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Unlike photovoltaic cells and photodetectors, light-emitting devices will require active-layer architectures that maximize the interaction of minority carriers. In monolayer-thick heterointerfaces ...
Unlike photovoltaic cells and photodetectors, light-emitting devices will require active-layer architectures that maximize the interaction of minority carriers. In monolayer-thick heterointerfaces ...
Abstract The paper presents a promising solution for photovoltaic modules that provides overcoming the main conceptual limitation for the concentrator concept in photovoltaics—the impossibility to convert diffused (scattered) solar radiation coming to the panel of sunlight concentrators. The design of a hybrid concentrator-planar photovoltaic module …
This work reports core–shell photovoltaic nanocells to enhance the photoresponse of the active layer and realize photolithographic manufacturing of large-scale-integrated organic ...
Our findings suggest that the BP/Sc2CF2 heterostructure is a promising candidate for photovoltaic solar cells. Discover the world''s research 25+ million members
The design of van der Waals (vdWs) heterostructures are of novel great importance to boosting the efficiency of photovoltaic devices. Herein, we propose first …
GaN/InGaN double-heterostructure photovoltaic cells have been fabricated and their photovoltaic characteristics were also been theoretically calculated in this work. The theoretical conversion efficiency for GaN/InGaN photovoltaic cells with In composition of 10%, 12%, and 14% were 1.80%, 2.04%, and 2.27%, respectively.
erostructure could be a promising candidate for photovoltaic solar cells. More interestingly, the electronic properties and band alignment in the BP/Sc 2 CF 2 heterostructure can be tuned by ap-
Based on this heterostructure, we achieved a champion efficiency of 20.7%, which is the highest value reported for Cs x FA 1-x ... The J-V characteristics of the photovoltaic cells were obtained using a Keithley 2400 Source Meter under …
We demonstrate an external power conversion efficiency of (3.6±0.2)% under AM1.5 spectral illumination of 150 mW/cm2 (1.5 suns) with vacuum-deposited copper phthalocyanine/C60 thin-film double-heterostructure photovoltaic cells incorporating an exciton-blocking layer (EBL). We show that the anode work function influences the photocarrier …
3 · This negatively impact the performance of SC-based photovoltaic devices, as low carrier mobility contributes to weaker photocurrent. To improve the intrinsic carrier transport …
Abstract: : Objective To develop an aluminum gallium arsenide (AlGaAs) electronic retinal implant and to compare the stability of this implant to the silicon electronic retinal implant in an animal model in vivo. Additionally, to examine whether coating the AlGaAs implant with titanium isolates its components (Aluminum, Gallium, Arsenic) from the intraocular environment.
Photovoltaics, which converts solar energy to electricity, is a practical and feasible solution to such challenges like energy crisis and environmental pollution [3]. Therefore, researchers have paid much attention to the photovoltaic (PV) technology to restore the remaining fossil fuels [4, 5]. The photovoltaic solar cells consist of hole rich ...
The morphology influence on the photovoltaic conversion efficiency of the dye-sensitized solar cells (DSSC) assembled with different ZnO photoanodes was investigated by measuring current density ...
researchers have paid much attention to the photovoltaic (PV) technology to restore the remaining fossil fuels [4, 5]. The photovoltaic solar cells consist of hole rich materials (p-type) sandwiched with electron-rich material (n-type) to form most commonly used p-n
We demonstrate an external power conversion efficiency of (3.6±0.2)% under AM1.5 spectral illumination of 150 mW/cm 2 (1.5 suns) with vacuum-deposited copper phthalocyanine/ C 60 thin-film double-heterostructure photovoltaic cells incorporating an exciton-blocking layer (EBL). ...
A silicon heterojunction solar cell that has been metallised with screen-printed silver paste undergoing Current–voltage curve characterisation An unmetallised heterojunction solar cell precursor. The blue colour arises from the dual-purpose Indium tin oxide anti-reflective coating, which also enhances emitter conduction. A SEM image depicting the pyramids and …
Heterostructures within optoelectronic devices offer unique control of the electron and hole energy levels throughout the device 1,2,3.For example, in photovoltaic (PV) devices, energy band ...
A model describing heterostructure solar cells based on zinc and copper oxides is developed. Seed layers of ZnO and CuO are synthesized by spray pyrolysis. Local current-voltage characteristic of ...
We demonstrate double-heterostructure copper phthalocyanine/C60 organic photovoltaic cells with series resistances as low as 0.1 Ω cm2. A high fill factor of ∼0.6 is achieved, which is only slightly …
Interfacial electronic structures in an organic double-heterostructure photovoltaic cell J. X. Tang; J. X. Tang 1 Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR,
Ge photovoltaic cells based on GaAs/Ge heterostructures have been produced by a combination of metal-organic chemical-vapor deposition and Zn diffusion from the gas phase. The cells are characterized by increased photocurrent and open-circuit voltage. The calculated efficiency of a Ge solar cell under concentrated sunlight exceeds 5.5%. The photocurrent achieved in a Ge …
Journal of Materials Science: Materials in Electronics - The performance of CH $$_{3}$$ NH $$_{3}$$ PbI $$_{3}$$ based perovskite materials deposited on Al-doped ZnO film is correlated with carrier... X-ray diffraction (XRD) pattern of the heterostructure in Fig. 1(b) shows that the Al–ZnO layer exhibits a strong diffraction peak along (002).
A model describing heterostructure solar cells based on zinc and copper oxides is developed. Seed layers of ZnO and CuO are synthesized by spray pyrolysis. To form a bulk heterojunction, ZnO nanorods are grown by hydrothermal synthesis. The morphological, electricaland optical properties of the fabricated structures are investigated.
Heterostructure solar cells based on III–V compounds are studied. Record-high efficiencies are obtained for solar cells based on AlGaAs/GaAs heterostructures: 24.6% for 100-fold concentration of sunlight in outer space (AM0) and 27.5% for 100-fold concentration of the light on the ground (AM1.5). A substantial increase in radiation resistance is obtained for solar cells with a built-in …
The J-V characteristics of the photovoltaic cells were obtained using a Keithley 2400 Source Meter under simulated one-sun AM 1.5G illumination (100 mW·cm −2) with a solar simulator (SS-F5-3A, Enli Tech) whose intensity was calibrated by a certified standard silicon solar cell (SRC-2020, Enli Tech).
Interfacial electronic structures in an organic double-heterostructure photovoltaic cell J. X. Tang; J. X. Tang 1 Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong 2 ...
Heterostructures based on atomically thin semiconductors are considered a promising emerging technology for the realization of ultrathin and ultralight photovoltaic solar …
The formed low-/three-dimensional heterostructure constructs gradient heterojunction. •. The heterojunction effectively relieves the lattice strain. •. The halogen (X) in the BzChX can passivate the halogen vacancy defects. •. …
Nanoscale phase management of the 2D/3D heterostructure toward efficient perovskite solar cells Author links open overlay panel Hao Gu a 1, Annan Zhu a 1, Junmin Xia b 1, Wang Li a, Jiahao Zheng a, Tao Yang c, Shengwen Li a, Nan Zhang c d, Shiliang Mei e, Yongqing Cai a, Shi Chen a, Chao Liang c d, Guichuan Xing a
The design of van der Waals (vdWs) heterostructures are of novel great importance to boosting the efficiency of photovoltaic devices. Herein, we propose first-principles hybrid density functional theory calculations for a two-dimensional gallium selenide/carbon-nitride (GaSe/C2N) vdWs heterostructure by investigating its photovoltaic performance, electronic and …
The systematic analysis of the structural, optical, electric and photovoltaic properties of N-CQDs/MoS 2 /ITO heterostructure based devices have been performed, and their photovoltaic cell parameters are well explained. Fabrication of such a photovoltaic device on a glass substrate would be the best choice in the direction of a cost-effective ...
Photogenerated hot carriers can be harnessed in spatially confined photovoltaic materials (2D van der Waals heterostructures), owing to slow hot carrier cooling and restricted …
vertical heterostructure: a potential photovoltaic absorber Manushi J. Patel1, Narayan N. Som2, ... when utilized as an absorber layer in photovoltaic cells but eciency of CsPbBr 3 monolayer for ...
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