Invention Grant
- Patent Title: Transparent conductor materials with enhanced near infrared properties and methods of forming thereof
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Application No.: US17038991Application Date: 2020-09-30
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Publication No.: US11891687B2Publication Date: 2024-02-06
- Inventor: Rinu Maniyara , Prantik Mazumder , Valerio Pruneri
- Applicant: Corning Incorporated , ICFO—The Institute of Photonic Sciences , INSTITUCIÓ CATALANA DE RECERCA I ESTUDIS AVANÇATS
- Applicant Address: US NY Corning
- Assignee: CORNING INCORPORATED,ICREA,ICFO
- Current Assignee: CORNING INCORPORATED,ICREA,ICFO
- Current Assignee Address: US NY Corning; ES Barcelona; ES Castellfedels
- Main IPC: C23C14/58
- IPC: C23C14/58 ; C23C14/35 ; C23C14/08 ; H01B1/08

Abstract:
A method is provided for manufacturing an article comprising a transparent conductive material, wherein a transparent conductive material (e.g., indium tin oxide) is deposited onto a substrate (e.g., fused silica) by physical vapor deposition, then annealed at high temperature (i.e., at least 450° C.) in a nitrogen atmosphere. The resulting article comprises a transparent conductive material that reduces the trade-off between low resistivity (or sheet resistance) and high near infrared transmission. For example, the transparent conductive material thus obtained may possess a transmission of at least 80% at 1550 nm while having a resistivity of less than or equal to about 5×10−4 Ohm-cm and a Haacke figure of merit of at least about 40×10−4Ω−1. Also provided is a method for modulating the resistivity and/or the near infrared transmission of a transparent conductive material by annealing the transparent conductive material at a high temperature under nitrogen atmosphere.
Public/Granted literature
- US20210095371A1 TRANSPARENT CONDUCTOR MATERIALS WITH ENHANCED NEAR INFRARED PROPERTIES AND METHODS OF FORMING THEREOF Public/Granted day:2021-04-01
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