IEC 62899-203:2018
(Main)Printed electronics - Part 203: Materials - Semiconductor ink
Printed electronics - Part 203: Materials - Semiconductor ink
IEC 62899-203:2018(E) defines terms and specifies standard methods for characterisation and evaluation. This document is applicable to semiconductor inks and semiconductive layers that are made from semiconductor inks.
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IEC 62899-203 ®
Edition 1.0 2018-09
INTERNATIONAL
STANDARD
colour
inside
Printed electronics –
Part 203: Materials – Semiconductor ink
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IEC 62899-203 ®
Edition 1.0 2018-09
INTERNATIONAL
STANDARD
colour
inside
Printed electronics –
Part 203: Materials – Semiconductor ink
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.045; 87.080 ISBN 978-2-8322-6073-9
– 2 – IEC 62899-203:2018 © IEC 2018
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Atmospheric conditions for evaluation and conditioning . 10
5 Evaluation of properties of semiconductor ink . 10
5.1 Specimen . 10
5.2 Contents . 10
5.2.1 Solid contents . 10
5.2.2 Non-volatile content . 10
5.3 Physical properties . 11
5.3.1 Density . 11
5.3.2 Rheology . 11
5.3.3 Surface tension . 12
5.3.4 Flash point . 12
5.3.5 Evaporation rate . 12
6 Properties of semiconductive layer . 13
6.1 Semiconductor type . 13
6.2 Test piece . 13
6.2.1 General . 13
6.2.2 Substrate . 13
6.2.3 Semiconductor ink . 13
6.2.4 Dimensions of test piece . 13
6.2.5 Preparation of test piece . 14
6.3 Electrical properties . 14
6.3.1 Charge mobility . 14
6.3.2 Dielectric properties . 14
6.3.3 Ionisation potential . 15
6.4 Optical properties . 15
6.4.1 Overview . 15
6.4.2 Luminous transmittance . 15
6.4.3 Chromaticity . 16
6.4.4 Uniformity of colour . 16
6.4.5 Haze . 18
6.4.6 Refractive index . 18
6.4.7 Luminous transmittance . 18
7 Storage . 19
7.1 Storage conditions . 19
7.2 Method for measuring deterioration caused by ageing . 19
Annex A (informative) Example of measurements for measuring the deterioration of
ink caused by ageing . 20
Annex B (informative) Example of chromacity uniformity measurement test points . 21
Bibliography . 22
Figure A.1 – Example of a series of TFT mobility measurements for an ink to evaluate
deterioration over time . 20
Figure B.1 – Chromacity uniformity test point locations . 21
– 4 – IEC 62899-203:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PRINTED ELECTRONICS –
Part 203: Materials – Semiconductor ink
FOREWORD
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International Standard IEC 62899-203 has been prepared by IEC technical committee 119:
Printed Electronics.
The text of this International Standard is based on the following documents:
FDIS Report on voting
119/226/FDIS 119/234/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 62899 series, published under the general title Printed electronics,
can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 6 – IEC 62899-203:2018 © IEC 2018
INTRODUCTION
The IEC 62899 series deals mainly with evaluation methods for materials of printed
electronics. The series also includes storage methods, packaging and marking, and
transportation conditions.
The IEC 62899 series is divided into several parts according to each material. Each part is
prepared as a generic specification containing fundamental information for the area of printing
electronics.
The IEC 62899 series consists of the following parts:
Part 1: Terminology
Part 201: Materials – Substrates
Part 202: Materials – Conductive ink
Part 203: Materials – Semiconductor ink
Part 250: Material technologies required in print
...
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