H*****l
发帖数: 702 | 1 In EES, there are sufabs, mocvd group, c-Si group and some small projects
doing CIGS and novel batteries...
Sunfabs have custmoers..although in deep shit
MOCVD groups till now make not a single cent worthing products... |
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f*******i
发帖数: 8492 | 2 Diffusion barriers for CIGS solar cells on metallic substrates ？
done~ |
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m****z
发帖数: 1394 | 3 这里有人有这个DATABASE吗？FIRST CALL从WRDS把这个撤掉了。 |
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p****u
发帖数: 1940 | 5 I have the data files.
If you need them, email me. we can discuss it further.
l****[email protected]
thanks |
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j********1
发帖数: 628 | 6 现在job market情形应该不错吧。尤其是thin film方面的。
thin film solar 里发展最快的CdTe,first solar 已经把效率做到14%了（两周前san
diego PVSC keynote speech by first solar),一般bulk silicon solar cell 不过15
% 左右，而且成本低得惊人，三年后的产品都已经卖光了，一直在招人。ava solar也
做CdTe，马上也要大规模生产了，据说成本比first solar 还要低。
a-Si和micromorph Si方面，AMAT在做设备，把它在半导体和LCD方面的经验移植过来，
据说它sunfab已经卖掉好几台了。我知道有好多人从半导体公司跳到solar公司（有不
少是被迫的，因为被layoff).
cigs和dssc也有公司宣布开始工业生产（比如nanosolar),但偶不看好这两个技术。
把实验室里的技术放大到工厂里的流水线上，有大量的process engineering的工作要
做，只在大学实验室里做研究不跟工业界接触，体会不到的（就象欧以前一样）。现在
这方 |
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H*****l
发帖数: 702 | 7 In 33 PVSC,First solar demo 15%
In May issue of Progressive in Photo, CIGS cell reaches 19.9% in lab
while in single crystal silicon solar cell...
Sanyo mass production efficiency is 21%
Sunpower is 22%
That is much near to the upper limitation of state of art silicon solar cell
under one sun illumination...while silicon in itself is just not suitable
for concentrated illumiation....
on |
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R****o
发帖数: 22 | 9 Solar Cell，一般好像这么划分的，第一代是在单晶硅上做的，第二代是薄膜型的，如
多晶硅，CIGS, 第三代是廉价，绿色，柔性的，如有机等。
做Solar Cell的研究组不计其数啊，这东西现在太热了。 |
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H*****l
发帖数: 702 | 11 Wow
第三代光伏？
IBM都fan的东西。。。
IBM T.J.Watson +CIGS..无敌组合阿。。。（做无限yy憧憬状。。赫赫） |
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H*****l
发帖数: 702 | 12 那你还往solar cell的坑里跳
Caltech 主要做 hwcvd growth of thin film si solar cell
100 multijunction solar cell...那里才毕业一个去yale做ap
mit也是无数层junction solar cell
psu基本灭了，a-si的研究，人都老了
pudure那哥们这么多年还是associate,唉。。。。solar 受歧视阿
牛x的还是gatech
ud的 silicon 才起来4年，某些group的工作惨不忍睹。。。。
竟然ibm开始玩 cigs,GE开始玩cdte了 |
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j********1
发帖数: 628 | 13 a. nanosolar raised 300 million last week(that is 300 million down the drain
in addition to the 100 million they raised last year)
b. ava solar raised 104 million last week (possibly another first solar)
c. solyndra trying to raise 350 million, reported burn rate of 15 million/
month
(sooner or later, one of these big name CIGS companies will collapse)
d. optisolar to sell 550 megawatt solar power (thin film silicon) to
california utility company PG&E. |
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H*****l
发帖数: 702 | 14 你还混物理？
LHC那歌真牛B
这边一哥们听了以后，感慨，幸好你当年力劝来做solar cell,
虽然也是bulb（某PI在他的startup 当面说了，现在solar 就是bulb,明年以后只有最
strong的可以survial...)，总比LHC实验一做，百万paper成废纸好
DOE NREL已经把 CdTe/CdS solar cell的funds基本砍光了，基本就只support Univ.
of South Florida and NREL自己的组了
看来下一步就是要拿CIGS下手了。。。。
最后的幸存者还是silicon哈哈哈哈哈哈哈哈哈哈 |
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L****a
发帖数: 572 | 15 thin-film solars are also printable, e.g. a-Si, CIGS.
Lab product is lab product. In real-world, production process is key to
success. If a printable, organic solar has effiency 60%, but you can
only ouput 10MW every year, with $20 per Watt, still nobody will use it. |
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j********1
发帖数: 628 | 16 isn't nanosolar cigs film deposited on flexible stainless steel foil
employing roll by roll printing technology? I think that is one of their
selling points: low cost, efficient... Have they changed their directions? |
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L****a
发帖数: 572 | 17 thin-film solars are also printable, e.g. a-Si, CIGS.
Lab product is lab product. In real-world, production process is key to
success. If a printable, organic solar has effiency 60%, but you can
only ouput 10MW every year, with $20 per Watt, still nobody will use it. |
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j********1
发帖数: 628 | 18 isn't nanosolar cigs film deposited on flexible stainless steel foil
employing roll by roll printing technology? I think that is one of their
selling points: low cost, efficient... Have they changed their directions? |
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t***3
发帖数: 100 | 19 本人创建了一个太阳能交流群 46265152
希望所有与太阳能研究（c-Si, p-Si III-VI, CIGS, CdSe, polymer and nano et
al) 相关的朋友加入，大家一起分享资源，交流心得，共同提高！ |
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H*****l
发帖数: 702 | 20 CdTe比CIGS都有前途。。。
polymer还是趁早一边歇着把 |
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L****a
发帖数: 572 | 21 他们的薄膜是做在什么基带上的? 一条有多长, 多宽?
他们目前的 production capacity 有多少瓦? |
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j********1
发帖数: 628 | 22 只知道他们的ceo最近滚蛋了，正试量产也被推迟了一年。肯定是工艺仍然有问题。 |
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L****a
发帖数: 572 | 23 嗯, 最近又跳出来说要量产了, 要建厂房了. 可能是又没钱, 要拉钱了. |
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a*******i
发帖数: 11664 | 24 cigs能不能做到薄膜上有那么大影响么？如果在Mo/glass上做好的话，足够用了。 |
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L****a
发帖数: 572 | 25 但是象 UniSolar 那样的 module 就不需要玻璃啊 (20 年 warranty).
他们有玻璃的产品, 但基本上不生产了. 因为玻璃产品没法和 c-Si 竞争.
或者是因为 CIGS 的 thin-film 必须玻璃保护?
其实我也是怀疑 Ascent solar 的产品, 最终 durability 会有问题.
sorry
did |
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a*******i
发帖数: 11664 | 26 8-10%你说的是cell还是module？cell绝对不止。
有很多公司做cigs on glass，都还不错。 |
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j********1
发帖数: 628 | 27 I alwayas have a question regarding roll-to-roll on stainless steel: thermal
expanison.
Stainless steel has a much higher thermal expansion coefficient than either
a-Si or cigs films.
When the these cell are subject to heating and cooling cycles everyday for
twenty years, how is durability and degradation going to play out? Film
cracking due to different thermal expansion or peeling off? |
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L****a
发帖数: 572 | 28 That's an interesting point. I actually have no idea. I think only UniSolar' s people know how to handle this. But indeed, UniSolar's module has shorter warranty than other c-Si's panels. I also suspect Ascent's module has similar problem. They make cigs thin-film on plastic substrate, rather than stainless steel. How long will it last for plastic substrate? Is there any distortion problem due to daily expansion and contraction? Ascent just started their manufactruring, so we don't know yet
the |
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H*****l
发帖数: 702 | 29 that is why i said United solar is not a typical manufacturer
just big sized pilot line
UniSolar' s people know how to handle this. But indeed, UniSolar's module
has shorter warranty than other c-Si's panels. I also suspect Ascent's
module has similar problem. They make cigs thin-film on plastic substrate,
rather than stainless steel. How long will it last for plastic substrate? Is
there any distortion problem due to daily expansion and contraction? Ascent
just started their manufactruring, so |
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a*******i
发帖数: 11664 | 30 ft, cigs的生长温度和annealling温度是几百度，然后cool down到room temperature,
主要的mismatch是在这里吧。
thermal
either |
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H*****l
发帖数: 702 | 31 他们挑人很 tough
那些个面试的问题。。。
他们在CA有R&D，小小的做CIGS
在AZ有manufacturing
他们现在纯粹就是做DOE/SPC和reliability了
当然R&D也在做
不过如果和NREL的人没啥关系的话，基本是没可能进去了
做了5年thin film的人多了
不是某几个学校毕业的想进去也很难 |
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s*******a
发帖数: 17 | 32 Neither current c-Si or thin films (CdTe, CIGS,and a-Si) can be the final
solutions for affordable solar electricity.
So far, I believe NREL is the best institute for PV technologies.
Nevertheless, it is still an open area. |
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j********1
发帖数: 628 | 33 Just do not go for cigs or a-Si
eng |
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H*****l
发帖数: 702 | 34 impossible
CdTe or CIGS is dead. |
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H*****l
发帖数: 702 | 35 impossible
CdTe or CIGS is dead. |
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w********h
发帖数: 12367 | 36 Solar shakeout continues: Q-Cells to file for bankruptcy
By Ucilia Wang Apr. 2, 2012, 10:47am PT No Comments
Q-Cells was once the largest solar cell maker in the world. Now the company
says on Monday it will be filing for bankruptcy, which makes it the latest
example of the solar industries’ turmoil.
The German company has been in trouble for some time and tried several cost-
reduction measures to stay in business. The decline has been a long-time
coming and made worse by the particularly bruta... 阅读全帖 |
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D******e
发帖数: 1085 | 37 What kind of dumbass buys cigs for a cop instead of candies for himself? |
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j*****p
发帖数: 24000 | 38 Let me guess, a bang bang panda?
===============
What kind of dumbass buys cigs for a cop instead of candies for himself? |
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A*******s
发帖数: 9638 | 39 This case is tough. 20 WB for the first. (from BZ)
A 35 yrs old WF, was sent to ER by her husband in AM since he could not wake
her up.
The patient was entirely normal before last dinner. They planned to have
BBQ, but after she drank a can of beer and 3 cans of soda, she felt sick. So
she went to bed directly.
At ER, she was stuporous, a drug screen was neg. CT of brain, EKG, CXR were
all normal. LP is neg. UA(-), Blood culture was sent. All lab was normal
except Glucose was 60. So she was gi... 阅读全帖 |
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h***y
发帖数: 834 | 40 ☆─────────────────────────────────────☆
Aplusplus (Hakuna Matata) 于 (Sun Mar 27 11:11:49 2011, 美东) 提到:
首先我申明，我放弃我的ignore list， 欢迎所有ID参加。
每个医生护士或者其他相关人员， 无论在中国还是美国， 肯定都有一些case刻骨铭心
。 请大家把你印象最深的一例写出来， 与大家分享。 比方说， 清华男被鉈杀案，
那个中国来的护士就是诊断的关键， 相信本例就是她一辈子也忘不了的诊断。
我觉得这样的讨论有助于大家提高学医热情，丰富医学知识，开拓临床思维， 间接帮
助考版医生复习，准备CS，和 interview. 你要是能从中挑一个case让你PD
impressed，我想我的目的就达到了。
希望所有ID， 包括考生， resident， fellow， attending，PA/NP, nurse 和中国来
的医生不再从事医疗工作的， 都能奉献你的pearl. 英文中文都行。
我先来：
CC: Left leg pain for 5 days.
35 y... 阅读全帖 |
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h***y
发帖数: 834 | 41 ☆─────────────────────────────────────☆
Aplusplus (Hakuna Matata) 于 (Sun Mar 27 11:11:49 2011, 美东) 提到:
首先我申明，我放弃我的ignore list， 欢迎所有ID参加。
每个医生护士或者其他相关人员， 无论在中国还是美国， 肯定都有一些case刻骨铭心
。 请大家把你印象最深的一例写出来， 与大家分享。 比方说， 清华男被鉈杀案，
那个中国来的护士就是诊断的关键， 相信本例就是她一辈子也忘不了的诊断。
我觉得这样的讨论有助于大家提高学医热情，丰富医学知识，开拓临床思维， 间接帮
助考版医生复习，准备CS，和 interview. 你要是能从中挑一个case让你PD
impressed，我想我的目的就达到了。
希望所有ID， 包括考生， resident， fellow， attending，PA/NP, nurse 和中国来
的医生不再从事医疗工作的， 都能奉献你的pearl. 英文中文都行。
我先来：
CC: Left leg pain for 5 days.
35 y... 阅读全帖 |
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m******r
发帖数: 1904 | 42 1.没用过。不懂。
2.Common abbreviations for SP note
BP Blood pressure
P pulse
R respiatory rate
T temperature
yo year-old
m male
f female
b black
w white
L left
R right
hx history
h/o history of
c/o complaining of
NL normal limits
WNL within normal limits
Ø without or no
+ positive
- negative
Abd abdomen
AIDS acquired immune deficiency... 阅读全帖 |
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m******r
发帖数: 1904 | 43 ☆─────────────────────────────────────☆
oldclock (oldclock) 于 (Wed Apr 18 10:59:11 2012, 美东) 提到:
1。step2 CS的UW video要单买还是在CS的UW题库里都包括了？
2。patient note可以写ABBREVIATIONS吗？除了FA上的ABBREVIATIONS，还有其他哪些
地方的ABBREVIATIONS可以用呢？
3。此外，看到麦地里有提到过patient note用子弹体方式书写，什莫是子弹体啊？哪
里可以找到范文呢？ 给扫扫盲吧。
多谢各位了！
☆─────────────────────────────────────☆
medwater (小麦) 于 (Wed Apr 18 11:08:03 2012, 美东) 提到:
1.没用过。不懂。
2.Common abbreviations for SP note
BP Blood pressure
P pulse
R respiatory rat... 阅读全帖 |
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t***3
发帖数: 100 | 44
本人创建了一个太阳能交流群 46265152
希望所有与太阳能研究（c-Si, p-Si III-VI, CIGS, CdSe, polymer and nano et
al) 相关的朋友加入，大家一起分享资源，交流心得，共同提高！ |
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t****e
发帖数: 329 | 45 太阳基本哪里都能照到 风力地区差异太大 不能只看发电的效率和成本 还要考虑输电
费用和损耗 |
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t***3
发帖数: 100 | 48 楼下兄弟也做这一行么？
nanosolar 我可是看了他们技术的whitepaper的，忽悠有点，但干货更多啊！ |
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s******y
发帖数: 92 | 49 干货还是不少的... Nanosolar用啥材料啊？ |
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t***3
发帖数: 100 | 50 只有单晶硅有前途，薄膜就有前途
CIGS 与CdTe 基本已经市场化了 |
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