Antimony selenide (Sb 2 Se 3) thin films are attractive light-absorbing materials used in low-cost and highly efficient thin-film solar cells order to increase the efficiency of Sb 2 Se 3 solar cells based on a tin oxide (SnO 2) buffer layer, an ultrathin cadmium sulfide (CdS) film was introduced at the interface between the fluorine doped SnO 2 glass (FTO) and the …
Inorganic perovskite CsPbI 3 has exhibited promising performance in single-junction solar cells, but the grain boundaries (GBs) in its film cause the formation of the defects with deep energy levels (such as iodide vacancy (V I)) and impede the transport of carriers, worsening the efficiency and stability of the solar cells. ...
This method greatly improves the carrier collection efficiency in CZTS solar cells, leading to an average J SC boost of ≈2 mA cm −2 and significant increase of FF and V OC, enabling 10.3% efficient Cd-free champion cells.
By this strategy, the Y6-based solar cell delivers a high-power conversion efficiency of 15.7% with both conventional and inverted architecture. By this research, we …
Improved charge extraction in inverted perovskite solar ...
Polythiophenes with unprecedented photovoltaic performance are developed for organic solar cells (OSCs). A prominent efficiency of 17.2% has been achieved, which is the new efficiency record and represents a big breakthrough for polythiophene-based OSCs. Benefiting from the intrinsic structural simplicity and …
Graphene oxide (GO) is employed as a hole conductor in inverted planar heterojunction perovskite solar cells, and the devices with CH3NH3PbI3−xClx as absorber achieve an efficiency of over 12%. The perovskite film grown on GO exhibits enhanced crystallization, high surface coverage ratio as well as preferred
In Situ Iodide Passivation Toward Efficient CsPbI 3 ...
The efficiency of solar cells with high-area, nanostructured surfaces is limited by surface and Auger charge-recombination processes, which can be slowed through appropriate levels of junction doping.
Volatile Perovskite Precursor Ink Enables Window Printing ...
William Yuan''s 3-D cell combines both, with highly-efficient and powerful results. "[This solar cell] would make solar energy actually a viable energy source for the Pacific Northwest," says Yuan. William Yuan''s research has yielded him a $25,000 scholarship and
As a result, the best performance was obtained with N3, achieving a PCE of 16.0% in binary devices. Further device optimization using ternary strategy, by …
Organic semiconductors offer the advantage of high optical absorption and tunable energy levels, enabling thin-film solar cells with high light-to-electron conversion …
Strained hybrid perovskite thin films and their impact on the ...
Article Molecular engineering of hole-selective layer for high band gap perovskites for highly efficient and stable perovskite-silicon tandem solar cells Guoliang Wang,1,2,9 Jianghui Zheng,1,2,3,4,9,* Weiyuan Duan,5,9 Jiong Yang,6,9 Md Arafat Mahmud,1,2 Qing Lian,7 ShiTang,1,2 ChwenhawLiao,1,2 JuemingBing,1,2 JianpengYi,1,2 Tik Lun Leung,1,2 …
As a result, the all-inorganic Sb 2 S 3 solar cell with a Sb 2 Se 3 HTL greatly increases the power conversion efficiency from 2.7% to 5.8% and the fill factor from 40% to 55.4%. The additional Sb 2 Se 3 /Au interface with matched energy-level alignments reduces the back-contact barrier and facilitates hole transport and collection.
The CsPbI 3 solar cell shows a considerable power conversion efficiency of 20.1% with an open-current voltage of 1.18 V and a high fill factor of 83.5% and excellent working stability.
Yuan J, Zhang Y, Zhou L, et al. Single-junction organic solar cell with over 15% efficiency using fused-ring acceptor with electron-deficient core. Joule, 2019, 3: …
and reverse-bias-stable perovskite solar cells
Among the various photovoltaic (PV) technologies, solution-processable organic solar cells (OSCs) have attracted worldwide interest as inexpensive renewable power sources. This promising technology is favored due to its advantages including low-cost, lightweight, and potential for large-area device fabrication on flexible substrates through roll-to-roll …
Grain boundary trap passivation in perovskite films has become one of the most effective strategies for suppressing the charge recombination and enhancing the photovoltaic performance of perovskite solar cells, whereas the relevant trap-state properties and the charge carrier dynamics need to be further clar
Stable electron beam evaporation-prepared MoO 3 hole-transport layer for Sb 2 (S,Se) 3 solar cells for the first time. MoO 3 layer can effectively enhance the hole mobility and inhibit the carrier recombination of the device. Sb 2 (S,Se) 3 with MoO 3 HTL achieved a 7.2 % efficiency based on a high current density of 16.53 mA cm-2.
The anisotropic electronic properties of the perovskite crystals originating from their non-cubic crystal structures can potentially give rise to the grain orientation correlated photovoltaic device performance. Here we report that an organic solvent vapor atmosphere introduced during the spin-coating and fo
Organic solar cells have achieved rapid development over the last few years, benefitting from the emerging of new non-fullerene acceptors (NFAs). The reported power conversion efficiency of OSCs has achieved over 18% up to now, however, the inferior stability issue ...
Yuan, J. et al. Band-aligned polymeric hole transport materials for extremely low energy loss α-CsPbI 3 perovskite nanocrystal solar cells. Joule 2, 2450–2463 (2018). Article Google Scholar
A new class of non-fullerene acceptor, Y6, by employing a ladder-type electron-deficient-core-based central fused ring with a benzothiadiazole core is reported. Organic photovoltaics made from Y6 in conventional and inverted architectures each exhibited a high efficiency of 15.7%, measured in two separate labs. Inverted device …
Herein, a new A-DA′D-A structured small molecule acceptor named m-TF9, containing semi-perfluoroalkyl chains, was designed and synthesized for highly efficient organic solar cells (OSCs). …
In this work, four-terminal (4T) tandem solar cells were fabricated by using a methylammonium lead iodide (MAPbI3) perovskite solar cell (PSC) as the front-cell and a lead sulfide (PbS) colloidal quantum dot solar cell …
The power conversion efficiency of ternary organic solar cells (TOSCs), consisting of one host binary blend and one guest component, remains limited by large …
Sb 2 S 3 has attracted great research interest very recently as a promising absorber material for thin film photovoltaics because of their unique optical and electrical properties, binary compound and easy synthesis. Sb 2 S 3 planar solar cells from evaporation method without hole-transport layer (HTM) assistance suffer from sulfur …
Rational molecular design of n-type organic semiconductors with strong near-infrared absorption and visible-light transmittance is critical but still a challenge for application in high efficiency semitransparent organic solar …
Abstract Small grain size and near-horizontal grain boundaries are known to be detrimental to the carrier collection efficiency and device performance of pure-sulfide Cu2ZnSnS4 (CZTS) solar cells. ... 1 Introduction Pure …
CsPbI 3 perovskite quantum dot solar cells: opportunities, progress and challenges J. Khan, I. Ullah and J. Yuan, Mater. Adv., 2022, 3, 1931 DOI: 10.1039/D1MA01075A This article is licensed under a Creative Commons Attribution.
The "new three" has been a buzzword among Chinese officials and state media recently, as they highlight the strong performance of solar cells, lithium-ion batteries and electric vehicles (EVs) in driving China''s exports this year. China accounts for more than 80 per cent of the global solar cell exports, more than 50 per cent of lithium-ion batteries …