Publications

@article{Austin2025-dm,

title = {Inkjet printing of heterostructures: Investigation and  strategies for control of interfaces},

author = {Jonathan S Austin and Yundong Zhou and Geoffrey Rivers and Negar Gilani and Feiran Wang and Christopher J Tuck and Ian S Gilmore and Richard J M Hague and Gustavo F Trindade and Lyudmila Turyanska},

doi = {10.1021/acsami.4c21170},

year  = {2025},

date = {2025-03-01},

urldate = {2025-03-01},

journal = {ACS Appl. Mater. Interfaces},

volume = {17},

number = {11},

pages = {17230\textendash17237},

publisher = {American Chemical Society (ACS)},

abstract = {Development of printed electronics requires understanding and 

 control of the interfaces in heterostructure devices. However, 

 investigation of the interfaces between dissimilar materials to 

 achieve control of intermixing presents challenges. Here, we 

 report investigation of interfaces in inkjet printed 

 heterostructures by time-of-flight secondary ion mass 

 spectrometry (ToF-SIMS), focused ion beam scanning electron 

 microscopy (FIB-SEM), and energy dispersive X-ray (EDX) analysis 

 to provide complementary insights into the intermixing 

 phenomena. By examining various heterostructures of 0D (CsPbBr3 

 nanocrystal), 2D (inkjet printed graphene, iGr), and polymeric 

 (PEDOT:PSS) materials deposited with different printing 

 parameters, we established the effect of ink composition and 

 printing parameters on the intermixing depth. We demonstrated 

 that in the heterostructures where the intermixing is dominated 

 by layer porosity, the intermixing depth does not affect the 

 electrical properties of the device, while intermixing by layer 

 redispersion results in the decrease of the effective layer 

 thickness accompanied by an increase of electrical resistance. 

 The strategy for control over the interfacial composition and 

 morphology in printed heterostructures could enable improved 

 design and performance of printed devices.},

keywords = {graphene, heterostructures, inkjet printing, multimaterial, PEDOT:PSS, perovskite CsPbBr3},

pubstate = {published},

tppubtype = {article}

}