Dear Amitabh,
I just came across following article
that I thought might interest you
Warm Regards,
Hemen Parekh / Mumbai
+91 98675 50808
Sent: 04 December 2017 11:08
To: 'a.banerji@uni-koeln.de'
Cc: 'hcp@RecruitGuru.com'
Subject: Thank You
Dear Amitabh,
It was a pleasure listening to you yesterday ( Chai and Why ? / Prithvi Theatres )
[HCP]
I reproduce below , a “ draft “ of my blog , which I
plan to upload on my blogging site , if it is OK with you
[HCP]
Please point out corrections – if any – to be made
before uploading
[HCP]
Once uploaded , it is my practice to send it as emails
to the Central Cabinet Ministers and other Policy Makers
[HCP]
With Regards,
hemen
parekh
(
M ) +91 - 98,67,55,08,08
Chai and Why ?
This is the name of a “ citizen
awareness “ program being held every Sunday ( 11 am ) at Prithvi Theatres (
Juhu / Mumbai ) . I believe , it is arranged by TIFR and now , celebrating 10th
year
I attended yesterday’s program , which
focussed on OLED ( Organic Light
Emitting Diodes )
It was a demo-lecture by Prof Amitabh Banerji of the University of Koln
( Germany )
Prof Banerji is currently touring India
with a few of his students and giving demo-lectures at various Indian
Universities
During the talk , Prof Banerji actually
“ constructed “ a small OLED on a piece
of glass , with the help of tools /
chemicals that he carried in a KIT ( - a small plastic bag )
In Germany , Koln University sells this KIT BAG for
Euro 500
Prof Banerji has given a few KITS to
Prof Bhattachara of TIFR , for propagating the concept of OLED
I will not go into the detailed ( but,
extremely SIMPLE ) process of
constructing a OLED , within a few
minutes , even by a School-going child !
When that small ( 2 inch by 2 inch )
piece of glass , turned into a OLED ,
audience could see ( on the screen ) , actual glow of light when a small
current was passed through the conducting layer on the glass
By reversing the process and shining a
bright light ( from a torch or a lamp ) , it was shown that a small current flowed
in the circuit !
Even now , it is possible to fabricate OLED using thin plastic membranes , which may
, someday soon , replace the screens of smart
phones . Such phones may come to the market next year
I asked Prof Banerji :
“ Can flexible plastic OLED
of much higher capacities , be mounted on roof-tops of Electric Cars , to
produce enough power to charge a small Lithium Battery ?
Can this replace glass-based PV Solar
Panels which ISRO mounted on an OMNI ( in May 2017 ) to charge its battery for
150 Km run ?
If technology advances sufficient enough
for commercial production of high capacity flexible OLED Solar Power generator for car roof-tops , can this mean
continuous charging of Li-ion batteries , eliminating ( - or , at least ,
vastly reducing ) the need for Battery Charging
Stations for India’s proposed 6 million
Electric Vehicles on the roads , by 2022 ? “
Prof Banerji replied :
“ Very good question .
This is bound to happen , may be within 10 years . Unfortunately , current
constraints are :
# Plastic-based OLED have a low conversion efficiency , of around 6 %
as against 16 % - 25 % for a glass-based PV cell
# These are
unstable and rapidly degrade in the presence of Oxygen and Ultra Violet light
But advantage is :
-
a plastic-based OLED does not
need direct sunlight . It can generate power , even in a diffused / indirect
light !
-
Companies are experimenting with even OLED
embedded wall paint for painting house exteriors , which can supply
electricity to entire building “
-
If our Policy Makers ( in the Ministry for Renewable
Energy / NITI Aayog / Transport Ministry ) want clarifications / directions , I
am sure Prof Banerji ( a.banerji@uni-koeln.de
) would be happy to help
==============================================================================
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