(19)

(11)

EP 3 607 588 A1

(12)

(43) Date of publication: 12.02.2020 Bulletin 2020/07 (21) Application number: 18780734.2 (22) Date of filing: 30.03.2018

(51) International Patent Classification (IPC):  H01L 31/0352(2006.01) H01L 31/0725(2012.01) H01L 31/0749(2012.01) H01G 9/20(2006.01) H01L 31/0224(2006.01) H01L 31/073(2012.01) B82Y 20/00(2011.01) (86) International application number: PCT/US2018/025427 (87) International publication number: WO 2018/187176 (11.10.2018 Gazette 2018/41)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 03.04.2017 US 201762480572 P (71) Applicant: The Johns Hopkins University Baltimore, MD 21218 (US)	(72) Inventors: THON, Susanna M. Baltimore, MD 21218 (US) LIN, Yida Baltimore, MD 21218 (US) QIAN, Gary Baltimore, MD 21218 (US) UNG, Garrett Baltimore, MD 21218 (US) (74) Representative: Cameron Intellectual Property Ltd  Moncrieff House 69 West Nile Street Glasgow G1 2QB Glasgow G1 2QB (GB)