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Isomer‐Pure Bis‐PCBM‐Assisted Crystal Engineering of Perovskite Solar Cells Showing Excellent Efficiency and Stability
A fullerene derivative is purified from an as-produced bis-phenyl-C61 -butyric acid methyl ester mixture and is employed as a templating agent for solution processing of metal halide perovskite films via an antisolvent method, achieving better stability, efficiency, and reproducibility when compared with analogous cells containing PCBM.
Enhanced control of self-doping in halide perovskites for improved thermoelectric performance
The thermoelectric properties of all-inorganic tin based perovskites with enhanced air stability are reported and a high figure-of-merit ZT value of 0.14 is achieved via careful composition engineering.
A novel one-step synthesized and dopant-free hole transport material for efficient and stable perovskite solar cells
A hole transport material ST1 was synthesized by a one-step Heck reaction. Compared to Spiro-OMeTAD, perovskite solar cells with ST1 exhibit a remarkable overall power conversion efficiency of 15.4%
Extending the Photovoltaic Response of Perovskite Solar Cells into the Near‐Infrared with a Narrow‐Bandgap Organic Semiconductor
The results demonstrate the potential generalizability of directly incorporating a multifunctional organic semiconductor that both extends light absorption and passivates surface traps in perovskite active layers to yield highly efficient and stable NIR-harvesting PSCs.
Accessing Highly Oriented Two-Dimensional Perovskite Films via Solvent-Vapor Annealing for Efficient and Stable Solar Cells.
SVA is reported on as a general postdeposition strategy to induce strong vertical orientation across broad classes of 2D perovskite films and facilitates their surface-induced reorientation and concomitant grain growth, which enhance out-of-plane charge transport.
Solution-processed thermally stable amorphous films of small molecular hole injection/transport bi-functional materials and their application in high efficiency OLEDs
A series of novel triphenylamine-based small molecular hole transport materials (HTMs) are reported for solution processed organic light-emitting devices (OLEDs). The character of this series of