【在 t******o 的大作中提到】 : Our company rate is $125/hr for PE, $145/hr for Director of Engineering, and : $165/hr for Principal. We are in structural field.
H*l
11 楼
i got it but my research topic would be silion solar cell... 4 year silicon solar cell... i donot know in other Univ.,will PhD switch his research during 4 or 5 years ...... i am thinking my skills (like ideas, fab operation) are limited in a very narrow and traditional area... if comparing Nano groups, they are playing much much advanced facilities.. for me PECVD is enough. All my work is find a low temp. fast process on PECVD.... I really do not know my way. I think IC is for smart people,i ha
c*l
12 楼
agree. phd will train for how to solve problems systematically.... that's very useful
c*l
13 楼
change your way of thinking you should develop ability to solve problems systematically rather than sticking to one specific area
years a
【在 H*****l 的大作中提到】 : i got it : but my research topic would be silion solar cell... 4 year silicon solar : cell... : i donot know in other Univ.,will PhD switch his research during 4 or 5 years : ...... i am thinking my skills (like ideas, fab operation) are limited in a : very narrow and traditional area... : if comparing Nano groups, they are playing much much advanced facilities.. : for me PECVD is enough. All my work is find a low temp. fast process on : PECVD.... : I really do not know my way.
huyou.... 现在发现 solid state electronics3大shits(sorry,说重了),就是solar cell, display( esp.flexible) and LED low cost industry=== payment for each engineer is lower...since payment itself is one kind of cost... 啥东西台湾日本做好,啥就挂了。。 可能是说重了,不过这几个我都有同学在不错的学校和group做 大家都觉得终极王道还是老实做classical semiconductor: ultra short gate mosfet ... hehe,可是不是每个人都够牛而且有命去做的。。。。 发牢骚。。。。
【在 H*****l 的大作中提到】 : huyou.... : 现在发现 solid state electronics3大shits(sorry,说重了),就是solar cell, : display( esp.flexible) and LED : low cost industry=== payment for each engineer is lower...since payment : itself is one kind of cost... : 啥东西台湾日本做好,啥就挂了。。 : 可能是说重了,不过这几个我都有同学在不错的学校和group做 : 大家都觉得终极王道还是老实做classical semiconductor: ultra short gate mosfet : ... : hehe,可是不是每个人都够牛而且有命去做的。。。。
【在 H*****l 的大作中提到】 : huyou.... : 现在发现 solid state electronics3大shits(sorry,说重了),就是solar cell, : display( esp.flexible) and LED : low cost industry=== payment for each engineer is lower...since payment : itself is one kind of cost... : 啥东西台湾日本做好,啥就挂了。。 : 可能是说重了,不过这几个我都有同学在不错的学校和group做 : 大家都觉得终极王道还是老实做classical semiconductor: ultra short gate mosfet : ... : hehe,可是不是每个人都够牛而且有命去做的。。。。
r*i
20 楼
solar cell is a perfect place for device people to start up
Most of the large solar cell company no longer do significant R&D, especially silicon based. Are you doing thin-film or traditional bulk-silicon ? for bulk-silicon : did you try SunPower, Evergeen Solar ? they are middle-size companies in CA for thin-film : did you try Philips, ECD, Applied Matereial ? ECD is not a big company but also not small, but doing a-Si thin-film solar. Applied materiel is doing a-Si thin-film solar equipment. They may have position since it's still in development.
luckily,i am in my second year...not hurry for job hunting we have cooperation with Sunpower badly, i am sometimes lost when i am waitting for CVD process thin film...you mean epi growth on Low quality sub? or a-si? GE and BP right now are shrinking their solar research it seems big company does not think solar cell is a promising green source, esp. silicon
size
【在 L****a 的大作中提到】 : Most of the large solar cell company no longer do significant R&D, : especially : silicon based. Are you doing thin-film or traditional bulk-silicon ? : for bulk-silicon : did you try SunPower, Evergeen Solar ? they are middle-size : companies in CA : for thin-film : did you try Philips, ECD, Applied Matereial ? ECD is not : a big company but also not small, but doing a-Si thin-film solar. Applied : materiel is doing a-Si thin-film solar equipment. They may have position : since it's still in development.
L*a
23 楼
I mean a-Si. For silicon-based thin film, I only see a-Si based thin film products, others may be still in the lab. GE and BP's concern may be reasonable, because there are already many players, and only a few of countries are suited for solar energy. Besides, solar solar pannel usually lasts 15-25 years, so product replacement cycle is very long.
【在 H*****l 的大作中提到】 : luckily,i am in my second year...not hurry for job hunting : we have cooperation with Sunpower : badly, i am sometimes lost when i am waitting for CVD process : thin film...you mean epi growth on Low quality sub? : or a-si? : GE and BP right now are shrinking their solar research : it seems big company does not think solar cell is a promising green source, : esp. silicon : : size
H*l
24 楼
already many players? i am shocked....
【在 L****a 的大作中提到】 : I mean a-Si. For silicon-based thin film, I only see a-Si based thin film : products, others may be still in the lab. : GE and BP's concern may be reasonable, because there are already many : players, and only a few of countries are suited for solar energy. Besides, : solar solar pannel usually lasts 15-25 years, so product replacement cycle : is very long.
a*c
25 楼
很激动,竟然有人讨论俺的专业。俺也贡献一些消息把。 有没有包子阿?? My PhD was basic on a-Si solar cells.Actually a-Si solar cell is already in production now.Company already made money by selling a-Si solar pannels. It has more advantage comparing pure c-Si. GE and BP are not big players at all in solar cell industry. United Solar is the best industry in a-Si solar cells. First solar is also very good at CdSe/CdTe solar cells. AMT only works on tandem cells.And they do not have good R&D group. It is very promising to stay in s
【在 L****a 的大作中提到】 : I mean a-Si. For silicon-based thin film, I only see a-Si based thin film : products, others may be still in the lab. : GE and BP's concern may be reasonable, because there are already many : players, and only a few of countries are suited for solar energy. Besides, : solar solar pannel usually lasts 15-25 years, so product replacement cycle : is very long.
H*l
26 楼
包子? 我搓,才来MITBBS,不知道什么是包子。。。 i agree with you it is very strange, not many solar cell companies have good R&D groups my research realm is silicon heterojunction solar cell(not mid-bandgap part in a tandem cell but a-si/c-si solar cell) and.... play with new device structure and fast process i knew United Solar/First Solar/Sunpower...... but there are very limited vacancies in their R&D groups. And i noticed that many solar guys finally jumped back to traditional semiconductor area after 1or 2 ye
【在 a*******c 的大作中提到】 : 很激动,竟然有人讨论俺的专业。俺也贡献一些消息把。 : 有没有包子阿?? : My PhD was basic on a-Si solar cells.Actually a-Si solar cell is already in : production now.Company already made money by selling a-Si solar pannels. : It has more advantage comparing pure c-Si. : GE and BP are not big players at all in solar cell industry. : United Solar is the best industry in a-Si solar cells. : First solar is also very good at CdSe/CdTe solar cells. : AMT only works on tandem cells.And they do not have good R&D group. : It is very promising to stay in s
H*l
27 楼
what does " it is very promising to stay in solar cell after serveral years" mean? after serveral years work experience? after serveral years that solar grows bigger? i am very conservative in tech...
in
【在 a*******c 的大作中提到】 : 很激动,竟然有人讨论俺的专业。俺也贡献一些消息把。 : 有没有包子阿?? : My PhD was basic on a-Si solar cells.Actually a-Si solar cell is already in : production now.Company already made money by selling a-Si solar pannels. : It has more advantage comparing pure c-Si. : GE and BP are not big players at all in solar cell industry. : United Solar is the best industry in a-Si solar cells. : First solar is also very good at CdSe/CdTe solar cells. : AMT only works on tandem cells.And they do not have good R&D group. : It is very promising to stay in s
a*c
28 楼
aSi/ncSi is very popular now.Many groups are working on that. I do not know too much about First solar ,because they are working on CdSe/CdTe.And they did not tell anything about their technique. But I heard they are good. Sunpower are working on c-Si,and it is still a start up company. United solar is the best until now in silicon industry.They have very strong R&D group,but only hire citizen. I do not know any one transfer from solar cells to traditional devices.I only know that lot
【在 H*****l 的大作中提到】 : 包子? : 我搓,才来MITBBS,不知道什么是包子。。。 : i agree with you : it is very strange, not many solar cell companies have good R&D groups : my research realm is silicon heterojunction solar cell(not mid-bandgap part : in a tandem cell but a-si/c-si solar cell) and.... play with new device : structure and fast process : i knew United Solar/First Solar/Sunpower...... : but there are very limited vacancies in their R&D groups. : And i noticed that many solar guys finally jumped back to traditional
L*a
29 楼
Indeed, it's a very exicing area and industry. Yes, united solar is the best company in the a-Si thin-film area, because the founder of ECD, which acquired united solar a few years back, is the pioneer of a-Si material. At this moment, United solar is the only company who can make triple-junction a-Si thinfilm solar cell on stainless steel substrate. First solar is currently the only player in CdSe/CdTe, nobody else can make CdTe thin-film solar in large scale. The process technology is First so
【在 a*******c 的大作中提到】 : 很激动,竟然有人讨论俺的专业。俺也贡献一些消息把。 : 有没有包子阿?? : My PhD was basic on a-Si solar cells.Actually a-Si solar cell is already in : production now.Company already made money by selling a-Si solar pannels. : It has more advantage comparing pure c-Si. : GE and BP are not big players at all in solar cell industry. : United Solar is the best industry in a-Si solar cells. : First solar is also very good at CdSe/CdTe solar cells. : AMT only works on tandem cells.And they do not have good R&D group. : It is very promising to stay in s
L*a
30 楼
can you elaborate what are the main research directions in a-Si/ncSi area? Prodcuts are already there, why people are interested in its research now? The fundamental limitation of a-Si thin film is its convresion efficiency is very low. I believe this problem would't be solved in the future.
heard
【在 a*******c 的大作中提到】 : aSi/ncSi is very popular now.Many groups are working on that. : I do not know too much about First solar ,because they are working on : CdSe/CdTe.And they did not tell anything about their technique. But I heard : they are good. : Sunpower are working on c-Si,and it is still a start up company. : United solar is the best until now in silicon industry.They have very : strong R&D group,but only hire citizen. : I do not know any one transfer from solar cells to traditional devices.I : only know that : lot
L*a
31 楼
Yes, sure. Just see how many products there. Thin-film area may be a bit better. But whether or not it's able to compete with bulk silicon solar cells remains a big problem. I would say your concern is right. Those solar-cell company once finish R&D, they wouldn't like to invest in significant R&D further. I guess that's why you coun't find too many positions in big companies ba.
【在 H*****l 的大作中提到】 : already many players? : i am shocked....
H*l
32 楼
i could a-si/c-si is junction interface----silicon heterojunction solar cell a-si brings you high Ef difference, passivation on surface ( so no need on diffusion) and still reasonable light transport a-si is low temp process so no need to go to 800 for diffusion or anealing and a-si dep is very fast since it is only 10-20 nm for a-si emitter/ passivator the interest lies on " how to make efficiency from 200 degree process as high as traditional 800-1000 degree process"
is
【在 L****a 的大作中提到】 : can you elaborate what are the main research directions in a-Si/ncSi area? : Prodcuts are already there, why people are interested in its research now? : The fundamental limitation of a-Si thin film is its convresion efficiency is : very low. I believe this problem would't be solved in the future. : : heard
a*c
33 楼
Exactly.In United Solar,they at least work on this triple juntion 10 years agon until they got profit recently.They have the highest efficiency as triple junction.Their R&D group is very strong. First Solar can reach at least 10% on CdSe/CdTe in production.They are the best in this solar cells.And they did not talk at all. AMT is not R&D company.They are making PECVD system,so I do not think they are so focus on efficiency. But they still have pretty high efficiency on their tandem cells in lar
【在 L****a 的大作中提到】 : Indeed, it's a very exicing area and industry. : Yes, united solar is the best company in the a-Si thin-film area, : because the founder of ECD, which acquired united solar a few years back, : is the pioneer of a-Si material. At this moment, United solar is the only : company who can make triple-junction a-Si thinfilm solar cell on stainless : steel substrate. : First solar is currently the only player in CdSe/CdTe, nobody else can : make CdTe thin-film solar in large scale. The process technology is First : so
H*l
34 楼
“I do not know any one transfer from solar cells to traditional devices.I only know that lots of guys transfer from traditional device to solar cells.”
a*c
35 楼
It is a very good question.I also want to know what is the future on aSi solar cells.And since I just graduated,so I can not tell what is the right direction in aSi-ncSi area. Again,United solar has reached very high efficiency by making aSi/ncSi/ncSi if I remember correctly.Also,there are some groups try to dig out some other silicon alloy to improve effiency. The fundamental problem of a-Si is SW effect.It has not been solved after thirty years when it was discovered.I also do not think there
【在 L****a 的大作中提到】 : can you elaborate what are the main research directions in a-Si/ncSi area? : Prodcuts are already there, why people are interested in its research now? : The fundamental limitation of a-Si thin film is its convresion efficiency is : very low. I believe this problem would't be solved in the future. : : heard
a*c
36 楼
hehe,I do not know.I just know many guys try to transfer to this area. also in I am not familar with NSF and DAPRA. Most of the funding I knew are from DOE.And DOE cut 30% this year.Maybe it does not cut solar parts. Anyway, it is very nice that we can discuss it here.Hopfully more people can join in our discussion~~
【在 H*****l 的大作中提到】 : “I do not know any one transfer from solar cells to traditional devices.I : only know that : lots of guys transfer from traditional device to solar cells.”
H*l
37 楼
that is a-si silicon solar cell( traditioanl so-called thin film solar cell) right now a new area is growing epi on MGS or other low quality substrate... some of my friends demonstrate 13% derived from 15um epi on 500um MGS (in other words, dead) substrate. the a-si/c-si i talked here is HIT solar cell...
ncSi other
【在 a*******c 的大作中提到】 : : hehe,I do not know.I just know many guys try to transfer to this area. : also : in : I am not familar with NSF and DAPRA. Most of the funding I knew are from : DOE.And DOE cut 30% this year.Maybe it does not cut solar parts. : Anyway, it is very nice that we can discuss it here.Hopfully more people : can join in our discussion~~
r*e
38 楼
别提darpa 他家几乎入不敷出了 回国发展吧 向施同学学习
【在 a*******c 的大作中提到】 : : hehe,I do not know.I just know many guys try to transfer to this area. : also : in : I am not familar with NSF and DAPRA. Most of the funding I knew are from : DOE.And DOE cut 30% this year.Maybe it does not cut solar parts. : Anyway, it is very nice that we can discuss it here.Hopfully more people : can join in our discussion~~
you are bloody right i never think of joining a startup company... i noticed that some CEO CTO of startup companies were PhD graduated at 2006 ,even 2007..that is it.... horrible...
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
15% ?? several months ago, First solar's efficiency was still 11%. In fact, bulk silicon can achieve effiency way higher than 15% depending on it's monocrystalline or multicrystalline silicon. You are right that process engineering is very important. When people say they achieve 30% 45% or whatever in the lab, never believe that. Nobody know what it will happen in the large scale production.
san 15
【在 j********1 的大作中提到】 : 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
H*l
48 楼
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
【在 L****a 的大作中提到】 : 15% ?? several months ago, First solar's efficiency was still 11%. : In fact, bulk silicon can achieve effiency way higher than 15% depending on : it's monocrystalline or multicrystalline silicon. : You are right that process engineering is very important. When people say : they achieve 30% 45% or whatever in the lab, never believe that. Nobody : know what it will happen in the large scale production. : : san : 15
H*l
49 楼
heared that unit price for gasoline would go dwon to 50 bucks in five years. ... orz... solar cell sucks again~
on
【在 L****a 的大作中提到】 : 15% ?? several months ago, First solar's efficiency was still 11%. : In fact, bulk silicon can achieve effiency way higher than 15% depending on : it's monocrystalline or multicrystalline silicon. : You are right that process engineering is very important. When people say : they achieve 30% 45% or whatever in the lab, never believe that. Nobody : know what it will happen in the large scale production. : : san : 15
【在 c********g 的大作中提到】 : Quantum dot solar cell 如何?
H*l
59 楼
因为现在startup的门槛越来越高 solar cell的难度不在于efficiecny破纪录,而在于如何用现在1/5的成本作一个20%的 cell,还要至少把这个技术转移到100cm2的pioneer line的 量产上 nano solar那种连个产房都没,拿着blueprint就敢去套风投,还能把钱搞来的时代结 束了。。。。 现在风投都会找那些退休的老头子去厂子里评估,没有量产能量是没钱给你的。。。。 平时看到到的真神,现在在startup都能看到。。。 advent solar,我很看好,也开始裁员了,他们的EWT似乎无法在pioneer line 上demo 剩下sunpower的smartsolar,不得不承认,stanford的这票人,确实牛x 量产22.4%
【在 s****e 的大作中提到】 : 我听下来为什么你们几个不共同开个STARTUP?
L*a
60 楼
too many CIGS solar companies failed. just some examples : DayStar : a few years back, tryed to put CIGS solar on plastic substrate, it failed, so now focused on CIGS on glasses substrate. But still haven't seen one piece of solar cell from their plants. Ascent solar : have been working on CIGS on plastic substrates for many years, currently even hasn't worked out a 1.5MW pilot production line. Now it keeps burning investors' money. Nano solar : probably the biggest boaster i
淡定,淡定... 靠solar cell拿个Ph.D也挺好的,我ibm实习的时候,device group的tech lead就是做 Si solar cell出身的。如果你以 后想转cmos industry (even thought I don't think it is a good choice),多学点 device physics就好了。 如果能转IC design是不错的,不知道你们那里好不好转。
我想你是牛校出生拉,所以看法就不一样啦 我想那个tech lead可能是 UCB或者stanford 的曾经的silicon solar cell group出来的 比如Dr. Richard Swanson的学生 比如Dr.Alan L. Fahrenbruch /Dr. Richard H.Bube的学生 cmos industry不是好choice? 我现在就像回traditional coms industry呢。。。赫赫 对ic design没啥想法
【在 a*******i 的大作中提到】 : 淡定,淡定... : 靠solar cell拿个Ph.D也挺好的,我ibm实习的时候,device group的tech lead就是做 : Si solar cell出身的。如果你以 : 后想转cmos industry (even thought I don't think it is a good choice),多学点 : device physics就好了。 : 如果能转IC design是不错的,不知道你们那里好不好转。