Ligand Exchange and Impurity Doping in 2D CdSe Nanoplatelet Thin Films and Their Applications
نویسندگان
چکیده
The effects of halide-ligand exchange and Cu Ag doping are studied on structural, optical, electrical properties four monolayer CdSe nanoplatelet (NPL) NPL thin films. Combinational study shows that NH4Cl-treatment films show tetragonal lattice distortion NPL, side-to-side attachment between NPLs, bathochromic shift in absorption spectra, complete quenching band-edge dopant-induced emissions. First-principle calculations reveal Cl creates states below valence band maximum while dopants create acceptor-like states, explaining the change their optical property. Field-effect transistors fabricated to investigate effect reduced interplatelet distance films, demonstrating mitigate n-type character Temperature-dependent characterization is conducted further understand charge transport behavior depending existence dopants. This work provides scientific information influence surface chemistry impurity quantum confined semiconductors new directions for design high-performance nanomaterial-based electronic optoelectronic devices.
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چکیده ندارد.
15 صفحه اولElectronic impurity doping in CdSe nanocrystals.
We dope CdSe nanocrystals with Ag impurities and investigate their optical and electrical properties. Doping leads not only to dramatic changes but surprising complexity. The addition of just a few Ag atoms per nanocrystal causes a large enhancement in the fluorescence, reaching efficiencies comparable to core-shell nanocrystals. While Ag was expected to be a substitutional acceptor, nonmonoton...
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متن کاملin translation: translators on their work and what it means
کتاب در باب ترجمه، اثر استر آلن و سوزان برنوفسکی منتشر شده در ماه می 2013 توسط نشریه کلمبیا است. نویسندگان در این کتاب به بررسی 18 مترجم با در نظر گرفتن نقش آثاری که این مترجمان ترجمه کرده اند میپردازند. کتاب به دو بخش تقسیم میشود: " مترجم در جهان" و " کار مترجم" این دو بخش مقالات همیشگی ترجمه و موقعیت خاص ادبیات بیگانه در جهان وسیع امروزی را مورد خطاب قرار میدهد. در این کتاب مقالات متعددی از ن...
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ژورنال
عنوان ژورنال: Advanced electronic materials
سال: 2021
ISSN: ['2199-160X']
DOI: https://doi.org/10.1002/aelm.202100739