2021年2月5日，楊陽教授團(tuán)隊聯(lián)合NREL的Matthew C. Beard團(tuán)隊和美國托萊多大學(xué)鄢炎發(fā)團(tuán)隊設(shè)計了一系列具有大π共軛體系的有機(jī)銨鹽，發(fā)現(xiàn)當(dāng)合理調(diào)控芘基共軛銨鹽與B（陽離子）-X（無機(jī)陰離子）框架的作用距離，會對鈣鈦礦的表面前沿軌道產(chǎn)生影響。該種芘基銨鹽可以改變鈣鈦礦的表面價帶邊結(jié)構(gòu)并影響鈣鈦礦的載流子動力學(xué)。其中，引入芘乙胺的鈣鈦礦具有更高的空穴遷移率，能量轉(zhuǎn)換效率以及穩(wěn)定性。該工作為調(diào)控鈣鈦礦的電子結(jié)構(gòu)提供了一個新的自由度。
1. Near-infrared Materials: The Turning Point of Organic Photovoltaics, Adv. Mater. 2021, 2107330. DOI: 10.1002/adma.202107330.2. Yang Yang Lab: Two Decades in the Making, Matter 1, 312–316. DOI: 10.1016/j.matt.2019.07.008.3. Reconfiguring the band-edge states of photovoltaic perovskites by conjugated organic cations, Science 371 (6529), 636-640. DOI: 10.1126/science.abd4860.4. Single-Layered MXene Nanosheets Doping TiO2 for Efficient and Stable Double Perovskite Solar Cells, J. Am. Chem. Soc. 2021, 143 (6) 2593–2600. DOI: 10.1021/jacs.0c12739.5. Stable and Efficient Methylammonium‐, Cesium‐, and Bromide‐Free Perovskite Solar Cells by In‐Situ Interlayer Formation, Adv. Funct. Mater. 2021, 31, 2007520. DOI: 10.1002/adfm.202007520.6. High-Performance Organic Photovoltaics Incorporating an Active Layer with a Few Nanometer-Thick Third-Component Layer on a Binary Blend Layer, Nano Lett. 2021, 21 (5) 2207–2215. DOI: 10.1021/acs.nanolett.0c05045.7. Sequential Deposition of Donor and Acceptor Provides High-Performance Semitransparent Organic Photovoltaics Having a Pseudo p–i–n Active Layer Structure, Adv. Energy Mater. 2021, 11, 2003576. DOI: 10.1002/aenm.202003576.8. Surface Reconstruction of Halide Perovskites During Post-treatment, J. Am. Chem. Soc. 2021, 143 (18) 6781–6786. DOI: 10.1021/jacs.1c00757.
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