We present a highly scalable Monte Carlo (MC) three-dimensional photon transport simulation platform designed for heterogeneous computing systems. Through the development of massively parallel MC algorithm using Open Computing Language framework, this research extends our existing graphics processing unit (GPU)-accelerated technique to vendor-independent environment, achieving significantly improved performance and software portability. A number techniques are investigated achieve portable...

Graphics Processing Units (GPUs) can easily outperform CPUs in processing large-scale data parallel workloads, but are considered weak serialized tasks and communicating with other devices. Pursuing a CPU-GPU collaborative computing model which takes advantage of both devices could provide an important breakthrough realizing the full performance potential heterogeneous computing. In recent years platform vendors runtime systems have added new features such as unified memory space dynamic...

Abstract The perovskite photovoltaic field has developed rapidly within a decade. In particular, formamidinium (FA)‐rich allows broad absorption spectrum, and is considered to be one of the most promising materials. Great progress been achieved, recorded high‐efficient solar cells (PSCs) used FA‐rich light layer. However, black α‐phase lead iodide (FAPbI 3 ) easily transforms into an undesirable δ‐phase at low temperature. Thus, researchers have put lot effort deeply understanding phase...

Optoelectronic reconfigurable logic gates are promising candidates to meet the multifunctional and energy-efficient requirements of integrated circuits. However, complex device architectures need more power hinder applications. Here, we design vertical field-effect transistors (VFET) based on two-dimensional (2D) graphene/MoS

Abstract Image processing has become a quintessential data‐intensive computational task, and leveraging sensors with real‐time image been focused for the development of photodetectors. However, managing responsivity normally needs an additional gate voltage, which seriously limits application in resource‐constrained edge computing. Here, bias‐dependent photodiode (BD‐PD) semi‐gate interconnecting drain based on 2D MoS 2 /CIPS heterojunction is proposed, exhibiting ability to autonomously...

The spectral recognition is key for efficient machine vision to obtain high imaging quality of color target objects. However, the bidirectional response within a single band sensors still challenging in-site recognize objects from multi-spectral context. Here, inspired by avian eyes, we propose tetrachromatic-bidirectional synaptic transistor based on WOx/WSe2 heterojunctions with ultraviolet (UV)-photoactive floating gate CdS and realize bio-avian enhanced image improved under background....

The key for fabricating efficient organic/n‐Si planar heterojunction solar cells is the organic semiconductor layer, which governs steps in photocarrier harvesting such as charge carrier separation and extraction. Typical semiconductors, however, are inadequate to yield good device performance due their low electrical conductivities undesirable work functions. Herein, a method proposed boost concentration poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) from 10 18 22 cm −3...

The adaptive response of intelligent devices lays the foundation to integrating multiple functions at one device level. Here, with combination experimental observation and theoretical calculation, we report a structure ferroelectric field-effect diode (Fe-FED) based on gated WSe2/MoS2 van der Waals heterojunction (vdWH) channel. polarization-tuned photovoltaic is exhibited nonvolatility, which completely distinctive from gate-tunable conductance state conventional devices. Moreover,...

Heterogeneous systems consisting of multi-core CPUs, Graphics Processing Units (GPUs) and many-core accelerators have gained widespread use by application developers data-center platform developers. Modern day heterogeneous evolved to include advanced hardware software features support a spectrum patterns. programming frameworks such as CUDA, OpenCL, OpenACC all introduced new interfaces enable utilize on these platforms. In emerging applications, performance optimization is not only limited...

A methodology has been developed to obtain a cubic structure of the mixed halide perovskite CH₃NH₃PbI_3−xCl_xthat involves thermal annealing vacuum-deposited layer.

GPU applications have traditionally run on PCs or in larger scale systems. With the introduction of Tegra line mobile processors, NVIDIA expanded types systems that can exploit massive parallelism offered by computing architectures. In this paper, we evaluate suitability X1 processor as a platform for embedded model predictive control. MPC relies real time solution convex optimization problem to compute control input(s) system. Relative traditional techniques such PID, is very...

Speech recognition is used in a wide range of applications and devices such as mobile phones, in-car entertainment systems web-based services. Hidden Markov Models (HMMs) one the most popular algorithmic approaches applied speech recognition. Training testing HMM computationally intensive time-consuming. Running multiple concurrently with could overwhelm compute resources, introduce unwanted delays processing, eventually dropping words process due to buffer overruns. Graphics processing...

The Monte Carlo (MC) method is widely recognized as the gold standard for modeling light propagation inside turbid media. Due to stochastic nature of this method, MC simulations suffer from inherent noise. Launching large numbers photons can reduce noise but results in significantly greater computation times, even with graphics processing units (GPU)-based acceleration. We develop a GPU-accelerated adaptive nonlocal means (ANLM) filter denoise simulation outputs. This effectively suppress...

We have successfully developed a C60:LiF/BCP (bathocuproine) bilayer-buffer structure to optimize both the light absorption enhancement and exciton-blocking at cathode interface of small molecular photovoltaic cell based on archetypical CuPc/C60 structure. The function C60:LiF layer is serve as an optical spacer found yield peak power conversion efficiency (PCE) with 50 wt. % LiF thickness 30 nm. A BCP added between optimized Al metal electrode barrier for excitons. This combined yields...

Abstract Metal halide perovskites are widely employed in photodetectors (PDs) due to their exceptional photoelectric conversion ability. However, the high dark current induced by defect states during perovskite crystallization has not been well resolved, which enormously deteriorates sensitivity of PD. Herein, a vacuum‐assisted template‐confined growth method is proposed successfully fabricate high‐quality single crystal microwire arrays with low and superior characteristics. Experimentally...

Abstract Optoelectronic logic gates (OELGs) are promising building blocks of edge extraction, image recognition, and data encryption in circuits. However, implementing complex OELGs based on CMOS devices needs additional circuit configuration due to the fixed photodetection mode, which inevitably makes manufacturing process chip complicated large. This work proposes a ferroelectric‐switchable photodetector (FeS‐PD) 2D α‐In 2 Se 3 /WSe heterojunction, can implement OELG functions. The FeS‐PD...

The growth in demand for heterogeneous accelerators has stimulated the development of cutting-edge features newer accelerators. programming frameworks such as OpenCL have matured over years and introduced new software developers. We explore one these frameworks, 2.0. To drive our study, we consider a number 2.0 using four popular applications from range computing domains including signal processing, cybersecurity machine learning. These include: 1) AES-128 encryption standard, 2) Finite...

Intensity simulation of X-ray scattering from large twisted cellulose molecular fibrils is important in understanding the impact chemical or physical treatments on structural properties such as twisting coiling. This paper describes a highly efficient method for diffraction patterns complex using atom-type-specific pair-distance quantization. Pair distances are sorted into arrays which labelled by atom type. Histograms pair each array computed and binned resulting population distributions...

The unsubstituted copper phthalocyanine (CuPc) single crystal nano columns were fabricated for the first time as chlorine (Cl2) gas sensors in this paper. of CuPc have been prepared on different substrates via template-free physical vapor deposition (PVD) approach. growth mechanism column quartz was explored and same condition used other including glass, sapphire (C-plane<0001>, M-plane<101¯0>, R-plane<11¯02>), Si SiO2/Si came to a conclusion, which...

Graphics Processing Units (GPUs) have become an attractive platform for accelerating challenging applications on a range of platforms, from High Performance Computing (HPC) to full-featured smartphones. They can overcome computational barriers in wide data-parallel kernels. GPUs hide pipeline stalls and memory latency by utilizing efficient thread preemption. But given the demands hierarchy due growth number computing cores on-chip, it has increasingly difficult all these stalls. In this...