<b><scp>MOFs</scp> in Emerging Solar Cells</b>

Dou, Jiantai; Chen, Qi

doi:10.1002/cjoc.202200651

Cited by 11 publications

(7 citation statements)

References 134 publications

(174 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Photocatalysis has attracted great research interest in recent years because of its great potential to convert solar energy into chemical fuels. [ 1‐2 ] Hydrogen, emerged as an environmental‐ friendly gas fuel, is a good candidate for substituting traditional fossil‐based fuels because of its high energy density. Photocatalytic water splitting with sustainable solar energy is regarded as a promising approach to alleviate the ever‐growing environmental pollution, which is conductive to reducing our dependence on fossil‐based fuels.…”

Section: Background and Originality Contentmentioning

confidence: 99%

Carbazole‐Based Donor‐Acceptor Conjugated Microporous Polymers for Efficient Visible‐Light‐Driven Photocatalytic H₂ Evolution^†

Yang

Cheng

et al. 2023

Chin. J. Chem.

View full text Add to dashboard Cite

Comprehensive SummaryConjugated microporous polymers (CMPs) featuring extended π‐structures, large specific surface area and tailor‐made functionalities are a class of promising organic photocatalysts for hydrogen evolution reaction (HER) from water. However, the photocatalytic activities of most CMPs are severely hindered by slow charge transfer rate and fast charge recombination process. Herein, we develop a strategy for the synthesis of donor‐acceptor CMPs through nickel(0)‐catalyzed Yamamoto cross‐coupling of 3,6‐dibromo‐9‐(4‐bromophenyl)carbazole (CZ) with 5,5'‐dibromo‐2,2'‐bipyridine (DBPy) for efficient HER from water. The PCZN‐4 prepared with a 2 : 3 stoichiometric ratio of CZ to DBPy exhibited the highest photocatalytic hydrogen evolution rate of 7160 μmol·g–1·h–1, which was nearly equal to 179 times and 143 times that of PCZN‐1 (40 μmol·g–1·h–1) and PCZN‐6 (50 μmol·g–1·h–1) obtained by Yamamoto homocoupling of CZ and DBPy, respectively. Compared to the homocoupling counterparts, the enhanced photocatalytic activity of PCZN‐4 results from improved separation efficiency of charge carriers. Interestingly, the photocatalytic H2 evolution performance of PCZN‐4 could be further improved up to 17080 μmol·g–1·h–1 by adjusting pH of the aqueous solution. This work offers a novel approach for improving photocatalytic efficiency by tuning the chemical structures and surrounding microenvironment of the polymer backbone.

show abstract

Section: Background and Originality Contentmentioning

confidence: 99%

Carbazole‐Based Donor‐Acceptor Conjugated Microporous Polymers for Efficient Visible‐Light‐Driven Photocatalytic H₂ Evolution^†

Yang

Cheng

et al. 2023

Chin. J. Chem.

View full text Add to dashboard Cite

show abstract

“…[ 25 ] both work well in preventing external water. Examples using waterproof coatings include adding hydrophobic compounds such as 2,2‐difluoropropanediamide (DFPDA), [ 26 ] 3‐phosphonopropionic acid (H3pp), [ 27 ] and CsCl [ 28 ] into the precursor of perovskite using a more waterproof layer such as phenethylammonium iodide (PEAI), [ 29 ] 4‐ tert ‐butyl‐benzylammonium iodide (tBBAI), [ 30 ] MOFs, [ 31 ] etc., between the perovskite film and the transporter layers. To date, designing ultra‐stable 2D/3D perovskites is also one of the most effective methods to enhance the waterproofing capability of Pero‐SCs.…”

Section: Background and Originality Contentmentioning

confidence: 99%

Highly Stable Perovskite Solar Cells by Reducing Residual Water‐Induced Decomposition of Perovskite

Yang

Chen

et al. 2023

Chin. J. Chem.

View full text Add to dashboard Cite

Comprehensive SummaryResidual water‐induced decomposition is one of the dominant reasons for the decay of power conversion efficiency (PCE) in perovskite solar cells (Pero‐SCs). To solve this problem, we introduce traces amount of sodium hyaluronate (SH) into the perovskite active layer to reduce the remaining water during the preparation of perovskite films. Unlike the traditionally adopted passive protection of perovskite from exterior water by low surface energy coatings, this study provides active control of the interior water by the addition of a water adsorbent into the perovskite films. The encapsulated Pero‐SCs with SH retain approximately 70% of their initial PCE in 4000 h, while those without SH retain 32% of their initial PCE in 1000 h under the dark and ambient atmosphere. The unencapsulated Pero‐SCs with SH stored in N2 atmosphere maintain over 94% of the initial PCE in 3000 h at room temperature away from light and remain over 88% of the initial PCE in 2000 h even the devices are heated to 70 °C. It has been proven that the improved stability is mainly due to the well‐controlled residual water in perovskite films. Concomitantly, the PCE of p‐i‐n solar cells based on (FAPbI3)0.85(MAPbBr3)0.15 is improved from 19.34% to 21.54%.

show abstract

“…By utilizing the coordination of thiol and carboxyl groups with Pb 2+ in the perovskite precursor, we can accelerate the conversion of intermediates into perovskites, enhance the crystallinity of the perovskite, improve interface contact, and reduce N t . Although MOFs have some applications in PSCs, their use in the room-temperature crystallization of the perovskite has not been reported so far. − …”

Section: Introductionmentioning

confidence: 99%

MOF-Assisted Annealing-Free Crystallization Technology of Perovskites toward Efficient and Stable Perovskite Solar Cells

Lou

Wan

Wang

2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Although annealing is a commonly used crystallization method for perovskite films in perovskite solar cells (PSCs), the high thermal energy consumption and limitations on flexible devices hinder their further industrial application. We herein propose an annealing-free crystallization technology for perovskite films, assisted by the Zr−metal−organic framework (MOF) interface between SnO 2 and the perovskite. It is found that the Zr−MOF interface can accelerate the formation of perovskite intermediates and promote their conversion into perovskite crystals even without annealing. The trap density thus decreases by about one fold, accompanied by significant increases in electron and hole mobilities, resulting in enhanced carrier extraction and suppressed charge recombination. Therefore, the Zr−MOF-based PSC attains a power convention efficiency (PCE) of 20.24%, 2.2 times that (9.26%) of the pristine PSC. Furthermore, the Zr−MOF interface layer can significantly improve the air and thermal stabilities of PSCs. The Zr−MOF-based PSC exhibits 93% of its initial PCE versus 52% for the pristine PSC after 1018 h of storage in air. Additionally, after 360 h of continuous heating at 65 °C, the Zr−MOF-based PSC retains 91% of its initial PCE against 44% for the pristine PSC.

show abstract

MOFs in Emerging Solar Cells

Cited by 11 publications

References 134 publications

Carbazole‐Based Donor‐Acceptor Conjugated Microporous Polymers for Efficient Visible‐Light‐Driven Photocatalytic H₂ Evolution^†

Carbazole‐Based Donor‐Acceptor Conjugated Microporous Polymers for Efficient Visible‐Light‐Driven Photocatalytic H₂ Evolution^†

Highly Stable Perovskite Solar Cells by Reducing Residual Water‐Induced Decomposition of Perovskite

MOF-Assisted Annealing-Free Crystallization Technology of Perovskites toward Efficient and Stable Perovskite Solar Cells

Contact Info

Product

Resources

About

MOFs in Emerging Solar Cells

Cited by 11 publications

References 134 publications

Carbazole‐Based Donor‐Acceptor Conjugated Microporous Polymers for Efficient Visible‐Light‐Driven Photocatalytic H2 Evolution†

Carbazole‐Based Donor‐Acceptor Conjugated Microporous Polymers for Efficient Visible‐Light‐Driven Photocatalytic H2 Evolution†

Highly Stable Perovskite Solar Cells by Reducing Residual Water‐Induced Decomposition of Perovskite

MOF-Assisted Annealing-Free Crystallization Technology of Perovskites toward Efficient and Stable Perovskite Solar Cells

Contact Info

Product

Resources

About

Carbazole‐Based Donor‐Acceptor Conjugated Microporous Polymers for Efficient Visible‐Light‐Driven Photocatalytic H₂ Evolution^†

Carbazole‐Based Donor‐Acceptor Conjugated Microporous Polymers for Efficient Visible‐Light‐Driven Photocatalytic H₂ Evolution^†