Transparent Cu2−xSe@N-doped carbon nanosheets as a cathode for Co(III/II)-mediated bifacial dye-sensitized solar cells

Fe3O4@N-doped carbon derived from dye wastewater flocculates as a heterogeneous catalyst for degradation of methylene blue

“…The peaks at 711, 532, 284, and 400 eV ascribed to Fe2p, O1s, C1s, and N1s, respectively, confirm the composition of the catalyst. 37,[45][46][47] For Fe 3 O 4 @NC, the Fe 2p XPS peak could be deconvoluted into two broad peaks centered at 710.6 and 724.4 eV, corresponding to Fe 2p 3/2 and Fe 2p 1/2 , respectively, which is consistent with the crystal structure of Fe 3 O 4 . 22 The Fe 2p 3/2 peak of could be further resolved into two different peaks at 710.4 and 712.7 eV, which were attributed to Fe 3+ and Fe 2+ ions, respectively.…”

Emerging applications of metal-organic frameworks and derivatives in solar cells: Recent advances and challenges

“…Ni-Co-MOF [194], cobalt− metalloporphyin MOF (PIZA-1) [195], and Cu-TCPP MOF [196], have been studied as precursors to explore their derivatives as counter electrodes in DSSCs. Their corresponding derivatives including CoS x , CoSe 2 , bimodal mesoporous carbon with embedded Ni nanoparticles (BMCNi), ZnSe/N-doped carbon, NiCo 0.2 @C, CoS 1.097 @N-doped carbon, and Cu 2− x Se@N-doped carbon, respectively, were applied as CEs for DSSCs, with all exhibiting electrocatalytic performance comparable to that of Pt-based DSSCs.…”

“…Three types of MOFs including ZIF-8 [204][205][206][207], a 2D conjugated MOF (ZrL3) [208], and Eu-MOF [209] were studied, while only one MOF derivative NiO@C was applied as an interfacial layer for PSC [210]. [196] These MOFs and derivatives are anticipated to enhance the perovskite crystallinity and grain size, thus further improving the photovoltaic performance of PSCs.…”

Review on Low‐Cost Counter Electrode Materials for Dye‐Sensitized Solar Cells: Effective Strategy to Improve Photovoltaic Performance

“…[25,181,182,183] Introducing carbonaceous materials to construct selenides/carbon composites is an effective strategy to achieve higher photovoltaic performance than that of the solely materials. [183,184] It must be pointed out that the selenides/carbon composites also exhibited an great potential as CE materials for Co(III/II)-mediated DSSCs. [179] In situ growth method is beneficial to obtain an ideal FF owing to the formation of a perfect ohmic contact between substrate and catalysts layers, which is helpful to achieve superior catalytic activity and better PCE.…”