Jawaharlal Nehru Centre for Advanced Scientific Research

Ritu Gupta

Giridhar Udapi Rao Kulkarni

Boya Radha

Kunala Durga Mallikarjuna Rao

Shanmugam Kiruthika

The present disclosure provides compositions comprising colloidal matter in solvent, employed for crackle formation when exposed to surface of a substrate. The said compositions crackle spontaneously without any external stimuli when exposed to the substrate surface as a film. The present disclosure also relates to substrates having a film by exposure to said composition and a method of preparing said substrate. The present disclosure also relates to patterned substrates fabricated with material or energy inputs deposited in template formed by crackling of the film and a method of preparing said patterned substrate and a kit for obtaining such substrates. The present disclosure also relates to using the said substrates for various applications specifically in the field of electronics or optoelectronics.

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Bengaluru, India

Ritu Gupta