24.11% High Performance Perovskite Solar Cells by Dual Interfacial Carrier Mobility Enhancement and Charge‐Carrier Transport Balance DOI
Yuhong Zhang, Lin Xu, Jiao Sun

et al.

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 12(37)

Published: Aug. 16, 2022

Abstract The open‐circuit voltage ( V OC ) and fill factor (FF) of perovskite solar cells (PSCs) are detrimentally weakened by carrier loss at the perovskite/charge transport layers (CTLs) interfaces. Herein, a dual interfacial modification strategy via placing Nb 2 CT x nanosheets with tailored optoelectrical properties induced manipulating surface terminal groups both perovskite/CTLs interfaces is employed. Such tactics not only concurrently implement mobility enhancement CTLs interface energy‐levels offsets reduction. More importantly, electrical simulation indicates that O located grain boundaries layer, can more efficiently conduct hole current to therefore achieving charge‐carrier balance in device. As result, synergy effect effectively elevates FF cells, reaching maximum values 1.253 81.07%, respectively, finally delivering progressively increased device power conversion efficiency (PCE) 24.11% negligible hysteresis. This PCE value ranks highest date for PSCs employing MXenes materials. Moreover, optimized devices show better thermal light stability than control devices. work demonstrates simple effective method utilizing photovoltaic field, involving photodetectors, light‐emitting diodes, sensors, etc.

Language: Английский

Engineering the buried interface in perovskite solar cells via lattice-matched electron transport layer DOI
Chao Luo, Guanhaojie Zheng, Feng Gao

et al.

Nature Photonics, Journal Year: 2023, Volume and Issue: 17(10), P. 856 - 864

Published: July 6, 2023

Language: Английский

Citations

239
Revealing Steric‐Hindrance‐Dependent Buried Interface Defect Passivation Mechanism in Efficient and Stable Perovskite Solar Cells with Mitigated Tensile Stress DOI
Qian Zhou, Dongmei He, Qixin Zhuang

et al.

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(36)

Published: June 30, 2022

Abstract Interface engineering is one feasible and effective approach to minimize the interfacial nonradiative recombination stemming from defects, residual stress, energy level mismatch. Herein, a novel steric‐hindrance‐dependent buried interface defect passivation stress release strategy reported, which implemented by adopting series of adamantane derivative molecules functionalized with CO (i.e., 2‐adamantanone (AD), 1‐adamantane carboxylic acid (ADCA), 1‐adamantaneacetic (ADAA)) modify SnO 2 /perovskite interface. All modifiers play role in passivating mitigating strain, enhancing device performance. The steric hindrance chemical interaction between these perovskites as well determined distance bulky ring, gradually decreases AD, ADCA, ADAA. experimental theoretical evidences together confirmed effect strength. strength, effect, thus performance are negatively correlated hindrance. Consequently, ADAA‐modified achieves seductive efficiency up 23.18%. unencapsulated devices ADAA maintain 81% its initial after aging at 60 °C for 1000 h.

Language: Английский

Citations

147
Tailoring multifunctional anion modifiers to modulate interfacial chemical interactions for efficient and stable perovskite solar cells DOI
Qixin Zhuang, Cong Zhang, Cheng Gong

et al.

Nano Energy, Journal Year: 2022, Volume and Issue: 102, P. 107747 - 107747

Published: Aug. 24, 2022

Language: Английский

Citations

119
Stabilizing Buried Interface via Synergistic Effect of Fluorine and Sulfonyl Functional Groups Toward Efficient and Stable Perovskite Solar Cells DOI Creative Commons
Cheng Gong, Cong Zhang, Qixin Zhuang

et al.

Nano-Micro Letters, Journal Year: 2022, Volume and Issue: 15(1)

Published: Dec. 29, 2022

The interfacial defects and energy barrier are main reasons for nonradiative recombination. In addition, poor perovskite crystallization incomplete conversion of PbI2 to restrict further enhancement the photovoltaic performance devices using sequential deposition. Herein, a buried interface stabilization strategy that relies on synergy fluorine (F) sulfonyl (S=O) functional groups is proposed. A series potassium salts containing halide non-halogen anions employed modify SnO2/perovskite interface. Multiple chemical bonds including hydrogen bond, coordination bond ionic realized, which strengthens contact defect passivation effect. interaction between modification molecules along with SnO2 heightens incessantly as number S=O F augments. strength modifiers well gradually increases increase in F. effect positively correlated strength. kinetics regulated through compromise wettability substrates. Compared Cl-, all perform better optimization, band regulation passivation. device bis (fluorosulfonyl) imide achieves tempting efficiency 24.17%.

Language: Английский

Citations

114
Multifunctional Small Molecule as Buried Interface Passivator for Efficient Planar Perovskite Solar Cells DOI

Meizi Wu,

Yuwei Duan, Lu Yang

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(22)

Published: March 2, 2023

Abstract The improvement of power conversion efficiency (PCE) and stability the perovskite solar cell (PSC) is hindered by carrier recombination originating from defects at buried interface PSC. It crucial to suppress nonradiative facilitate transfer in PSC via engineering. Herein, P‐biguanylbenzoic acid hydrochloride (PBGH) developed modify tin oxide (SnO 2 )/perovskite interface. effects PBGH on transportation, growth, defect passivation, performance are systematically investigated. On one hand, can effectively passivate trap states Sn dangling bonds O vacancies SnO surface Lewis acid/base coordination, which conducive improving conductivity film accelerating electron extraction. other modification assists formation high‐quality with low density due its strong interaction PbI . Consequently, PBGH‐modified exhibits a champion 24.79%, highest PCEs among all FACsPbI 3 ‐based PSCs reported date. In addition, stabilities films devices under high temperature/humidity light illumination conditions also studied.

Language: Английский

Citations

91
Optimizing the Buried Interface in Flexible Perovskite Solar Cells to Achieve Over 24% Efficiency and Long‐Term Stability DOI

Ruoyao Xu,

Fang Pan,

Jinyu Chen

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(7)

Published: Oct. 7, 2023

The buried interface of the perovskite layer has a profound influence on its film morphology, defect formation, and aging resistance from outset, therefore, significantly affects quality device performance derived solar cells. Especially for FAPbI

Language: Английский

Citations

83
Pushing the Limit of Open‐Circuit Voltage Deficit via Modifying Buried Interface in CsPbI3 Perovskite Solar Cells DOI

Chenzhe Xu,

Suicai Zhang,

Wenqiang Fan

et al.

Advanced Materials, Journal Year: 2022, Volume and Issue: 35(7)

Published: Nov. 19, 2022

Although CsPbI3 perovskites have shown tremendous potential in the photovoltaic field owing to their excellent thermal stability, device performance is seriously restricted by severe photovoltage loss. The buried titanium oxide/perovskite interface plays a critical role interfacial charge transport and perovskite crystallization, which closely related open-circuit voltage deficit stemming from nonradiative recombination. Herein, target molecules named 3-sulphonatopropyl acrylate potassium salts are deliberately employed with special functional groups for modifying interface, giving rise favorable functions terms of passivating defects, optimizing energetic alignment, facilitating crystallization. Experimental characterizations theoretical calculations reveal that modification inhibits electron transfer barrier simultaneously improves crystal quality, thereby reducing trap-assisted recombination Consequently, omnibearing regarding endows devices an impressive efficiency 20.98%, achieving record-low VOC 0.451 V. as-proposed strategy renders universal prescription push limit deficit, showing promising future developing high-performance all-inorganic photovoltaics.

Language: Английский

Citations

81
Over 24% Efficient Poly(vinylidene fluoride) (PVDF)‐Coordinated Perovskite Solar Cells with a Photovoltage up to 1.22 V DOI

Riming Sun,

Qiushuang Tian,

Mubai Li

et al.

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 33(6)

Published: Dec. 11, 2022

Abstract Recently, organic–inorganic metal halide perovskite solar cells (PSCs) have achieved rapid improvement, however, the efficiencies are still behind Shockley–Queisser theory mainly due to their high energy loss ( E LOSS ) in open‐circuit voltage V OC ). Due polycrystalline nature of solution‐prepared films, defects at grain boundaries as non‐radiative recombination centers greatly affect and limit device efficiency. Herein, poly(vinylidene fluoride) (PVDF) is introduced polymer‐templates film, where fluorine atoms PVDF network can form strong hydrogen‐bonds with organic cations coordinate bonds Pb 2+ . The interaction between perovksite enables slow crystal growth efficient defect passivation, which effectively reduce non‐radiation minimize PVDF‐based PSCs achieve a champion efficiency 24.21% excellent 1.22 V, one highest values reported for FAMAPb(I/Br) 3 ‐based PSCs. Furthermore, hydrophobic endow humidity stability, unencapsulated cell maintain initial >90% 2500 h under air ambient ≈50% humid consistently 1.20 V.

Language: Английский

Citations

81
Surface Energy Engineering of Buried Interface for Highly Stable Perovskite Solar Cells with Efficiency Over 25% DOI Open Access
Hang Su, Zhuo Xu,

Xilai He

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(2)

Published: Oct. 21, 2023

The abundant oxygen-related defects (e.g., O vacancies, O-H) in the TiO

Language: Английский

Citations

59
Low‐Cost Hydroxyacid Potassium Synergists as an Efficient In Situ Defect Passivator for High Performance Tin‐Oxide‐Based Perovskite Solar Cells DOI

Wei Dong,

Chenpu Zhu,

Cong Bai

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(25)

Published: April 17, 2023

Perovskite solar cells (PSCs) based on SnO2 electron transport layers have attracted extensive research due to their compelling photovoltaic performance. Herein, we presented an in situ passivation of with low-cost hydroxyacid potassium synergist during deposition optimize the interface carrier extraction and for high power conversion efficiency (PCE) stabilities PSCs. The orbital overlap carboxyl oxygen Sn atom alongwith homogenous nano-particle effectively suppresses interfacial defects releases internal residual strains perovskite. Accordingly, a PCE 24.91 % fill factor (FF) up 0.852 is obtained passivated devices, which one highest values -based Moreover, unencapsulated device maintained 80 its initial at °C over 600 h, 100 ambient conditions 1300 98 after week maximum point tracking (MPPT) under continuous AM1.5G illumination.

Language: Английский

Citations

56