Solar cells

In hydrogenated amorphous silicon/crystalline silicon (a-Si:H/c-Si) heterojunction (HJ) solar cell, the high contact resistance or high Schottky barrier at the back-surface field (BSF)/Indium Tin Oxide (ITO) is prejudicial to the majority carrier collections process, as it degrades the fill factor (FF), which in turn, cell efficiency.

16p viling 11-10-2024 1 1   Download

The wide investigation of zinc oxide (ZnO) nanorods is primarily driven by their exceptional utility in several industries, such as solar cells, sensors, photodetectors, photocatalysts, microchip technology, and piezoelectric transducers. There has been a growing focus in environmental defense applications on the use of ZnO nanorods as photocatalysts.

6p viling 11-10-2024 2 0   Download

This research employs a novel third-order shear deformation theory to investigate the static buckling and static bending behaviors of organic nanoplates, marking the first instance of such an approach being used. The formulas are computed using strain gradient theory to consider the impact of the size effect, where this size effect parameter is considered in both positive and negative cases.

15p vibecca 01-10-2024 2 0   Download

In this study, graphene oxide (GO) was prepared by the Hummers method. GO/CS/PVA fibers were prepared by an electrospinning method. The structure, morphology and size of the electrospun materials were characterized by X – ray diffraction (XRD) and a scanning electron microscope (SEM).

7p vikwong 29-09-2024 2 1   Download

A major challenge for outdoor uses of methylammonium lead halide (MAPbX3) solar cells is the poor durability of the perovskite film under humidity. This instability is due to limitations of the dipping or spin coating process in producing MAPbX3 films through a direct reaction between PbI2 and methylammonium iodide (MAI) in an organic solvent. In this study, we devised an eco-friendly and cost-effective method to fabricate MAPbX3 films using an aqueous solution of Pb(NO3)2 and MAI vapour. I

7p dianmotminh02 03-05-2024 9 2   Download

This thesis presents an evaluation of the mapping performance of a variety of SLAM algorithms that are freely available in the Robot Operating System (ROS), in conjunction with ranging data from various ranging sensors suitable for use onboard small UAS. To compare the quality of the generated maps, an existing metric was initially employed, however deficiencies noted in this metric led to the development of two new metrics. A discussion of both the existing and new map quality metrics, and the advantages and disadvantages of each, is presented as part of this thesis.

99p runthenight04 02-02-2023 10 2   Download

Acta Crystallographica Section C: Structural Chemistry specializes in the rapid dissemination of high-quality detailed studies of novel and challenging crystal and molecular structures of interest in the fields of chemistry, biochemistry, mineralogy, pharmacology, physics and materials science. The unique checking, editing and publishing facilities of the journal ensure the highest standards of structural reliability and presentation, while providing for reports on studies involving special techniques or difficult crystalline materials.

22p runordie3 27-06-2022 12 2   Download

Dưới tác động của cuộc Cách mạng công nghiệp lần thứ tư, ngành nông nghiệp thế giới đã và đang thực hiện chuyển đổi số hướng tới nền nông nghiệp thông minh (nông nghiệp 4.

8p vimarillynhewson 17-05-2022 53 8   Download

Undoped and Sn-doped ZnO films are deposited on glass substrates using a sol-gel spin coating technique with a doping concentration varying from 0% to 3 mol. The effects of Sn doping concentration on surface morphology, structural and optical properties of the ZnO films are investigated using scanning electron microscopy, an X-ray diffractometer and a UV-Vis-NIR system.

6p tamynhan9 02-12-2020 11 3   Download

This paper investigates how PbS coating layers influence the characteristics of GaAs single junction solar cells through I-V characteristic measurements, optical reflectance spectra, and quantum efficiencies.

6p tamynhan6 14-09-2020 14 2   Download

In this paper, the effects of the hot-spotted cell on PV module were evaluated. The experimental observation was based on 100 kW PV array composed of 20 PV modules. It was found that an increasing number of hot-spotted solar cells in a PV module would likely increase its output power loss.

7p lucastanguyen 01-06-2020 15 1   Download

Bài thuyết trình Các loại Solar Cells giới thiệu và phân loại các loại pin mặt trời, các loại pin mặt trời thế hệ thứ 1, 2, 3, và 4. Mời các bạn tham khảo bài thuyết trình để nắm bắt nội dung chi tiết, với các bạn chuyên ngành Vật lý thì đây là tài liệu hữu ích.

49p maiyeumaiyeu09 16-09-2016 174 25   Download

A look on energy, renewable energies, energy storage and synthetic fuels, hybrid architecture, fuel cells, hydrogen as a vector of energy of the future.The Earth resources are quite limited in quantity Many challenges to mankind in 21st century: development, health, water, food, demography, education, energy.In physics, energy (Ancient Greek: ἐνέργεια energeia "activity, operation"[1]) is a quantity that is often understood as the ability a physical system has to produce changes on another physical system.

156p dienquochuy 21-12-2012 82 21   Download

Ánh sáng, với năng lượng photon của nó, có thể cung cấp năng lượng để đưa một electron lên mức năng lượng cao hơn. Năng lượng photon được cho theo: Đủ năng lượng để đưa electron quay quanh E∞ cũng được gọi là năng lượng ion hóa (hiệu ứng quang điện bên ngoài). Tế bào quang điện chủ yếu là chuyển đổi cho các photon điện của ánh sáng nhìn thấy được, tia cực tím và hồng ngoại, do đó, nội bộ hiệu ứng hình ảnh xác định ảnh hưởng của ánh sáng trong một tế bào năng lượng mặt trời....

74p hoankhaktd 03-11-2012 163 43   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: New Si-based multilayers for solar cell applications

5p sting05 09-02-2012 55 6   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Characterization of silicon heterojunctions for solar cells

9p sting05 09-02-2012 39 5   Download

Test 45 Pronunciation 1. a. supper b. hungry c. pull d. punish c 2. a. have b. chance c. hand d. stand b 3. a. buck b. duck c. reduce d. structure c 4. a. borrow b. grow c. sparrow d. crowd d 5. a. leave b. weave c. weary d. steal c 6. a. chief b. thief c. deaf d. leaf c 7. a. smart b. cracker c. snack d. packet a Find the mistakes 8. If protect, a solar cell lasts for a long time and is a good source of energy. a. protect b. a solar c. lasts...

43p tengteng17 03-01-2012 129 7   Download

Tuyển tập các báo cáo nghiên cứu khoa học trên tạp chí khoa học vật lý quốc tế đề tài: Electrical Conductivity of Chlorophyll with Polythiophene Thin Film on Indium Tin Oxide as P-N Heterojunction Solar Cell

16p hoami_266 15-09-2011 68 6   Download

In this chapter, we will discuss a more accurate equivalent circuit for a PV cell. This circuit helps us to have better prediction and understanding of PV cell current-voltage characteristics as well as at different types of load connected to the PV panel, which is made up of an array of PV cells. Later in this chapter we will discuss the concept of maximum power point tracker (MPPT).

18p vanthang122141 13-05-2011 104 18   Download

In this chapter, we will find out how to get the most solar energy out of the sun by considering the time, the altitude angle, the radiation and the photovoltaic (PV) materials. A simple PV model helps to understand the mechanism of energy conversion - solar to electricity. We will further use a simple equivalent circuit to represent a PV cell to investigate its current-voltage characteristics.

14p vanthang122141 13-05-2011 111 18   Download