Ultraviolet-Controlled Radical Dopants: Suppressing Unpredictable Oxidation and Lithium Migration in Perovskite Solar Cells.

Perovskite solar cells (PSCs) have achieved parity in efficiency with silicon-based solar cells. This dependency introduces stability challenges and complicates device fabrication due to the traditional air-oxidation doping process, which is time-consuming, unpredictable, and requires continuous monitoring of device variability. Here, we propose two triphenyl sulfonium (TPS) salts as UV-light-triggered radical-generating dopants for 2,2',7,7'-tetrakis [N,N-di(4-methoxyphenyl) amino]-9,9'-spirobifluorene(spiro-OMeTAD).

Radical Molecular Network-Buffer Minimizes Photovoltage Loss in FAPbI₃ Perovskite Solar Cells.

Formamidinium lead iodide (FAPbI₃) perovskite solar cells (PSCs) hold immense potential for high-efficiency photovoltaics, but maximizing their open-circuit voltage (V) remains challenging. Targeting the inherently stable {111}-dominant facets is a promising approach for enhancing stability, but their formation typically suffers from high defect densities and disordered growth. This study introduces a novel approach using an in situ polymerizable radical molecule, ATEMPO, as an additive to address these issues.

Interface Dipole Management of D-A-Type Molecules for Efficient Perovskite Solar Cells.

Interfacial engineering of perovskite films has been the main strategies in improving the efficiency and stability of perovskite solar cells (PSCs). In this study, three new donor-acceptor (D-A)-type interfacial dipole (DAID) molecules with hole-transporting and different anchoring units are designed and employed in PSCs. The formation of interface dipoles by the DAID molecules on the perovskite film can efficiently modulate the energy level alignment, improve charge extraction, and reduce non-radiative recombination.

Comprehensive investigation of differentially expressed ncRNAs, mRNAs, and their ceRNA networks in the regulation of shell color formation in clam, Cyclina sinensis.

Noncoding RNAs (ncRNAs) have gained significant attention in recent years due to their crucial roles in various biological processes. However, our understanding of the expression and functions of ncRNAs in Cyclina sinensis, an economically important marine bivalve, remains limited. This study aimed to address this knowledge gap by systematically identifying ncRNAs in the mantles of C.

Self-Polymerized Spiro-Type Interfacial Molecule toward Efficient and Stable Perovskite Solar Cells.

In the pursuit of highly efficient perovskite solar cells, spiro-OMeTAD has demonstrated recorded power conversion efficiencies (PCEs), however, the stability issue remains one of the bottlenecks constraining its commercial development. In this study, we successfully synthesize a novel self-polymerized spiro-type interfacial molecule, termed v-spiro. The linearly arranged molecule exhibits stronger intermolecular interactions and higher intrinsic hole mobility compared to spiro-OMeTAD.

HO/Glucose Sensor Based on a Pyrroloquinoline Skeleton-Containing Molecule Modified Gold Cavity Array Electrode.

HO-related metabolites are essential indicators in clinical diagnosis because the accumulation of such reactive oxygen species could cause the risk of cardiovascular disease. Herein, we reported an electrochemical sensor to determine HO and glucose. The pyrroloquinoline skeleton containing molecules (PQT) were used as the electrocatalyst and the gold cavity array (GCA) electrodes as the supporting electrode.

[Transfer energy disposal in collisions of NaK (6(1)sigma+) with H2].

The radiative lifetimes and rate coefficients for deactivation of high lying 6(1)sigma+ state of NaK by collisions with H2 were studied. An OPO laser was set to a particular 2(1)sigma+ <-- 1(1)sigma+ transition. Another single mode Ti sapphire laser was then used to excite molecule from 2(1)sigma+ level to the 6(1)sigma+ state.