Khurram Usman

ORCID: 0000-0003-1861-0678
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About
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Research Areas
  • Organic Electronics and Photovoltaics
  • Organic Light-Emitting Diodes Research
  • Perovskite Materials and Applications
  • Conducting polymers and applications
  • Luminescence and Fluorescent Materials
  • Quantum Dots Synthesis And Properties
  • Advanced Sensor and Energy Harvesting Materials
  • Ga2O3 and related materials
  • Thin-Film Transistor Technologies
  • GaN-based semiconductor devices and materials
  • ZnO doping and properties
  • Block Copolymer Self-Assembly
  • Chalcogenide Semiconductor Thin Films

South China Normal University
2019-2023

Ningbo Institute of Industrial Technology
2017-2021

Chinese Academy of Sciences
2017-2021

University of Chinese Academy of Sciences
2017-2018

Holst Centre (Netherlands)
2011

Abstract This review provides an up‐to‐date about the small molecule interlayers (SMIs) in organic solar cells (OSCs). Compared to polymer interlayers, SMIs exhibit intrinsic advantages such as easy synthesis and purification, monodispersity, well‐defined chemical structure, high batch‐to‐batch reproducibility. Recently, various have been reported with landmark efficiencies of over 10% both conventional inverted OSCs, exhibiting promising potential commercial application. In this review,...

10.1002/aenm.201702730 article EN Advanced Energy Materials 2018-01-26

Landmark power conversion efficiency (PCE) over 10% has been accomplished in the past year for single‐junction organic solar cell (OSCs), suggesting a promising potential application of this technology. However, most high efficient OSCs are based on inverted configuration. Regular structure with both and good stability still rarely reported to date. In work, by utilizing new designed ligand‐free non‐thermal‐annealing‐treated Al‐doped ZnO cathode interlayer, greatly improved simultaneously...

10.1002/advs.201700053 article EN cc-by Advanced Science 2017-04-21

Abstract Compared to their inorganic counterparts, organic optoelectronic devices receive considerable attention due lower cost, mechanical flexibility, bandgap engineering, and solution processability. In particular, achieving sustainability in solar cells light emitting is an important milestone the development of green electronics. This has facilitated a close collaboration between different technological fields, opening new ways for low‐cost production application biomaterials. Recently,...

10.1002/admt.202201390 article EN publisher-specific-oa Advanced Materials Technologies 2023-02-03

Abstract This article describes a combined experimental and theoretical study on nanophase structure development as result of liquid phase demixing in solution‐cast blends the organic semiconductor poly(9,9′‐dioctyl fluorene) (PFO) ferroelectric polymer poly(vinylidene fluoride‐ co ‐trifluoroethylene) (P(VDF‐TrFE)). Blend layers (200 nm) are prepared by spin coating 1:9 (w/w) PFO:P(VDF‐TrFE) blend solution common solvent poly(ethylenedioxy thiophene)/poly(styrene sulfonate) substrate. Owing...

10.1002/polb.22289 article EN Journal of Polymer Science Part B Polymer Physics 2011-06-08

Group III–V semiconductors with direct band gaps have become crucial for optoelectronic and microelectronic applications. Exploring these materials spintronic applications is an important direction many research groups. In this study, pure cobalt doped GaN nanowires were grown on the Si substrate by chemical vapor deposition (CVD) method. Sophisticated characterization techniques such as X-ray diffraction (XRD), Scanning Electron Microscope (SEM), Energy Dispersive X-Ray Spectroscopy (EDS),...

10.3390/ma13163537 article EN Materials 2020-08-11
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