Technical Seminar 1: Materials

Chair:

Haruhiko Nakaniwa
Market Development Manager, PV Fluoro Materials
Du Pont Kabushiki Kaisha

Date:

Wednesday, June 30

Time:

10:30-13:00

Venue:

ANNEX Hall, Pacifico Yokohama

Cost:

Register by June 23 JPY 19,000 / Register from June 24 JPY 24,000. Includes 5% tax, proceedings (CD-ROM)

Interpretation:

Japanese-English interpretation available

Registration:

Register

10:35–11:10

Supply Trend and LCA of Resource for PV
Komei Halada
Managing Director, Exploratory Materials Research Laboratory for Energy and Environment
National Institute for Materials Science (NIMS)

In a solar cell, which is an energy conversion semiconductor fundamentally,various materials are used not only for the semiconductor itself but for condensing, reflection, an electrode, a support structure, etc.. As the size of the scale of the spread of future is taken into consideration, it is necessary to estimate the impact in the resource side by use of those materials, and an environmental side in advance.Here, while introducing how in the present stage over resources or an environmental impact to catch about various kinds of substance and materials used for solar cell relation, many points which should be taken into consideration in the case of future development are described.

11:10–11:45

PV Power Generation & Solar Glass

Masato Hyodo
General Manager, Japan Building Products Solar Energy Business,
Nippon Sheet Glass Co., Ltd.

Actions for reducing CO2 emission on the earth scale came to be carried out in view of the issue of global warming these days. Photo Voltaic devices are one of the most promising solutions among them and being received big expectations. In this session, the respective role of glass materials, which are essential for crystal types, film types, and concentrating PV devices, is presented. Also, some comments on the future prospective for performance improvement are reported.

11:45–12:15

Impact of High Humidity Barrier Film in PV Module

Shigeru Matsuoka
General Manager, Gas Barrier Film & PV Materials Project
Mitsubishi Plastics, Inc.

Plenty types of PV FrontPanel and BackSheets are used in the market. The most important property is preventing deterioration with time. Not only climate durability and voltage resistance but also stable humidity barrier is emphasized. With the development of more advanced cells such as α-Si, CIGS, DSC and OPT, greater emphasis is being placed on making cells thinner. This trend makes requirement of humidity barrier higher. Additionally, using plastic films brings to fruition of thin, light and flexible PV Module. This presentation shows property of humidity barrier and PV module.

12:15–12:50

The Development of Non-cure Type PV Encapsulant Potential of Ionomer-based Encapsulant

Kazuyuki Nakata
Next Generation PV Development Program Leader, Technical center
Du Pont－Mitsui Polychemical co., LTD

DuPont-Mitsui Polychemical has been manufacturing and supplying the most common PV encapsulant material, EVA, for more than 30 years. We have been also taking on a challenge to propose a more sophisticated encapsulant, working closely with the market. Then, we've just launched an ionomer-based encapsulant which did not require a post cure system. We would like to present our understanding of the market trend, the background of our research, and the concepts of our next generation PV encapsulant.

12:50-13:00

Authors Interview