Energy bands

The first principle calculation was employed to investigate the formation energies and structural, electronic, and magnetic properties of intrinsic and Ni-doped sodium bismuth titanate Bi0.5Na0.5TiO3(BNT). The obtained formation energies indicate that Ni atoms prefer to dope into Bi-sites in the lattice of BNT while the calculated band structure shows that the doping leads to the emergence of new midgap energy states in the bandgaps, reducing the bandgap value of doped materials.

10p viaburame 14-03-2025 3 1   Download

Zinc oxide is highly sought after for several applications in biology, optoelectronics, electronics, and sensing. Zinc oxide nanorods exhibit a high exciton binding energy and a wide direct band gap, making them an attractive material for ultraviolet optoelectronic devices in the compound semiconductor field.

6p viling 11-10-2024 4 1   Download

This paper presents a comprehensive investigation into the optimization of exciplex emission in organic light-emitting diodes (OLEDs). Through a systematic exploration of various combinations of hole-transporting materials (HTMs) and electron-transporting materials (ETMs), we elucidate critical factors influencing exciplex formation and its impact on OLED performance.

5p viyamanaka 06-02-2025 3 1   Download

Bài giảng "Vật liệu học - Chương 6: Electrical properties" cung cấp cho người học các kiến thức về Ohm’s law, energy levels of an isolated atom, conduction & electron transport, charge carriers in insulators and semiconductors, energy bands, the mass action law,... Mời các bạn cùng tham khảo.

84p koxih_kothogmih3 23-08-2020 65 5   Download

The moderately thermophilic bacteriumAcidithiobacillus caldus is found in bacterial populations in many bioleaching operations throughout the world. This bac-terium oxidizes elemental sulfur and other reduced inor-ganic sulfur compounds as the sole source of energy. The purpose of this study was to purify and characterize the tetrathionate hydrolase of A. caldus. The enzyme was purified 16.7-fold by one step chromatography using a SP Sepharose column. The purified enzyme resolved into a single band in 10% polyacrylamide gel, both under denaturing and native conditions.

9p dell39 03-04-2013 54 4   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Study of Harmonics-to-Noise Ratio and Critical-Band Energy Spectrum of Speech as Acoustic Indicators of Laryngeal and Voice Pathology

9p dauphong20 10-03-2012 35 3   Download