Organization: King Abdullah University of Science and Technology (KAUST)<\/p>\n
Faculty\/Department\/Division: Physical Science and Engineering Division, Materials Science and Engineering<\/p>\n
Location: Thuwal, Saudi Arabia<\/p>\n
Position: Postdoctoral Researcher in III\u2013V CQD Surface Chemistry and Ligand Engineering<\/p>\n
The FuN Lab at King Abdullah University of Science and Technology invites applications for a postdoctoral research position focused on colloidal quantum dots (CQDs) for high-performance infrared photodetectors and imaging systems.<\/p>\n
The research focuses on developing III\u2013V colloidal quantum dots, including InAs and InSb, along with Ag\u2082Te and extended-short-wave infrared (SWIR) PbS\/PbSe materials. The main objective is to establish a materials-to-device platform for next-generation SWIR and exploratory room-temperature mid-wave infrared (MWIR) photodetectors.<\/p>\n
The position focuses on the chemical control of quantum dot surfaces through surface reconstruction, ligand engineering, precursor chemistry and electronic passivation. The researcher will investigate how surface stoichiometry and ligand design affect charge transport, recombination, energy-level alignment and photodetector performance.<\/p>\n
The project aims to develop low-trap-density quantum dots and stable, solution-processed CQD inks suitable for infrared optoelectronic devices.<\/p>\n
Synthesize III\u2013V colloidal quantum dots using air-free methods.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Design and optimize precursor chemistry for InAs, InSb, Ag\u2082Te and PbS\/PbSe nanocrystals.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Develop surface reconstruction and ligand-exchange strategies.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Prepare stable CQD inks with controlled ligand density and colloidal properties.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Investigate precursor reactivity, nucleation, crystal growth, alloying and shell formation.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Characterize materials using XPS, UPS, FTIR, NMR, TEM, XRD, optical absorption, photoluminescence and time-resolved photoluminescence.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Fabricate CQD thin films and evaluate their morphology, conductivity, trap density and stability.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Study energy-level alignment between CQD films and charge-transport layers.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Investigate relationships between surface chemistry, optical properties, electronic properties and detector performance.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Collaborate with the device-focused postdoctoral researcher.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Prepare research manuscripts, contribute to grant reports and present findings at scientific meetings.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Maintain reproducible experimental protocols and accurate research records.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Mentor graduate students and contribute to a collaborative laboratory environment.<\/p>\n<\/div>\n<\/div>\n<\/li>\n<\/ul>\n
PhD in chemistry, materials science, nanoscience or a related field.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Strong experience in colloidal nanocrystal synthesis.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Demonstrated expertise in air-free synthesis and Schlenk or glovebox techniques.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Experience with ligand exchange, surface passivation or nanocrystal surface chemistry.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Familiarity with optical and structural characterization of semiconductor nanocrystals.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
A strong publication record in nanomaterials, colloidal quantum dots or optoelectronic materials.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Ability to work independently and collaboratively in a multidisciplinary research team.<\/p>\n<\/div>\n<\/div>\n<\/li>\n<\/ul>\n
Direct experience with III\u2013V colloidal quantum dots, particularly InAs, InSb or alloyed III\u2013V nanocrystals.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Experience with solution-phase ligand exchange.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Knowledge of trap-state analysis, surface reconstruction and electronic passivation.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Experience with XPS\/UPS-based surface characterization and energy-level analysis.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Experience preparing CQD thin films for photodetectors, LEDs or solar cells.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Knowledge of infrared photodetectors, thin-film processing or optoelectronic device physics.<\/p>\n<\/div>\n<\/div>\n<\/li>\n<\/ul>\n
Employment type: Postdoctoral research position.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Duration: Not specified in the supplied advertisement.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Start date: Not specified.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Research group: FuN Lab.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Research focus: III\u2013V colloidal quantum dots, surface chemistry, ligand engineering and infrared photodetectors.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Application method: Online submission through Interfolio.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Email applications: Not accepted.<\/p>\n<\/div>\n<\/div>\n<\/li>\n<\/ul>\n
Salary: Not specified in the supplied advertisement.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Funding details: Not specified.<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Other benefits: Not specified.<\/p>\n<\/div>\n<\/div>\n<\/li>\n<\/ul>\n
The supplied advertisement does not specify the required application documents. Applicants should consult the official application portal for the submission requirements.<\/p>\n
No specific English language requirement was stated in the supplied advertisement.<\/p>\n
Colloidal quantum dots<\/p>\n<\/div>\n<\/div>\n<\/li>\n
III\u2013V semiconductor nanocrystals<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Infrared photodetectors<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Ligand engineering and surface chemistry<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Materials chemistry<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Nanomaterials and nanotechnology<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Optoelectronic materials<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Semiconductor thin films<\/p>\n<\/div>\n<\/div>\n<\/li>\n
Surface reconstruction and electronic passivation<\/p>\n<\/div>\n<\/div>\n<\/li>\n