3rd Workshop on the Future Direction of Photovoltaics
8-9 March 2007, at Aogaku Kaikan in Tokyo, Japan
Scope of Workshop: Further development in the science and technology of photovoltaics is required in order to realize the2030PV roadmap in Japan and meet worldwide sustainable energy targets. Ultimately, photovoltaics must substitute fossil
energy sources, thereby solving many of the present global environmental problems.
For the above purpose, the scope of this workshop is to provide an opportunity to review and discuss the present status andfuture of solar cells, materials and industrial technologies.
Organized by:

The Japan Society for the Promotion of Science,
The 175th Committee on Innovative Photovoltaic Power Generating Systems
March 8, Thursday

Opening
10:00-10:10
Session 1
10:10-10:30
10:30-11:10
11:10-11:50

Opening Remarks
M.Konagai (Tokyo Tech), Chairman of the JSPS 175th Committee
National Program
Japanese new R&D program
K.Matsubara (NEDO)
The Latest Development Trends of PV Industry in China
Cui Rong Qiang (Shanghai Jiao Tang Univ.)
PV R&D Program in Korea
Donghwan Kim (Korea University)

11:50-12:50

Lunch

Session 2
12:50-13:30

Bulk Si Solar Cells
NEDO R&D for next generation PV systems from 2006 to 2009 (I)- silicon, oraganic and dye sensitized solar cells
M.Kondo (NEDO Project Leader, AIST)
Some Mechanisms of Performance Limitations of mc-Si Solar Cells and Approaches toOvercome Them
B.Sopori (NREL)
Thin High-Efficiency Crystalline Si Solar Cells
Stefan Glunz (Fraunhofer ISE)
Short presentation (10 minutes presentation, 5 minutes discussion)
Impurity distribution in a polycrystalline silicon substrate for solar cells
H. Kawai, F. Kusuoka, K. Arafune, H. Sai,Y. Ohshita, M.Yamaguchi (Toyota Technological Institute )Development of Spherical Silicon Solar Cells
T. Minemoto (Ritsumeikan Univ.)

13:30-14:10
14:10-14:50
14:50-15:20

15:20-15:40

Coffee BreakSession 3
15:40-16:20

Si Thin-Film Solar Cells
High Efficiency Amorphous, Microcrystalline and Micromorph Thin-Film Solar Cells on
Various Substrates
C.Ballif (Univ. Neuchatel)
Development of Triple Jounction Thin-Film Solar Cells
S.Guha and J.Yang (United Solar Ovonic Corporation)

16:20-17:00
17:00-17:30

Short presentation (10minutes presentation, 5minutes discussion)
Ultrafast deposition of polycrystalline silicon films using a new microwave induced plasma source
Haijun Jia, Hiroshi Kuraseko and Michio Kondo(AIST)
Nano-crystalline Si dot superlattice
Y.Kurokawa, S.Miyajima, A.Yamada and M.Konagai(Tokyo Tech)18:00Reception
March 9, Friday

Session 5
9:00-9:30

9:30-10:10
10:10-10:50

CIGS and Related Issues
NEDO R&D for next generation PV systems from 2006 to 2009 (Ⅱ)- Thin film CIS solar cells and Ⅲ-Ⅴ ultra high-efficiency solar cells
T.Wada (NEDO Sub-Project Leader, Ryukoku Univ.)
Manufacturing Development and Prospects of Flexible CIGS Solar Cell
Ayodhya N. Tiwari (ETH)
Critical Issues for Wide Bandgap CuInSe2-based Solar Cells
William Shafarman (IEC, Univ. Delaware)

10:50-11:10

Coffee BreakSession 3
11:10-11:50

Super-high efficiency/novel concept
50% Efficient Solar Cells
Christiana Honsberg (Univ. Delaware)
Short presentation (10 minutes presentation, 5 minutes discussion)
Manufacturing development of high efficiency concentrator cells
Tatsuya Takamoto (Sharp)

11:50-12:05

12:05-13:10

Lunch

Session 6
13:10-13:50

Dye Sensitized Cells and Organic Semiconductor Cells
Progress on Polymer and Dye Sensitized Solar Cells Research at ECN Solar Energy
A.C.Veltkamp, S.C. Veenstra, L.H. Slooff, W.J.H.Verhees, D. Moet, W. Eerenstein, P.M. Sommeling,
F.O. Lenzmann, C.L. Olson, T. Budel, M.J.A.A. Goris, N.J. Bakker, M.J. de Wild-Scholten
and J.M. Kroon (ECN)
Future direction on dye sensitized solar cells and organic solar cells
Michael Niggemann (Fraunhofer-Institut fur Solare Energie systeme)

13:50-14:30
14:30-14:45

Short presentation (10minutes presentation, 5minutes discussion)Development of dye-sensitized solar cell modules
T. Motohiro* and T. Toyoda**(* TOYOTA Central R&D Labs.,Inc. ** AISIN SEIKI CO.,Ltd.)

14:45-15:05

Coffee BreakSession 7

Manufacturing of Thin-Film Solar Cells
Short presentation (10minutes presentation, 5minutes discussion)
High efficiency thin film Si solar cell and module
K. Yamamoto (Kaneka)
Development of High Efficiency Thin Film Silicon Solar Modules
Y.Yamauchi(MHI)
Manufacturing of Flexible Film Solar Cells
A. Takano (Fuji Electric Systems Co., Ltd.)
Development of Thin-Film Silicon Solar Cells in Sanyo
A.Terakawa and M.Tanaka (Sanyo)
Key near-term R&D issues for continued improvement in CIS-based thin-film PV modules
Katsumi Kushiya(Showa Shell)

15:05-15:20
15:20-15:35
15:35-15:50
15:50-16:05
16:05-16:20

Session 6
16:20-17:00

Closing Session
PV activities in Japan: Today and Tomorrow
O.Ikki, I.Kaizuka and T.Ohigashi (RTS Corporation)