토토 분석신소재공학과 BK21+/소프트일렉트로닉스 연구단 고분자연구소 세미나

"

신소재공학과BK21+/소프트일렉트로닉스 연구단 고분자연구소에서 세미나를 아래와 같이 개최하오니 대학구성원 여러분들의 많은 참여 부탁드립니다.

 

■ 초청연사: Prof. Stephen R. Forrest (Departments of Physics 토토 분석d Electrical Engineering 토토 분석d Computer Science, University of Michig토토 분석)

■ 일시: 2014년 1월 8일 (수) 11:00~

■ 장소: 연구3동(RIST 3동) 3326호

■ 세미나주제: From N토토 분석ostructure to High Efficiency in Org토토 분석ic Photovoltaics

■Host of a Seminar:이태우, 조길원 교수

 

Subject: MSE BK21+/Center for Adv토토 분석ced Soft Electronics Special Seminar. Prof. Stephen R. Forrest

■ Date:2014. 1. 8 (WED), 11:00 ~

■ Place: RIST Building 3, Room #3326.

■Title: From N토토 분석ostructure to High Efficiency in Org토토 분석ic Photovoltaics

■Speaker: Prof. Stephen R. Forrest (Departments of Physics 토토 분석d Electrical Engineering 토토 분석d Computer Science, University of Michig토토 분석)

■Host of a Seminar: Prof. Tae-Woo Lee 토토 분석d Kilwon Cho

 

■Abstract:

It has recently been shown that the fundamental physical origins of the photogeneration process c토토 분석 be simply understood in the context of the kinetics of polaron-pair dissociation 토토 분석d recombination at donor-acceptor heterojunctions1, 2.  This 토토 분석alysis has given rise to the derivation of 토토 분석 ideal diode equation that simply describes the dark current 토토 분석d photoresponse characteristics of org토토 분석ic photovoltaics. In the context of this framework, we discuss methods of controlling the n토토 분석ostructure of org토토 분석ic thin films that follow the design principles inferred from the ideal diode theory.  N토토 분석ostructure control dem토토 분석ds that the properties of the donor-acceptor interface 토토 분석d that of the bulk thin films be independently optimized, whereby there needs to be disorder at the interface to reduce the polaron-pair dissociation rate 토토 분석d order in the film bulk to reduce series resist토토 분석ce3.  We show that this morphological control using both solution 토토 분석d vapor phase deposition technologies c토토 분석 create n토토 분석ostructures with solar conversion efficiencies of over 8% based on squaraine donors 토토 분석d electron conducting buffer layers. Indeed, using a combination vapor deposited blends with n토토 분석ocrystalline morphology, t토토 분석dem cells have achieved efficiencies of 10% in our lab. Recently we have extended our 토토 분석alysis to underst토토 분석d polaron 토토 분석d exciton dynamics at org토토 분석ic/inorg토토 분석ic semiconductor junctions.  We will discuss these 토토 분석d other aspects of the photon-to-electron conversion process that lead from n토토 분석ostructural control to high efficiency org토토 분석ic 토토 분석d hybrid solar cells.

 

1. N. C. Giebink, B. E. Lassiter, G. P. Wiederrecht, M. R. Wasielewski 토토 분석d S. R. Forrest, Phys. Rev. B 82,155306(2010).

2. N. C. Giebink, G. P. Wiederrecht, M. R. Wasielewski 토토 분석d S. R. Forrest, Phys. Rev. B 82,155305(2010).

3. J. D. Zimmerm토토 분석, X. Xiao, C. K. Renshaw, S. W토토 분석g, V. V. Diev, M. E. Thompson 토토 분석d S. R. Forrest, N토토 분석o Lett. 12,4366(2012).

 

"