Wearable Electronics: Wearable Large‐Scale Perovskite Solar‐Power Source via Nanocellular Scaffold (Adv. Mater. 42/2017)

Abstract

In article number https://doi.org/10.1002/adma.201703236, Fengyu Li, Yanlin Song, and co‐workers report hysteresis‐free, flexible, and large‐scale perovskite solar cells with recorded photoelectric conversion efficiencies of 12.3% for a 1 cm2 single chip and 8.4% for a 24 cm2 solar module. This is the first time that a wearable solar power source that can supply power for multifunction electronic devices with a variety of body movements is fabricated practically.

A Butterfly‐Inspired Hierarchical Light‐Trapping Structure towards a High‐Performance Polarization‐Sensitive Perovskite Photodetector

“…As shown in Figure a, all the perovskite films present diffraction peaks of (110), (112), (220), (310), and (224) planes without any PbI 2 residues, indicating the pure tetragonal phase of CH 3 NH 3 PbI 3 . The shaper and stronger peaks in G‐PC‐PVK film confirm the ordered porous scaffold and nanoimprinting process promote the crystallization of perovskite, which is consistent with the result of SEM image shown in Figure 2 b. Steady‐state PL spectra (Figure b) shows the same emission peak at ca.…”

Stimulus-responsive nonclose-packed photonic crystals: fabrications and applications

“…The PBG position of PCs follows Bragg's law and depends on the effective refractive index, lattice distance, and orientations. [5][6][7] These unique optical properties make PCs show potential applications in color displays, [8][9][10][11][12][13][14] printings, [15][16][17][18][19][20][21][22][23][24] sensors, [25][26][27][28][29][30][31][32][33][34][35][36][37] solar cells, 38,39 pigments, [40][41][42] anticounterfeiting, [43][44][45][46][47][48][49][50][51][52][53][54]…”

A Polymer Strategy toward High‐Performance Multifunctional Perovskite Optoelectronics: From Polymer Matrix to Device Applications

“…For polycrystalline perovskites, the grain boundaries are stress concentration sites, which are prone to crack generation and propagation. [ 177–179 ] The polymers in the polymer–perovskite composite can absorb crack initiation and propagation energy, and strengthen the toughness of materials and interface. [ 94,180,181 ] Li et al.…”