The use of a thin layer of zinc oxide nanoparticles as an electron-transport layer allows flexible perovskite solar cells to be fabricated with a power conversion efficiency as high as 15.7%.
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Herein we propose a new equivalent circuit including double heterojunctions in series to simulate the current–voltage characteristic of P–I–N planar structure perovskite solar cells. This new method can theoretically solve the dilemma of the parameter diode ideal factor being larger than 2 from an ideal single heterojunction equivalent circuit, which usually is in the
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The silicon heterojunction (SHJ) solar cell is considered as one of the most promising candidates for the next-generation high-efficiency crystalline silicon (c-Si) device [].Although the interdigitated back contact silicon heterojunction (IBC-SHJ) architecture resulted in the world-record efficiency of 26.63%, the both side-contacted SHJ architecture is still the
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Alcohol soluble titanium chelate TIPD (titanium (diisopropoxide) bis(2,4-pentanedionate)) was used as an electron transporting layer to form an ohmic contact with the negative electrode, aiming to enhance the charge extraction and suppress the charge recombination for high performance CH 3 NH 3 PbI 3 /PCBM-based PHJ perovskite solar cells.
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Planar heterojunction perovskite solar cells. Less- hysteresis. CH 3 NH 3 PbI 3. 1. Introduction. Sunlight is regarded as the most promising replacement for fossil fuels because it is a clean, cheap, abundant and renewable energy source. However, the cost of solar cells is still too high comparing to fossil fuels. To reduce the cost of the
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Organometal halide perovskites are promising photo-absorption materials in solar cells due to their high extinction coefficient, broad light absorption range and excellent semiconducting properties. The highest
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A solution processed MoO 3 /PEDOT:PSS bilayer structure is used as the hole transporting layer to improve the efficiency and stability of planar heterojunction perovskite solar cells. Increased hole extraction efficiency and
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The long exciton diffusion lengths and strong optical absorbance of recently reported NFAs open up the potential for efficient organic solar cells and photodetectors employing planar rather than bulk
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Her main research interest is pseudo-planar heterojunction organic solar cells. Xunfan Liao is a professor of chemistry at Jiangxi Normal University. He received his PhD degree from Nanchang University under the supervision of Prof. Yiwang Chen and Prof. Alex K.-Y. Jen in 2018 and worked as a visiting student at the University of Washington in
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Perovskite solar cells (PSCs) have emerged as an attractive photovoltaic technology thanks to their outstanding power conversion efficiency (PCE). H. J. Efficient planar heterojunction
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Nonhalogenated Solution-Processed Donor-Dispersed Planar Heterojunction Organic Solar Cells with Enhanced Homogeneity in Vertical Phase Separation. Shilin Li, Shilin Li. School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191 P. R. China Herein, a conceptual approach of donor
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The development of medium-bandgap solar cell absorber materials is of interest for the design of devices such as tandem solar cells and building-integrated photovoltaics. The recently developed perovskite solar cells can be suitable
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Abstract. High-performance planar heterojunction (PHJ) perovskite solar cells (PrSCs) with MAPbI 3 perovskite films were fabricated using a facile, environmentally benign, efficient and low-cost dip-coating deposition approach on a bilayered ZnO/TiO 2 electron transport system from aqueous non-halide Pb(NO 3) 2.Outstanding performance of PrSCs was achieved due to the
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We have built vapour-deposited organometal trihalide perovskite solar cells based on a planar heterojunction thin-film architecture that have a solar-to-electrical power
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Liang, P.-W. et al. Additive enhanced crystallization of solution-processed perovskite for highly efficient planar-heterojunction solar cells. Adv. Mater. 26, 3748–3754 (2014).
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Here, we show the construction of a stable solar photocatalyst cell (NiO x /CsPbBr 3 /TiO 2), with a planar heterojunction structure, where the NiO x and TiO 2 serve not only as charge carrier transportation layers but also as MHP protecting layers.
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Charge Carrier Dynamics in Planar Heterojunction Organic Solar Cells. Yexiao Huang, Yexiao Huang. Center on Nanoenergy Research, Guangxi Colleges and Universities Key Laboratory of Blue Energy and Systems Integration, Carbon
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Efficient and hysteresis-less pseudo-planar heterojunction perovskite solar cells fabricated by a facile and solution-saving one-step dip-coating method
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Solution-processed Sb 2 S 3 planar heterojunction solar cells have shown great progress in power conversion efficiency (PCE) in recent years. However, a conventional solution process yields Sb 2 S 3 films with a small grain size. Herein, an alcohol vapor post-annealing strategy is reported that uses alcohol vapors to facilitate grain growth of Sb 2 S 3 films during annealing, achieving films
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PHJ perovskite solar cells can avoid the use of high-temperature sintered mesoporous metal oxides, enabling simple processing and the fabrication of flexible and tandem perovskite solar cells. In planar heterojunction materials, hole/electron transport layers are introduced between a perovskite film and the anode/cathode.
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A new amino-functionalized polymer, PN 4 N, was developed and applied as an efficient interlayer to improve the cathode interface of fullerene/perovskite (CH 3 NH 3 PbI x Cl 3−x) planar heterojunction solar cells.The PN 4 N polymer is soluble in IPA and n-BuOH, which are orthogonal solvents to the metallohalide perovskite films, and therefore they can be spuncast on the
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Our study mainly focuses on NiO-based inverted p-i-n planar heterojunction perovskite solar cells. The cell structure is FTO/NiO/interlayer/perovskite/LiF/C 60 /BCP/Cu,
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This understanding, together with the improved cathode interface using bilayer-structured electron transporting interlayers of [6,6]-phenyl-C61-butyric acid methyl ester
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It also reveals the importance of polarity control in the performance of planar heterojunction solar cells based on organic–inorganic perovskite materials. Remaining questions, such as the change in optical absorption, the energy band alignment depth profile, and hysteresis behavior in Ag-incorporated perovskite devices, are intriguing topics
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Here, an easily solution-processed parallel planar heterojunction (PPHJ) strategy and related principle are developed to prepare efficient multiple planar heterojunction (PHJ) solar cells, and the PPHJ strategy boosts the efficiency of solution-processed Sb 2 S 3 solar cells up to 8.32 % that is the highest amongst Sb 2 S 3 devices.
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As a result, the P-PHJ device exhibits an outstanding power conversion efficiency of 19.32% with an excellent short-circuit current density of 26.92 mA cm −2, much higher than planar binary heterojunction (17.67%) and ternary bulk heterojunction (18.49%) devices. This research proves a simple but effective method to provide an avenue for
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Gong X, Sun Q, Liu S, et al. Highly efficient perovskite solar cells with gradient bilayer electron transport materials. Nano Lett, 2018, 18: 3969–3977. Article CAS Google Scholar Kim H, Lim KG, Lee TW. Planar heterojunction organometal halide perovskite solar cells: Roles of interfacial layers.
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We report a facile one-step method to fabricate planar heterojunction perovskite solar cells by chemical vapor deposition (CVD), with a solar power conversion efficiency of up to 11.1%.
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Solar cells based on the as-prepared films achieve high power conversion efficiency of 12.1%, so far the highest efficiency based on CH 3 NH 3 PbI 3 with the planar heterojunction configuration. This method provides a
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Recently, perovskite solar cells (PSCs) with inverted planar heterojunction structures, wherein a polycrystalline perovskite film is sandwiched between a hole- and an electron-extraction layer, have gained attention because they offer the promise of easy fabrication, compatibility with flexible substrates, versatility of energy-band engineering, and the possibility
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Metal halide perovskite solar cells, as a major focus in photovoltaic (PV) research over the past decade, now demonstrate a champion certified efficiency of 25.7% for a single-junction device , on a par with the best crystalline silicon cells bining perovskite with silicon to form tandem solar cells can further boost the efficiency to 31.25% , which appears
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Metal halide perovskite solar cells (PSCs) have attracted extensive research interest for next-generation solution-processed photovoltaic (PV) devices because of their high solar-to-electric power conversion efficiency
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Because the preparation of high-quality mesostructured film and compact-TiO 2 layers requires high-temperature processes, their application in simpler architectures is limited. 19, 20) This limitation has been circumvented by several groups 21, 22) through the development of planar heterojunction perovskite solar cells without a mesoporous TiO 2 layer.
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Solar cells based on the as-prepared films achieve high power conversion efficiency of 12.1%, so far the highest efficiency based on CH 3 NH 3 PbI 3 with the planar heterojunction configuration. This method provides a simple approach to perovskite film preparation and paves the way for high reproducibility of films and devices.
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Fabrication of high coverage MASnI 3 perovskite films for stable, planar heterojunction solar cells Thus, we were able to significantly improve the coverage of the perovskite films. A planar perovskite solar cell with a film prepared using this method showed an efficiency of 2.14 ± 0.35% with an open circuit voltage of 0.45 ± 0.01 V
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It is found that a graded band structure can form in the 2D-3D perovskite-perovskite heterojunction. As a result, the 2D perovskite was used as the hole transport material (HTM) to overcome the high cost and instability issues caused by the traditional organic HTMs. By further elaborative conductivity engineering, stable and efficient solar cell devices can be
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The structure of planar heterojunction perovskite based solar cell is FTO/ETL(SnO 2 / ZnO)/absorber layer (FA-1/FA-2/FA-3)/HTL (Spiro OMeTAD)/metal rear electrode (Au/ Ti 3 C 2 Tx) shown in Fig. 2a and its SCAPS 1-D layout structure in Fig. 2b. Dierent mate-rials have been used in the structure of perovskite based planar heterojunction solar cell.
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Planar heterojunction organometal halide perovskite solar cells: roles of interfacial layers. Hobeom Kim†, Kyung-Geun Lim† and Tae-Woo Lee * Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea.
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An easily solution-processed parallel planar heterojunction (PPHJ) strategy boosts the efficiency of Sb 2 S 3 solar cells up to 8.32 %, by integrating the distinctive
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Perovskite solar cells have attracted much attention due to their high power conversion efficiency and low fabrication cost. The efficiency of the devices depends on the charge transport and charge extraction at the interface between the perovskite and electron or hole transport material. In this study, we u
Learn MoreIn the same batch, the best solution-processed planar heterojunction perovskite solar cell produced a short-circuit photocurrent of 17.6 mA cm −2, an open-circuit voltage of 0.84 V and a fill factor of 0.58, yielding an overall efficiency of 8.6%.
Learn more. An easily solution-processed parallel planar heterojunction (PPHJ) strategy boosts the efficiency of Sb 2 S 3 solar cells up to 8.32 %, by integrating the distinctive structures of Sb 2 S 3 layer and the duplexity of CH 3 NH 3 PbI 3 layer in charge transportation.
Solution-processed solar cells based on inorganic heterojunctions provide a potential approach to the efficient, stable and low-cost solar cells required for the terrestrial generation of photovoltaic energy. Antimony trisulfide (Sb 2 S 3) is a promising photovoltaic absorber.
Solar cells based on the as-prepared films achieve high power conversion efficiency of 12.1%, so far the highest efficiency based on CH 3 NH 3 PbI 3 with the planar heterojunction configuration. This method provides a simple approach to perovskite film preparation and paves the way for high reproducibility of films and devices.
Current-density/voltage curves of the best-performing solution-processed (blue lines, triangles) and vapour-deposited (red lines, circles) planar heterojunction perovskite solar cells measured under simulated AM1.5 sunlight of 101 mW cm −2 irradiance (solid lines) and in the dark (dashed lines).
After these successful demonstrations of mesostructured TiO 2 -based PeSCs, it was revealed that planar heterojunction (PHJ) architectured PeSCs are also possible due to the long carrier lifetimes and diffusion lengths of perovskite materials 22, 23.
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