an operational half‐lifetime of 0.95 h under current ...
Piaoyang Shen, Shuo Ding, Shaowen Chen, Chang Gu, Chaoyu Xiang   +4 more
wiley   +1 more source

Deep‐DSP2: Cross‐Domain Deep Learning Direct MR Signal Prediction for RF Shielding‐Free MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a deep learning approach to electromagnetic interference (EMI) elimination in the presence of dynamically varying electromagnetic coupling relationships (i.e., spectral domain transfer functions) between MRI receive and EMI sensing coils for RF shielding‐free ultra‐low‐field (ULF) MRI.
Jiahao Hu, Yujiao Zhao, Alex T. L. Leong, Ed X. Wu   +3 more
wiley   +1 more source

Impact of polymer aging on main‐chain poly(fullerene)s with halide chain‐ends for inverted perovskite solar cells

Polymer International, EarlyView.
Subtle variations in halogen chemistry significantly affect the aging behavior of polymeric electron transport layers in inverted perovskite solar cells, underscoring the importance of precise chemical design for enhancing long‐term stability. Abstract As perovskite solar cells (PSCs) advance toward commercialization, the need for stable and easily ...
João V. Paulin, Gabriel L. Nogueira, Douglas H. N. Santos, Marco Antônio G. B. Gomes, Valdemiro P. Carvalho‐Jr, Luiz C. Silva Filho, Roger C. Hiorns, Carlos F. O. Graeff   +7 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

Numerical simulation and performance optimization of InPbI₃ perovskite solar cells. [PDF]

Discov Nano
Fasanmi PO, Kheswa BV, Al-Dmour H.
europepmc   +1 more source

Investigation of Tin Oxide Atomic Layer Deposition on the Performance of Evaporated Perovskite Solar Cells

Small, EarlyView.
Impact of co‐reactants and their doses utilized during the atomic layer deposition of SnOx on perovskite/C60 structures on the performance of p‐i‐n perovskite solar cells. ABSTRACT Although tin oxide (SnOx) layers grown using atomic layer deposition (ALD) are routinely employed in p‐i‐n perovskite solar cells (PSCs), the correlation between ALD process
Bhavya Rakheja, Adam Hultqvist, Maart Van Druenen, Pontus Törnblom, Fredrik Larsson, Jörgen Olsson, Carl Hägglund, Evelyn Johannesson, Laurent Duda, Håkan Rensmo, Erik M. J. Johansson, Erik Wallin, Tobias Törndahl   +12 more
wiley   +1 more source