DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA. Information Disclosure Statement The information disclosure statement (IDS) submitted on 1 September 2023 was filed. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement has been considered by the Office. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b ) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the appl icant regards as his invention. Claims 1-11 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. As to Claim 1 : The term “ moderately polar ” in claim 1 is a relative term which renders the claim indefinite. The term “ moderately polar ” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. It is not clear what is considered to be a “moderately polar” polymer as this does not appear to be a common term in the art and there is no clear definition in the specification. As to Claim 1 : The claim sets forth the limitation “preferably with a chain length comprised between 4 and 12 carbon atoms. The term preferably renders this limitation indefinite as it is not clear if the chain has to be between 4 and 12 carbon atoms or if the chain can be any length. As to Claim 2 : The claim sets forth the limitation “selected among monovalent cations such as K + and Rb + ”. The terminology “such as” renders the claim indefinite as it is unclear what monovalent cations would read on the instant claim. As to Claim 2 : The claim sets forth the limitation “ di valent cations such as Mn 2 + , Cd 2 + , Zn 2+ , Sn 2+ , and Ge 2+ ”. The terminology “such as” renders the claim indefinite as it is unclear what di valent cations would read on the instant claim. Claim 3 recites the limitation "the polar moieties" in Line 2 . There is insufficient antecedent basis for this limitation in the claim. Claim 3 recites the limitation "said non-polar or moderately polar moieties" in Line 3. There is insufficient antecedent basis for this limitation in the claim. As to Claim 3 : The term “ moderately polar ” in claim 3 is a relative term which renders the claim indefinite. The term “ moderately polar ” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. It is not clear what is considered to be a “moderately polar” polymer as this does not appear to be a common term in the art and there is no clear definition in the specification. As to Claim 12 : The claim sets forth the limitation “an organic cation selected between MA and FA”. However, it is not clear what MA or FA is in the instant claim. The specification describes MA + and FA + as methylammonium and formamidinium and that is what the cations are considered to be for the purposes of further consideration but appropriate correction is needed. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale , or otherwise available to the public before the effective filing date of the claimed invention. Claim 12 is rejected under 35 U.S.C. 102 (a)(1) as being anticipated by Krieg et al. (US 2018/0355244, hereinafter referred to as “Krieg”) . As to Claim 12 : Krieg teaches a nanocrystal with a core of FAPbBr 3 a shell comprising a polycarbonate and polystyrene copolymer and an additive molecule between the core and the shell comprising ( Lauryldimethylammonio )acetate and oleylamine [0287-0290]. Correspondence Any inquiry concerning this communication or earlier communications from the examiner should be directed to FILLIN "Examiner name" \* MERGEFORMAT ANDREW J OYER whose telephone number is FILLIN "Phone number" \* MERGEFORMAT (571)270-0347 . The examiner can normally be reached FILLIN "Work Schedule?" \* MERGEFORMAT 9AM-6PM EST M-F . Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, FILLIN "SPE Name?" \* MERGEFORMAT Mark Eashoo can be reached at FILLIN "SPE Phone?" \* MERGEFORMAT (571)272-1197 . The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. 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