Fu, Yu published the artcileMandelic Acid as an Interfacial Modifier for High Performance NiOx-based Inverted Perovskite Solar Cells, HPLC of Formula: 90-64-2, the publication is ChemNanoMat (2022), 8(7), e202200091, database is CAplus.
Nickel oxide (NiOx) inverted perovskite solar cells have been witnessed as promising solar cells because of the low cast, easy fabrication and negligible hysteresis. However, the inferior interface feature of the link NiOx and perovskite layer often causes poor device property and repeatability. Here, Mandelic acid (MAD) is introduced to form a modified layer, which could improve the poor interface properties between perovskite layer and NiOx layer. The contact angel images revels MAD could increase the hydrophobicity and facilitate the growth of perovskite crystal. The X-ray diffraction pattern and Fourier transform IR spectroscopy have confirmed that the MAD small mol. could interact with residual PbI2 crystal, leading to better interface contact and high crystallinity. This is further demonstrated by the SEM test of NiOx/MAD/MAPbI3 film that average grain size is increased from 201.85 nm to 315.17 nm. The space-charge limited current measurement proves the introduction of MAD mol. that result in the decreased trap state d. from 3.58×1015 cm-3 to 2.721015 cm-3. As a consequence, The power conversion efficiency is significantly improved from 14.9% to 18.42% of MAPbI3-based devices that retained nearly 80% initial PCE after 50 days in N2 without encapsulation.
ChemNanoMat published new progress about 90-64-2. 90-64-2 belongs to alcohols-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Alcohol,Natural product, name is 2-Hydroxy-2-phenylacetic acid, and the molecular formula is C8H8O3, HPLC of Formula: 90-64-2.
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