Multifunctional Aminoglycoside Antibiotics Modified SnO2 Enabling High Efficiency and Mechanical Stability Perovskite Solar Cells DOI
Tong Yan, Chenxi Zhang, Shiqi Li

и другие.

Advanced Functional Materials, Год журнала: 2023, Номер 33(28)

Опубликована: Май 25, 2023

Abstract SnO 2 as an electron transport layer (ETL) has been widely used in regular planar perovskite solar cells (PSCs) owing to its high optical transmittance, less photocatalytic activity, and low‐temperature processing. However, ‐based PSCs still face many challenges which greatly impair their efficiency stability of PSCs. Herein, a novel effective multifunctional modification strategy is proposed by incorporating streptomycin sulfate (STRS) molecules with multiple functional groups into ETL. STRS can significantly suppress nanoparticle agglomeration, improve the electronic property , well reduce nonradiative recombination. At same time, interfacial residual tensile stress released energy level alignment becomes more matched. As result, STRS‐modified achieve higher 22.89% compared 20.61% control device exhibit hysteresis‐free feature. The humidity thermal based on STRS‐SnO are improved. Furthermore, flexible devices increased from 19.74% 20.79%, maintain >80% initial PCE after 4500 bending cycles bend radius 5 mm. This study provides low‐cost, facile, efficient for achieving

Язык: Английский

Record‐Efficiency Flexible Perovskite Solar Cells Enabled by Multifunctional Organic Ions Interface Passivation DOI
Lu Yang, Jiangshan Feng, Zhike Liu

и другие.

Advanced Materials, Год журнала: 2022, Номер 34(24)

Опубликована: Апрель 18, 2022

Flexible perovskite solar cells (f-PSCs) have attracted great attention because of their unique advantages in lightweight and portable electronics applications. However, efficiencies are far inferior to those rigid counterparts. Herein, a novel histamine diiodate (HADI) is designed based on theoretical study modify the SnO2 /perovskite interface. Systematic experimental results reveal that HADI serves effectively as multifunctional agent mainly three aspects: 1) surface modification realign conduction band upward improve interfacial charge extraction; 2) passivating buried surface, 3) bridging between layers for effective transfer. Consequently, MA-free PSCs HADI-SnO2 electron transport layer (ETL) display not only high champion power conversion efficiency (PCE) 24.79% open-circuit voltage (VOC ) 1.20 V but also outstanding stability demonstrated by preserving 91% initial after being exposed ambient atmosphere 1200 h without any encapsulation. Furthermore, solution-processed ETL formed at low temperature (100 °C) utilized f-PSCs achieve PCE 22.44%, highest reported date.

Язык: Английский

Процитировано

326

Rubidium Fluoride Modified SnO2 for Planar n‐i‐p Perovskite Solar Cells DOI
Jing Zhuang, Peng Mao, Yigang Luan

и другие.

Advanced Functional Materials, Год журнала: 2021, Номер 31(17)

Опубликована: Фев. 17, 2021

Abstract Regulating the electron transport layer (ETL) has been an effective way to promote power conversion efficiency (PCE) of perovskite solar cells (PSCs) as well suppress their hysteresis. Herein, SnO 2 ETL using a cost‐effective modification material rubidium fluoride (RbF) is modified in two methods: 1) adding RbF into colloidal dispersion, F and Sn have strong interaction, confirmed via X‐ray photoelectron spectra density functional theory results, contributing improved mobility ; 2) depositing at /perovskite interface, Rb + cations actively escape interstitial sites lattice inhibit ions migration reduce non‐radiative recombination, which dedicates open‐circuit voltage ( V oc ) for PSCs with suppressed In addition, double‐sided passivated PSCs, on surface, p‐methoxyphenethylammonium iodide produces outstanding PCE 23.38% 1.213 V, corresponding extremely small deficit 0.347 V.

Язык: Английский

Процитировано

234

Interfacial Defect Passivation and Stress Release via Multi-Active-Site Ligand Anchoring Enables Efficient and Stable Methylammonium-Free Perovskite Solar Cells DOI

Baibai Liu,

Hua̅n Bì, Dongmei He

и другие.

ACS Energy Letters, Год журнала: 2021, Номер 6(7), С. 2526 - 2538

Опубликована: Июнь 18, 2021

Interfacial trap-assisted non-radiative recombination and residual stress impede the further increase of power conversion efficiency (PCE) stability methylammonium-free (MA-free) perovskite solar cells (PSCs). Here, we report an interfacial defect passivation release strategy through employing multi-active-site Lewis base ligand (i.e., (5-mercapto-1,3,4-thiadiazol-2-ylthio)acetic acid (MTDAA)) to modify surface grain boundaries (GBs) MA-free films. Both experimental theoretical results confirm strong chemical interactions between multiple active sites in MTDAA molecule undercoordinated Pb2+ at or GBs It is demonstrated theoretically that adsorption more favorable thermodynamically as compared single-active-site adsorption, regardless PbI2 termination formamidinium iodide (FAI) types. modification much reduced density, increased carrier lifetime, almost thoroughly released stress. Upon passivation, PCE boosted from 20.26% 21.92%. The unencapsulated device modified by maintains 99% its initial after aging under relative humidity range 10–20% for 1776 h, 91% 60 °C 1032 h.

Язык: Английский

Процитировано

226

Chlorobenzenesulfonic Potassium Salts as the Efficient Multifunctional Passivator for the Buried Interface in Regular Perovskite Solar Cells DOI
Dong Yao, Wenjian Shen, Wei Dong

и другие.

Advanced Energy Materials, Год журнала: 2022, Номер 12(20)

Опубликована: Март 28, 2022

Abstract The interfacial properties for the buried junctions of perovskite solar cells (PSCs) play a crucial role further enhancement power conversion efficiency (PCE) and stability devices. Delicate manipulation interface such as defect density, energy alignment, film quality, etc., guarantees efficient extraction transport photogenerated carriers. Herein, chlorobenzenesulfonic potassium salts are presented novel multifunctional agent to modify tin oxide (SnO 2 )/perovskite regular PSCs. increasing number carbon‐chlorine bonds (CCl) in 2,4,5‐trichlorobenzenesulfonic (3Cl‐BSAK) exhibit interaction with uncoordinated Sn, effectively filling oxygen vacancies SnO surface. Importantly, synergistic effects functional group‐rich organic anions ion achieved reduced carrier recombination, hysteresis. A champion PCE 24.27% open‐circuit voltage ( V OC ) up 1.191 modified devices obtained. unencapsulated maintain 80% their initial after aging at 80 °C 800 h atmosphere 95% 100 d. With 3Cl‐BSAK decoration, high semitransparent PSC 12.83% an average visible light transmittance (AVT) over 27% is also

Язык: Английский

Процитировано

222

Interfacial defect passivation and stress release by multifunctional KPF6 modification for planar perovskite solar cells with enhanced efficiency and stability DOI
Hua̅n Bì,

Baibai Liu,

Dongmei He

и другие.

Chemical Engineering Journal, Год журнала: 2021, Номер 418, С. 129375 - 129375

Опубликована: Март 18, 2021

Язык: Английский

Процитировано

209

Multifunctional organic ammonium salt-modified SnO2nanoparticles toward efficient and stable planar perovskite solar cells DOI
Hua̅n Bì, Xin Zuo,

Baibai Liu

и другие.

Journal of Materials Chemistry A, Год журнала: 2021, Номер 9(7), С. 3940 - 3951

Опубликована: Янв. 1, 2021

A novel and effective multifunctional modification strategy through the incorporation of Girard's Reagent T molecules to modify SnO2nanoparticles, which simultaneously enhances efficiency stability is reported.

Язык: Английский

Процитировано

196

Bifunctional hole-shuttle molecule for improved interfacial energy level alignment and defect passivation in perovskite solar cells DOI Creative Commons
Shuai You, Felix T. Eickemeyer, Jing Gao

и другие.

Nature Energy, Год журнала: 2023, Номер 8(5), С. 515 - 525

Опубликована: Апрель 17, 2023

Abstract Perovskite solar cells have reached a power conversion efficiency over 25%, and the engineering of interface between perovskite hole transport layer (HTL) has been crucial to achieve high performance. Here we design bifunctional molecule CBz-PAI with carbazole-triphenylamine phenylammonium iodide units passivate defects at perovskite/HTL interface. Owing favourable energy level alignment perovskite, acts as shuttle HTL. This minimizes difference quasi-Fermi splitting or ‘internal’ V oc , external device thus reducing voltage losses. As result, incorporating reach stabilized 24.7% maintain 92.3% initial after 1,000 h under damp heat test (85 °C 85% relative humidity) 94.6% 1,100 maximum point-tracking conditions.

Язык: Английский

Процитировано

182

Buried Interface Modification in Perovskite Solar Cells: A Materials Perspective DOI
Zhiwen Gao, Yong Wang, Wallace C. H. Choy

и другие.

Advanced Energy Materials, Год журнала: 2022, Номер 12(20)

Опубликована: Апрель 10, 2022

Abstract Organic–inorganic hybrid perovskite solar cells (PSCs) are promising third‐generation cells. They exhibit high power conversion efficiency (PCE) and, in theory, can be manufactured with less energy than several more established photovoltaic technologies, particularly solution‐processed PSCs. Various materials have been widely utilized to modify the buried bottom interface improve performance and long‐term stability of Here, latest progress modifying enhance PSCs is examined from a standpoint, which classified into inorganic salts, organic molecular polymer, carbon materials, perovskite‐related 2D materials. This material perspective useful determining tactics for achieving theoretical PCE value It also serves as solid reference adjustment other layered structure heterojunction devices.

Язык: Английский

Процитировано

178

Radical polymeric p-doping and grain modulation for stable, efficient perovskite solar modules DOI
Shuai You, Haipeng Zeng, Yuhang Liu

и другие.

Science, Год журнала: 2023, Номер 379(6629), С. 288 - 294

Опубликована: Янв. 19, 2023

High-quality perovskite light harvesters and robust organic hole extraction layers are essential for achieving high-performing solar cells (PSCs). We introduce a phosphonic acid-functionalized fullerene derivative in mixed-cation perovskites as grain boundary modulator to consolidate the crystal structure, which enhances tolerance of film against illumination, heat, moisture. also developed redox-active radical polymer, poly(oxoammonium salt), that can effectively p-dope hole-transporting material by injection mitigates lithium ion diffusion. Power conversion efficiencies 23.5% 1-square-centimeter mixed-cation-anion PSCs 21.4% 17.1-square-centimeter minimodules were achieved. The retained 95.5% their initial after 3265 hours at maximum power point tracking under continuous 1-sun illumination 70° ± 5°C.

Язык: Английский

Процитировано

173

Cobalt Chloride Hexahydrate Assisted in Reducing Energy Loss in Perovskite Solar Cells with Record Open-Circuit Voltage of 1.20 V DOI
Pengyang Wang, Bingbing Chen, Renjie Li

и другие.

ACS Energy Letters, Год журнала: 2021, Номер 6(6), С. 2121 - 2128

Опубликована: Май 13, 2021

SnO2 is widely used and one of the most efficient electron transport layers in perovskite solar cells (PSCs). However, films often contain detrimental defects may also have mismatches energy level alignment with films, thus limiting open-circuit voltage (VOC). Managing band structure are critical to reduce loss PSCs. Herein, cobalt chloride hexahydrate (CoCl2·6H2O) introduced into a film, which shows favorable better charge extraction. Correspondingly, an enhanced VOC up 1.20 V was achieved along efficiency 23.82%, record at optical gap 1.54 eV planar Moreover, target devices show stability, retains 83.5% their initial efficiencies after 200 h under continuous irradiation. The doping method provides effective strategy for reducing further enhance

Язык: Английский

Процитировано

151