. ▁. ▁In ▁between , ▁he ▁had ▁a ▁short ▁st int ▁as ▁an ▁Ind o - US ▁fellow ▁at ▁the ▁labor atory ▁of ▁Alan ▁J . ▁He eg er , ▁a ▁Nobel ▁La ure ate ▁in ▁Physics , ▁at ▁the ▁University ▁of ▁California , ▁Santa ▁Barbara ▁from ▁August ▁ 2 0 1 2 ▁to ▁July ▁ 2 0 1 3 , ▁and ▁visit ing ▁Professor ▁at ▁Sh iz u oka ▁University , ▁Japan ▁from ▁October ▁ 2 0 1 6 ▁to ▁December ▁ 2 0 1 6 . ▁ ▁Research ▁▁ ▁Gu pta ▁is ▁known ▁to ▁have ▁made ▁notable ▁contributions ▁in ▁the ▁fields ▁of ▁organ ic ▁solar ▁cells , ▁carbon ▁nan ot ub es ▁and ▁För ster ▁reson ance ▁energy ▁transfer . ▁His ▁efforts ▁are ▁reported ▁to ▁have ▁assist ed ▁in ▁transl ating ▁the ▁science ▁into ▁vi able ▁techn ological ▁products . ▁His ▁studies ▁have ▁been ▁documented ▁by ▁way ▁of ▁a ▁number ▁of ▁articles ▁and ▁Research G ate , ▁an ▁online ▁article ▁repository ▁of ▁scientific ▁articles , ▁has ▁listed ▁ 9 0 ▁of ▁them . ▁He ▁has ▁also ▁delivered ▁pl en ary ▁or ▁ke yn ote ▁speech es ▁at ▁various ▁sem in ars ▁and ▁con ferences ▁and ▁is ▁the ▁coordin ator ▁of ▁the ▁pre - con ference ▁work shop ▁on ▁Th in ▁Film ▁Sol ar ▁C ells ▁scheduled ▁to ▁be ▁held ▁in ▁November ▁ 2 0 1 7 , ▁in ▁connection ▁with ▁the ▁" 1 7 th ▁International ▁Conference ▁on ▁Th in ▁Films - 2 0 1 7 ▁( I CT F -